./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ba1645-d003-4340-bdda-26728a739319/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ba1645-d003-4340-bdda-26728a739319/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_33ba1645-d003-4340-bdda-26728a739319/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ba1645-d003-4340-bdda-26728a739319/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ba1645-d003-4340-bdda-26728a739319/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_33ba1645-d003-4340-bdda-26728a739319/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 54849713272284bcfc1d249b79bdfa502d33e8d1537f459c00022c26afd8a94c --- 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 06:44:24,500 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:44:24,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:44:24,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:44:24,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:44:24,514 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:44:24,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:44:24,516 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:44:24,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:44:24,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:44:24,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:44:24,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:44:24,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:44:24,520 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:44:24,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:44:24,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:44:24,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:44:24,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:44:24,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:44:24,524 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:44:24,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:44:24,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:44:24,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:44:24,527 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:44:24,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:44:24,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:44:24,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:44:24,530 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:44:24,531 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:44:24,531 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:44:24,531 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:44:24,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:44:24,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:44:24,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:44:24,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:44:24,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:44:24,534 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:44:24,534 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:44:24,534 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:44:24,535 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:44:24,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:44:24,536 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ba1645-d003-4340-bdda-26728a739319/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 06:44:24,550 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:44:24,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:44:24,550 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:44:24,550 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:44:24,551 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:44:24,551 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:44:24,551 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:44:24,551 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:44:24,551 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:44:24,551 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:44:24,551 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:44:24,552 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:44:24,552 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:44:24,552 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:44:24,552 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:44:24,552 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:44:24,552 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:44:24,552 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:44:24,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:44:24,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:44:24,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:44:24,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:44:24,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:44:24,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:44:24,553 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:44:24,553 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:44:24,553 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:44:24,553 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:44:24,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:44:24,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:44:24,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:44:24,554 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:44:24,554 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:44:24,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:44:24,554 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:44:24,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:44:24,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:44:24,554 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:44:24,554 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_33ba1645-d003-4340-bdda-26728a739319/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ba1645-d003-4340-bdda-26728a739319/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54849713272284bcfc1d249b79bdfa502d33e8d1537f459c00022c26afd8a94c [2022-12-14 06:44:24,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:44:24,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:44:24,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:44:24,743 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:44:24,743 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:44:24,744 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ba1645-d003-4340-bdda-26728a739319/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-12-14 06:44:27,287 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:44:27,766 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:44:27,767 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ba1645-d003-4340-bdda-26728a739319/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-12-14 06:44:27,802 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ba1645-d003-4340-bdda-26728a739319/bin/utaipan-gh47qXpMRh/data/b12d7a86a/7f035f97909740b793ca9b4a47d35f8f/FLAG60aad0076 [2022-12-14 06:44:27,859 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ba1645-d003-4340-bdda-26728a739319/bin/utaipan-gh47qXpMRh/data/b12d7a86a/7f035f97909740b793ca9b4a47d35f8f [2022-12-14 06:44:27,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:44:27,864 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:44:27,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:44:27,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:44:27,869 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:44:27,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:44:27" (1/1) ... [2022-12-14 06:44:27,871 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 06:44:27, skipping insertion in model container [2022-12-14 06:44:27,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:44:27" (1/1) ... [2022-12-14 06:44:27,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:44:28,028 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:44:28,785 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 06:44:28,814 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 06:44:28,824 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 06:44:28,834 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 06:44:28,874 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 06:44:28,910 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-12-14 06:44:28,922 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-12-14 06:44:28,961 WARN L623 FunctionHandler]: Unknown extern function __get_page_tail [2022-12-14 06:44:28,962 WARN L623 FunctionHandler]: Unknown extern function dump_page [2022-12-14 06:44:29,045 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 06:44:29,048 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 06:44:29,049 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 06:44:29,056 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 06:44:29,062 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 06:44:29,079 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 06:44:29,086 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-12-14 06:44:29,113 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 06:44:29,118 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 06:44:29,120 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 06:44:29,126 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-12-14 06:44:29,226 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 06:44:29,232 WARN L623 FunctionHandler]: Unknown extern function ___pskb_trim [2022-12-14 06:44:29,248 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 06:44:29,303 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 06:44:29,304 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 06:44:29,368 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 06:44:29,368 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 06:44:29,380 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 06:44:29,380 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:44:29,419 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-14 06:44:29,424 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 06:44:29,511 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_dword [2022-12-14 06:44:29,517 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_dword [2022-12-14 06:44:29,572 WARN L623 FunctionHandler]: Unknown extern function __pci_enable_wake [2022-12-14 06:44:29,636 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-12-14 06:44:29,659 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 06:44:29,882 WARN L623 FunctionHandler]: Unknown extern function pci_find_ext_capability [2022-12-14 06:44:29,882 WARN L623 FunctionHandler]: Unknown extern function pcie_capability_write_word [2022-12-14 06:44:29,884 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 06:44:29,896 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-12-14 06:44:29,903 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 06:44:29,910 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 06:44:29,917 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 06:44:29,917 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 06:44:29,919 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 06:44:29,921 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 06:44:29,927 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 06:44:29,927 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 06:44:29,934 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 06:44:29,935 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 06:44:29,968 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 06:44:29,977 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 06:44:30,007 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 06:44:30,007 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 06:44:30,008 WARN L623 FunctionHandler]: Unknown extern function netdev_update_features [2022-12-14 06:44:30,026 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 06:44:30,066 WARN L623 FunctionHandler]: Unknown extern function device_set_wakeup_enable [2022-12-14 06:44:30,067 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:30,068 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:30,069 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 06:44:30,069 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 06:44:30,076 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 06:44:30,101 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 06:44:30,102 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-12-14 06:44:30,110 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:30,113 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 06:44:30,127 WARN L623 FunctionHandler]: Unknown extern function pcie_get_readrq [2022-12-14 06:44:30,127 WARN L623 FunctionHandler]: Unknown extern function pcie_set_readrq [2022-12-14 06:44:30,144 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 06:44:30,145 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:30,189 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-12-14 06:44:30,190 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:30,191 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 06:44:30,202 WARN L623 FunctionHandler]: Unknown extern function build_skb [2022-12-14 06:44:30,204 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 06:44:30,205 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 06:44:30,206 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:44:30,220 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 06:44:30,221 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 06:44:30,222 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 06:44:30,222 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 06:44:30,222 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 06:44:30,223 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-12-14 06:44:30,229 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-12-14 06:44:30,235 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-12-14 06:44:30,235 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-12-14 06:44:30,263 WARN L623 FunctionHandler]: Unknown extern function pskb_expand_head [2022-12-14 06:44:30,264 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 06:44:30,266 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 06:44:30,266 WARN L623 FunctionHandler]: Unknown extern function csum_ipv6_magic [2022-12-14 06:44:30,268 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:30,295 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 06:44:30,296 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 06:44:30,297 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 06:44:30,302 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-12-14 06:44:30,308 WARN L623 FunctionHandler]: Unknown extern function pci_enable_msi_block [2022-12-14 06:44:30,308 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:30,309 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:30,310 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-12-14 06:44:30,311 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 06:44:30,311 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 06:44:30,312 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 06:44:30,313 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 06:44:30,324 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 06:44:30,324 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 06:44:30,330 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 06:44:30,331 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 06:44:30,332 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 06:44:30,338 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 06:44:30,343 WARN L623 FunctionHandler]: Unknown extern function pci_wake_from_d3 [2022-12-14 06:44:30,344 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 06:44:30,355 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device_mem [2022-12-14 06:44:30,356 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:30,356 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:30,356 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:30,357 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-14 06:44:30,357 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:30,357 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 06:44:30,358 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:30,359 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:30,360 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-12-14 06:44:30,360 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 06:44:30,361 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:30,362 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 06:44:30,363 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 06:44:30,363 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 06:44:30,363 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:30,364 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 06:44:30,364 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 06:44:30,365 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 06:44:30,365 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 06:44:30,370 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 06:44:30,371 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 06:44:30,371 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 06:44:30,377 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 06:44:30,377 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 06:44:30,382 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 06:44:30,383 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:30,383 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 06:44:30,390 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:30,390 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 06:44:30,861 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 06:44:30,862 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 06:44:30,865 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 06:44:30,865 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 06:44:30,872 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 06:44:30,880 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 06:44:30,887 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 06:44:30,890 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 06:44:30,891 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 06:44:30,896 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 06:44:30,897 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 06:44:30,897 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 06:44:30,897 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 06:44:30,898 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 06:44:30,898 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_trylock [2022-12-14 06:44:30,899 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 06:44:30,900 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 06:44:30,900 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 06:44:30,901 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 06:44:30,901 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 06:44:30,901 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 06:44:30,902 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 06:44:30,902 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 06:44:30,927 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-12-14 06:44:30,997 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 06:44:30,998 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:44:30,999 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 06:44:31,000 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 06:44:31,001 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:44:31,003 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:44:31,006 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 06:44:31,008 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:44:31,009 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:44:31,022 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:44:31,023 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:44:31,025 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:31,026 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:31,026 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:31,027 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:31,028 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:31,031 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 06:44:31,031 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:44:31,032 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 06:44:31,037 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 06:44:31,038 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 06:44:31,066 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 06:44:31,103 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 06:44:31,104 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 06:44:31,104 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 06:44:31,150 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 06:44:31,150 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 06:44:31,156 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 06:44:31,157 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 06:44:31,157 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 06:44:31,170 WARN L623 FunctionHandler]: Unknown extern function device_set_wakeup_enable [2022-12-14 06:44:31,177 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-12-14 06:44:31,226 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 06:44:31,227 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 06:44:31,237 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 06:44:31,972 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_33ba1645-d003-4340-bdda-26728a739319/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508632,508645] [2022-12-14 06:44:31,976 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_33ba1645-d003-4340-bdda-26728a739319/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508801,508814] [2022-12-14 06:44:31,976 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_33ba1645-d003-4340-bdda-26728a739319/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508968,508981] [2022-12-14 06:44:31,977 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_33ba1645-d003-4340-bdda-26728a739319/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[509136,509149] [2022-12-14 06:44:31,984 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 06:44:31,985 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 06:44:31,986 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 06:44:31,987 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 06:44:31,987 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 06:44:31,999 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 06:44:32,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:44:32,042 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:44:32,120 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 06:44:32,121 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 06:44:32,121 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 06:44:32,121 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 06:44:32,122 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 06:44:32,122 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-12-14 06:44:32,123 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-12-14 06:44:32,124 WARN L623 FunctionHandler]: Unknown extern function __get_page_tail [2022-12-14 06:44:32,124 WARN L623 FunctionHandler]: Unknown extern function dump_page [2022-12-14 06:44:32,129 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 06:44:32,130 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 06:44:32,130 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 06:44:32,131 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 06:44:32,131 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 06:44:32,132 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 06:44:32,133 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-12-14 06:44:32,134 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 06:44:32,135 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 06:44:32,135 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 06:44:32,136 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-12-14 06:44:32,138 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 06:44:32,139 WARN L623 FunctionHandler]: Unknown extern function ___pskb_trim [2022-12-14 06:44:32,139 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 06:44:32,141 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 06:44:32,141 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 06:44:32,142 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 06:44:32,142 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 06:44:32,143 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 06:44:32,143 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:44:32,144 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-14 06:44:32,144 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 06:44:32,145 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_dword [2022-12-14 06:44:32,147 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_dword [2022-12-14 06:44:32,149 WARN L623 FunctionHandler]: Unknown extern function __pci_enable_wake [2022-12-14 06:44:32,150 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-12-14 06:44:32,151 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 06:44:32,159 WARN L623 FunctionHandler]: Unknown extern function pci_find_ext_capability [2022-12-14 06:44:32,159 WARN L623 FunctionHandler]: Unknown extern function pcie_capability_write_word [2022-12-14 06:44:32,160 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 06:44:32,161 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-12-14 06:44:32,162 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 06:44:32,162 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 06:44:32,163 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 06:44:32,163 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 06:44:32,165 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 06:44:32,165 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 06:44:32,166 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 06:44:32,166 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 06:44:32,167 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 06:44:32,167 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 06:44:32,170 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 06:44:32,172 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 06:44:32,175 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 06:44:32,175 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 06:44:32,175 WARN L623 FunctionHandler]: Unknown extern function netdev_update_features [2022-12-14 06:44:32,177 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 06:44:32,183 WARN L623 FunctionHandler]: Unknown extern function device_set_wakeup_enable [2022-12-14 06:44:32,184 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:32,185 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:32,185 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 06:44:32,185 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 06:44:32,186 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 06:44:32,202 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 06:44:32,202 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-12-14 06:44:32,204 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:32,206 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 06:44:32,208 WARN L623 FunctionHandler]: Unknown extern function pcie_get_readrq [2022-12-14 06:44:32,208 WARN L623 FunctionHandler]: Unknown extern function pcie_set_readrq [2022-12-14 06:44:32,218 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 06:44:32,218 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:32,231 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-12-14 06:44:32,232 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:32,232 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 06:44:32,234 WARN L623 FunctionHandler]: Unknown extern function build_skb [2022-12-14 06:44:32,236 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 06:44:32,237 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 06:44:32,237 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:44:32,241 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 06:44:32,241 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 06:44:32,242 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 06:44:32,242 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 06:44:32,242 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 06:44:32,243 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-12-14 06:44:32,244 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-12-14 06:44:32,244 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-12-14 06:44:32,244 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-12-14 06:44:32,247 WARN L623 FunctionHandler]: Unknown extern function pskb_expand_head [2022-12-14 06:44:32,248 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 06:44:32,249 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 06:44:32,250 WARN L623 FunctionHandler]: Unknown extern function csum_ipv6_magic [2022-12-14 06:44:32,251 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:32,258 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 06:44:32,260 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 06:44:32,260 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 06:44:32,261 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-12-14 06:44:32,261 WARN L623 FunctionHandler]: Unknown extern function pci_enable_msi_block [2022-12-14 06:44:32,262 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:32,262 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:32,262 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-12-14 06:44:32,263 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 06:44:32,264 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 06:44:32,264 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 06:44:32,265 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 06:44:32,266 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 06:44:32,266 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 06:44:32,267 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 06:44:32,267 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 06:44:32,268 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 06:44:32,269 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 06:44:32,269 WARN L623 FunctionHandler]: Unknown extern function pci_wake_from_d3 [2022-12-14 06:44:32,270 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 06:44:32,272 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device_mem [2022-12-14 06:44:32,272 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:32,273 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:32,273 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:32,273 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-14 06:44:32,273 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:32,273 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 06:44:32,274 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:32,277 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:32,277 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-12-14 06:44:32,278 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 06:44:32,278 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:32,279 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 06:44:32,279 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 06:44:32,280 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 06:44:32,280 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:32,280 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 06:44:32,280 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 06:44:32,281 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 06:44:32,281 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 06:44:32,282 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 06:44:32,282 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 06:44:32,282 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 06:44:32,282 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 06:44:32,282 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 06:44:32,283 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 06:44:32,283 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:32,283 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 06:44:32,284 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:32,284 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 06:44:32,289 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 06:44:32,290 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 06:44:32,291 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 06:44:32,291 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 06:44:32,297 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 06:44:32,301 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 06:44:32,322 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 06:44:32,325 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 06:44:32,325 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 06:44:32,327 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 06:44:32,327 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 06:44:32,327 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 06:44:32,328 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 06:44:32,328 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 06:44:32,328 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_trylock [2022-12-14 06:44:32,329 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 06:44:32,329 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 06:44:32,329 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 06:44:32,330 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 06:44:32,330 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 06:44:32,330 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 06:44:32,330 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 06:44:32,331 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 06:44:32,331 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-12-14 06:44:32,336 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 06:44:32,336 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:44:32,337 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 06:44:32,337 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 06:44:32,338 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:44:32,339 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:44:32,341 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 06:44:32,342 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:44:32,342 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:44:32,348 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:44:32,349 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:44:32,350 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:32,352 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:32,352 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:32,353 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:32,353 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:44:32,357 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 06:44:32,357 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:44:32,358 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 06:44:32,363 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 06:44:32,364 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 06:44:32,366 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 06:44:32,367 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 06:44:32,368 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 06:44:32,368 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 06:44:32,380 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 06:44:32,380 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 06:44:32,381 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 06:44:32,381 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 06:44:32,381 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 06:44:32,382 WARN L623 FunctionHandler]: Unknown extern function device_set_wakeup_enable [2022-12-14 06:44:32,383 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-12-14 06:44:32,386 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 06:44:32,386 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 06:44:32,387 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 06:44:32,403 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_33ba1645-d003-4340-bdda-26728a739319/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508632,508645] [2022-12-14 06:44:32,404 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_33ba1645-d003-4340-bdda-26728a739319/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508801,508814] [2022-12-14 06:44:32,404 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_33ba1645-d003-4340-bdda-26728a739319/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508968,508981] [2022-12-14 06:44:32,404 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_33ba1645-d003-4340-bdda-26728a739319/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[509136,509149] [2022-12-14 06:44:32,405 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 06:44:32,406 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 06:44:32,407 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 06:44:32,407 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 06:44:32,408 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 06:44:32,409 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 06:44:32,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:44:32,627 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:44:32,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:44:32 WrapperNode [2022-12-14 06:44:32,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:44:32,629 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:44:32,629 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:44:32,629 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:44:32,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:44:32" (1/1) ... [2022-12-14 06:44:32,713 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:44:32" (1/1) ... [2022-12-14 06:44:32,880 INFO L138 Inliner]: procedures = 678, calls = 4011, calls flagged for inlining = 356, calls inlined = 330, statements flattened = 10046 [2022-12-14 06:44:32,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:44:32,881 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:44:32,881 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:44:32,881 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:44:32,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:44:32" (1/1) ... [2022-12-14 06:44:32,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:44:32" (1/1) ... [2022-12-14 06:44:32,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:44:32" (1/1) ... [2022-12-14 06:44:32,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:44:32" (1/1) ... [2022-12-14 06:44:33,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:44:32" (1/1) ... [2022-12-14 06:44:33,080 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:44:32" (1/1) ... [2022-12-14 06:44:33,106 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:44:32" (1/1) ... [2022-12-14 06:44:33,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:44:32" (1/1) ... [2022-12-14 06:44:33,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:44:33,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:44:33,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:44:33,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:44:33,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:44:32" (1/1) ... [2022-12-14 06:44:33,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:44:33,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ba1645-d003-4340-bdda-26728a739319/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:44:33,192 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ba1645-d003-4340-bdda-26728a739319/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:44:33,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ba1645-d003-4340-bdda-26728a739319/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:44:33,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_93 [2022-12-14 06:44:33,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_93 [2022-12-14 06:44:33,220 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-12-14 06:44:33,220 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-12-14 06:44:33,220 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-12-14 06:44:33,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-12-14 06:44:33,220 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_core [2022-12-14 06:44:33,220 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_core [2022-12-14 06:44:33,220 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-12-14 06:44:33,220 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-12-14 06:44:33,220 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_post_phy_linkchg [2022-12-14 06:44:33,220 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_post_phy_linkchg [2022-12-14 06:44:33,220 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-12-14 06:44:33,220 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-12-14 06:44:33,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 06:44:33,220 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 06:44:33,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_80 [2022-12-14 06:44:33,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_80 [2022-12-14 06:44:33,220 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-12-14 06:44:33,220 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-12-14 06:44:33,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 06:44:33,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 06:44:33,221 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_rx_ring [2022-12-14 06:44:33,221 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_rx_ring [2022-12-14 06:44:33,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 06:44:33,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 06:44:33,221 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-12-14 06:44:33,221 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-12-14 06:44:33,221 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-12-14 06:44:33,221 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-12-14 06:44:33,221 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-12-14 06:44:33,221 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-12-14 06:44:33,221 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_current_addr [2022-12-14 06:44:33,221 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_current_addr [2022-12-14 06:44:33,221 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-12-14 06:44:33,221 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-12-14 06:44:33,221 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_mac [2022-12-14 06:44:33,221 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_mac [2022-12-14 06:44:33,221 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_irq_disable [2022-12-14 06:44:33,221 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_irq_disable [2022-12-14 06:44:33,221 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_stop_phy_polling [2022-12-14 06:44:33,221 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_stop_phy_polling [2022-12-14 06:44:33,221 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-12-14 06:44:33,222 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-12-14 06:44:33,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 06:44:33,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 06:44:33,222 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-12-14 06:44:33,222 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-12-14 06:44:33,222 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-12-14 06:44:33,222 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-12-14 06:44:33,222 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-12-14 06:44:33,222 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-12-14 06:44:33,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 06:44:33,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 06:44:33,222 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-12-14 06:44:33,222 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-12-14 06:44:33,222 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-12-14 06:44:33,222 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-12-14 06:44:33,222 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-12-14 06:44:33,222 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-12-14 06:44:33,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 06:44:33,222 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-12-14 06:44:33,222 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-12-14 06:44:33,222 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_speed_and_duplex [2022-12-14 06:44:33,222 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_speed_and_duplex [2022-12-14 06:44:33,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_mdio_lock_of_atl1c_adapter [2022-12-14 06:44:33,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_mdio_lock_of_atl1c_adapter [2022-12-14 06:44:33,257 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-12-14 06:44:33,258 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-12-14 06:44:33,258 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_close [2022-12-14 06:44:33,258 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_close [2022-12-14 06:44:33,258 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-12-14 06:44:33,258 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-12-14 06:44:33,258 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_reg [2022-12-14 06:44:33,258 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_reg [2022-12-14 06:44:33,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 06:44:33,258 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_init [2022-12-14 06:44:33,258 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_init [2022-12-14 06:44:33,258 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_dbg [2022-12-14 06:44:33,258 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_dbg [2022-12-14 06:44:33,258 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_regs_len [2022-12-14 06:44:33,258 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_regs_len [2022-12-14 06:44:33,258 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-12-14 06:44:33,259 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-12-14 06:44:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-12-14 06:44:33,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-12-14 06:44:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_free_ring_resources [2022-12-14 06:44:33,259 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_free_ring_resources [2022-12-14 06:44:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 06:44:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 06:44:33,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 06:44:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 06:44:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-12-14 06:44:33,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-12-14 06:44:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 06:44:33,259 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 06:44:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-12-14 06:44:33,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-12-14 06:44:33,260 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-12-14 06:44:33,260 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-12-14 06:44:33,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-12-14 06:44:33,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-12-14 06:44:33,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-12-14 06:44:33,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-12-14 06:44:33,260 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-12-14 06:44:33,260 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-12-14 06:44:33,260 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_multi [2022-12-14 06:44:33,260 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_multi [2022-12-14 06:44:33,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 06:44:33,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 06:44:33,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 06:44:33,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:44:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-12-14 06:44:33,261 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-12-14 06:44:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 06:44:33,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 06:44:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-12-14 06:44:33,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-12-14 06:44:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 06:44:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_start_phy_polling [2022-12-14 06:44:33,261 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_start_phy_polling [2022-12-14 06:44:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-12-14 06:44:33,261 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-12-14 06:44:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-12-14 06:44:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 06:44:33,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 06:44:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-12-14 06:44:33,262 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-12-14 06:44:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-14 06:44:33,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-14 06:44:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-12-14 06:44:33,262 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-12-14 06:44:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_core [2022-12-14 06:44:33,262 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_core [2022-12-14 06:44:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_wait_until_idle [2022-12-14 06:44:33,262 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_wait_until_idle [2022-12-14 06:44:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-12-14 06:44:33,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-12-14 06:44:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-12-14 06:44:33,262 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-12-14 06:44:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 06:44:33,263 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 06:44:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_check_link_status [2022-12-14 06:44:33,263 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_check_link_status [2022-12-14 06:44:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-12-14 06:44:33,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-12-14 06:44:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_alloc_rx_buffer [2022-12-14 06:44:33,263 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_alloc_rx_buffer [2022-12-14 06:44:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mdio_lock_of_atl1c_adapter [2022-12-14 06:44:33,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mdio_lock_of_atl1c_adapter [2022-12-14 06:44:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_io_resume [2022-12-14 06:44:33,263 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_io_resume [2022-12-14 06:44:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_dbg [2022-12-14 06:44:33,263 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_dbg [2022-12-14 06:44:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_wait_mdio_idle [2022-12-14 06:44:33,264 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_wait_mdio_idle [2022-12-14 06:44:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-12-14 06:44:33,264 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-12-14 06:44:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-12-14 06:44:33,264 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-12-14 06:44:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_vlan_mode [2022-12-14 06:44:33,264 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_vlan_mode [2022-12-14 06:44:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_tx_buffer [2022-12-14 06:44:33,264 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_tx_buffer [2022-12-14 06:44:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_down [2022-12-14 06:44:33,264 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_down [2022-12-14 06:44:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_suspend [2022-12-14 06:44:33,264 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_suspend [2022-12-14 06:44:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:44:33,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:44:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-12-14 06:44:33,264 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-12-14 06:44:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-12-14 06:44:33,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-12-14 06:44:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-12-14 06:44:33,265 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-12-14 06:44:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 06:44:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 06:44:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 06:44:33,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 06:44:33,265 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 06:44:33,265 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 06:44:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 06:44:33,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 06:44:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-12-14 06:44:33,265 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-12-14 06:44:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-12-14 06:44:33,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-12-14 06:44:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_tx_timeout [2022-12-14 06:44:33,265 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_tx_timeout [2022-12-14 06:44:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-12-14 06:44:33,265 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-12-14 06:44:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-12-14 06:44:33,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-12-14 06:44:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_tpd [2022-12-14 06:44:33,265 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_tpd [2022-12-14 06:44:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_hw_set_mac_addr [2022-12-14 06:44:33,266 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_hw_set_mac_addr [2022-12-14 06:44:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-12-14 06:44:33,266 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-12-14 06:44:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-12-14 06:44:33,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-12-14 06:44:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-12-14 06:44:33,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-12-14 06:44:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_restart_autoneg [2022-12-14 06:44:33,266 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_restart_autoneg [2022-12-14 06:44:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_rxbufsize [2022-12-14 06:44:33,266 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_rxbufsize [2022-12-14 06:44:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-12-14 06:44:33,266 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-12-14 06:44:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 06:44:33,266 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 06:44:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_free_irq [2022-12-14 06:44:33,266 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_free_irq [2022-12-14 06:44:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-12-14 06:44:33,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-12-14 06:44:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_ext [2022-12-14 06:44:33,266 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_ext [2022-12-14 06:44:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-12-14 06:44:33,266 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-12-14 06:44:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-12-14 06:44:33,267 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-12-14 06:44:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 06:44:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-12-14 06:44:33,267 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-12-14 06:44:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_nway_reset [2022-12-14 06:44:33,267 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_nway_reset [2022-12-14 06:44:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_dma_ring [2022-12-14 06:44:33,267 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_dma_ring [2022-12-14 06:44:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-12-14 06:44:33,267 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-12-14 06:44:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 06:44:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_irq_enable [2022-12-14 06:44:33,267 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_irq_enable [2022-12-14 06:44:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-12-14 06:44:33,267 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-12-14 06:44:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_eeprom_len [2022-12-14 06:44:33,267 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_eeprom_len [2022-12-14 06:44:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 06:44:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-12-14 06:44:33,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-12-14 06:44:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-12-14 06:44:33,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-12-14 06:44:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_check_eeprom_exist [2022-12-14 06:44:33,268 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_check_eeprom_exist [2022-12-14 06:44:33,268 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-12-14 06:44:33,268 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-12-14 06:44:33,268 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-12-14 06:44:33,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-12-14 06:44:33,268 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_netpoll [2022-12-14 06:44:33,268 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_netpoll [2022-12-14 06:44:33,268 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-12-14 06:44:33,268 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-12-14 06:44:33,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 06:44:33,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 06:44:33,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-14 06:44:33,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-14 06:44:33,268 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_configure [2022-12-14 06:44:33,268 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_configure [2022-12-14 06:44:33,269 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-12-14 06:44:33,269 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-12-14 06:44:33,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_85 [2022-12-14 06:44:33,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_85 [2022-12-14 06:44:33,269 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_tx_ring [2022-12-14 06:44:33,269 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_tx_ring [2022-12-14 06:44:33,269 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_reset [2022-12-14 06:44:33,269 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_reset [2022-12-14 06:44:33,269 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_open [2022-12-14 06:44:33,269 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_open [2022-12-14 06:44:33,269 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-12-14 06:44:33,269 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-12-14 06:44:33,269 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-12-14 06:44:33,269 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-12-14 06:44:33,269 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-12-14 06:44:33,270 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-12-14 06:44:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-12-14 06:44:33,270 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-12-14 06:44:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_intr [2022-12-14 06:44:33,270 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_intr [2022-12-14 06:44:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-14 06:44:33,270 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-14 06:44:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_power_saving [2022-12-14 06:44:33,270 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_power_saving [2022-12-14 06:44:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_setup_adv [2022-12-14 06:44:33,270 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_setup_adv [2022-12-14 06:44:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-12-14 06:44:33,270 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-12-14 06:44:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 06:44:33,270 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 06:44:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_buffer [2022-12-14 06:44:33,271 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_buffer [2022-12-14 06:44:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_remove [2022-12-14 06:44:33,271 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_remove [2022-12-14 06:44:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 06:44:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 06:44:33,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 06:44:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_86 [2022-12-14 06:44:33,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_86 [2022-12-14 06:44:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-12-14 06:44:33,271 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-12-14 06:44:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-12-14 06:44:33,271 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-12-14 06:44:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_up [2022-12-14 06:44:33,271 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_up [2022-12-14 06:44:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-12-14 06:44:33,272 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-12-14 06:44:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_disable_l0s_l1 [2022-12-14 06:44:33,272 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_disable_l0s_l1 [2022-12-14 06:44:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_resume [2022-12-14 06:44:33,272 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_resume [2022-12-14 06:44:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-12-14 06:44:33,272 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-12-14 06:44:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_pcie [2022-12-14 06:44:33,272 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_pcie [2022-12-14 06:44:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 06:44:33,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 06:44:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-12-14 06:44:33,272 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-12-14 06:44:33,272 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 06:44:33,272 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 06:44:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_shutdown [2022-12-14 06:44:33,273 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_shutdown [2022-12-14 06:44:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_aspm [2022-12-14 06:44:33,273 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_aspm [2022-12-14 06:44:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-12-14 06:44:33,273 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-12-14 06:44:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-12-14 06:44:33,273 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-12-14 06:44:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-12-14 06:44:33,273 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-12-14 06:44:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_reg [2022-12-14 06:44:33,273 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_reg [2022-12-14 06:44:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:44:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-12-14 06:44:33,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-12-14 06:44:34,198 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:44:34,201 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:44:34,645 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 06:44:42,317 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:44:44,205 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:44:44,205 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 06:44:44,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:44:44 BoogieIcfgContainer [2022-12-14 06:44:44,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:44:44,213 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:44:44,214 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:44:44,216 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:44:44,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:44:27" (1/3) ... [2022-12-14 06:44:44,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c0388d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:44:44, skipping insertion in model container [2022-12-14 06:44:44,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:44:32" (2/3) ... [2022-12-14 06:44:44,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c0388d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:44:44, skipping insertion in model container [2022-12-14 06:44:44,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:44:44" (3/3) ... [2022-12-14 06:44:44,218 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-12-14 06:44:44,234 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:44:44,234 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-14 06:44:44,320 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:44:44,326 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;@6e219384, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:44:44,326 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-14 06:44:44,339 INFO L276 IsEmpty]: Start isEmpty. Operand has 2967 states, 1723 states have (on average 1.2391178177597215) internal successors, (2135), 1778 states have internal predecessors, (2135), 1081 states have call successors, (1081), 159 states have call predecessors, (1081), 158 states have return successors, (1074), 1065 states have call predecessors, (1074), 1074 states have call successors, (1074) [2022-12-14 06:44:44,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-14 06:44:44,347 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:44:44,347 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 06:44:44,348 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 06:44:44,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:44:44,352 INFO L85 PathProgramCache]: Analyzing trace with hash -2001853664, now seen corresponding path program 1 times [2022-12-14 06:44:44,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:44:44,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411753265] [2022-12-14 06:44:44,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:44:44,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:44:44,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:44:44,902 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 06:44:44,903 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:44:44,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411753265] [2022-12-14 06:44:44,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411753265] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:44:44,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:44:44,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:44:44,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674307446] [2022-12-14 06:44:44,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:44:44,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:44:44,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:44:44,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:44:44,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:44:44,938 INFO L87 Difference]: Start difference. First operand has 2967 states, 1723 states have (on average 1.2391178177597215) internal successors, (2135), 1778 states have internal predecessors, (2135), 1081 states have call successors, (1081), 159 states have call predecessors, (1081), 158 states have return successors, (1074), 1065 states have call predecessors, (1074), 1074 states have call successors, (1074) Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-14 06:44:47,290 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 06:44:51,676 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 06:44:54,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:44:54,118 INFO L93 Difference]: Finished difference Result 8864 states and 12986 transitions. [2022-12-14 06:44:54,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:44:54,121 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 35 [2022-12-14 06:44:54,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:44:54,173 INFO L225 Difference]: With dead ends: 8864 [2022-12-14 06:44:54,174 INFO L226 Difference]: Without dead ends: 5894 [2022-12-14 06:44:54,196 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 06:44:54,199 INFO L413 NwaCegarLoop]: 5452 mSDtfsCounter, 4263 mSDsluCounter, 14721 mSDsCounter, 0 mSdLazyCounter, 1861 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4279 SdHoareTripleChecker+Valid, 20173 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1861 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-12-14 06:44:54,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4279 Valid, 20173 Invalid, 1864 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1861 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2022-12-14 06:44:54,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5894 states. [2022-12-14 06:44:54,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5894 to 5886. [2022-12-14 06:44:54,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5886 states, 3426 states have (on average 1.2340922358435493) internal successors, (4228), 3524 states have internal predecessors, (4228), 2141 states have call successors, (2141), 317 states have call predecessors, (2141), 315 states have return successors, (2135), 2117 states have call predecessors, (2135), 2135 states have call successors, (2135) [2022-12-14 06:44:54,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5886 states to 5886 states and 8504 transitions. [2022-12-14 06:44:54,644 INFO L78 Accepts]: Start accepts. Automaton has 5886 states and 8504 transitions. Word has length 35 [2022-12-14 06:44:54,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:44:54,645 INFO L495 AbstractCegarLoop]: Abstraction has 5886 states and 8504 transitions. [2022-12-14 06:44:54,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-14 06:44:54,645 INFO L276 IsEmpty]: Start isEmpty. Operand 5886 states and 8504 transitions. [2022-12-14 06:44:54,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-12-14 06:44:54,647 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:44:54,647 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 06:44:54,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:44:54,647 INFO L420 AbstractCegarLoop]: === Iteration 2 === 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 06:44:54,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:44:54,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1034356985, now seen corresponding path program 1 times [2022-12-14 06:44:54,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:44:54,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546539965] [2022-12-14 06:44:54,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:44:54,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:44:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:44:54,990 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 06:44:54,991 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:44:54,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546539965] [2022-12-14 06:44:54,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546539965] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:44:54,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:44:54,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:44:54,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213318549] [2022-12-14 06:44:54,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:44:54,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:44:54,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:44:54,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:44:54,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:44:54,995 INFO L87 Difference]: Start difference. First operand 5886 states and 8504 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-14 06:44:58,512 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 06:45:00,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:45:03,820 WARN L539 Checker$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 06:45:06,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:45:07,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:45:07,227 INFO L93 Difference]: Finished difference Result 5900 states and 8513 transitions. [2022-12-14 06:45:07,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:45:07,228 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 40 [2022-12-14 06:45:07,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:45:07,267 INFO L225 Difference]: With dead ends: 5900 [2022-12-14 06:45:07,267 INFO L226 Difference]: Without dead ends: 5898 [2022-12-14 06:45:07,272 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 06:45:07,273 INFO L413 NwaCegarLoop]: 5444 mSDtfsCounter, 4240 mSDsluCounter, 14680 mSDsCounter, 0 mSdLazyCounter, 1860 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4254 SdHoareTripleChecker+Valid, 20124 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1860 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-12-14 06:45:07,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4254 Valid, 20124 Invalid, 1864 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1860 Invalid, 2 Unknown, 0 Unchecked, 11.9s Time] [2022-12-14 06:45:07,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5898 states. [2022-12-14 06:45:07,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5898 to 5890. [2022-12-14 06:45:07,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5890 states, 3429 states have (on average 1.2338874307378245) internal successors, (4231), 3527 states have internal predecessors, (4231), 2141 states have call successors, (2141), 318 states have call predecessors, (2141), 316 states have return successors, (2135), 2117 states have call predecessors, (2135), 2135 states have call successors, (2135) [2022-12-14 06:45:07,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5890 states to 5890 states and 8507 transitions. [2022-12-14 06:45:07,569 INFO L78 Accepts]: Start accepts. Automaton has 5890 states and 8507 transitions. Word has length 40 [2022-12-14 06:45:07,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:45:07,570 INFO L495 AbstractCegarLoop]: Abstraction has 5890 states and 8507 transitions. [2022-12-14 06:45:07,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-14 06:45:07,570 INFO L276 IsEmpty]: Start isEmpty. Operand 5890 states and 8507 transitions. [2022-12-14 06:45:07,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-12-14 06:45:07,571 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:45:07,571 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-12-14 06:45:07,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 06:45:07,571 INFO L420 AbstractCegarLoop]: === Iteration 3 === 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 06:45:07,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:45:07,572 INFO L85 PathProgramCache]: Analyzing trace with hash -439227358, now seen corresponding path program 1 times [2022-12-14 06:45:07,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:45:07,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689974189] [2022-12-14 06:45:07,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:45:07,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:45:07,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:45:07,902 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-12-14 06:45:07,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:45:07,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689974189] [2022-12-14 06:45:07,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689974189] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:45:07,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:45:07,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:45:07,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086970742] [2022-12-14 06:45:07,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:45:07,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:45:07,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:45:07,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:45:07,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:45:07,904 INFO L87 Difference]: Start difference. First operand 5890 states and 8507 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 06:45:11,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:45:13,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:45:16,500 WARN L539 Checker$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 06:45:19,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:45:21,573 WARN L539 Checker$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 06:45:21,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:45:21,971 INFO L93 Difference]: Finished difference Result 5904 states and 8516 transitions. [2022-12-14 06:45:21,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:45:21,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 51 [2022-12-14 06:45:21,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:45:21,992 INFO L225 Difference]: With dead ends: 5904 [2022-12-14 06:45:21,993 INFO L226 Difference]: Without dead ends: 5902 [2022-12-14 06:45:21,996 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 06:45:21,996 INFO L413 NwaCegarLoop]: 5433 mSDtfsCounter, 4236 mSDsluCounter, 14658 mSDsCounter, 0 mSdLazyCounter, 1859 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4249 SdHoareTripleChecker+Valid, 20091 SdHoareTripleChecker+Invalid, 1865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1859 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-12-14 06:45:21,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4249 Valid, 20091 Invalid, 1865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1859 Invalid, 4 Unknown, 0 Unchecked, 13.8s Time] [2022-12-14 06:45:22,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5902 states. [2022-12-14 06:45:22,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5902 to 5894. [2022-12-14 06:45:22,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5894 states, 3432 states have (on average 1.2336829836829837) internal successors, (4234), 3530 states have internal predecessors, (4234), 2141 states have call successors, (2141), 319 states have call predecessors, (2141), 317 states have return successors, (2135), 2117 states have call predecessors, (2135), 2135 states have call successors, (2135) [2022-12-14 06:45:22,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5894 states to 5894 states and 8510 transitions. [2022-12-14 06:45:22,271 INFO L78 Accepts]: Start accepts. Automaton has 5894 states and 8510 transitions. Word has length 51 [2022-12-14 06:45:22,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:45:22,271 INFO L495 AbstractCegarLoop]: Abstraction has 5894 states and 8510 transitions. [2022-12-14 06:45:22,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 06:45:22,271 INFO L276 IsEmpty]: Start isEmpty. Operand 5894 states and 8510 transitions. [2022-12-14 06:45:22,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-14 06:45:22,272 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:45:22,273 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:45:22,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 06:45:22,273 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 06:45:22,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:45:22,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1608728393, now seen corresponding path program 1 times [2022-12-14 06:45:22,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:45:22,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244706084] [2022-12-14 06:45:22,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:45:22,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:45:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:45:22,527 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-14 06:45:22,528 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:45:22,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244706084] [2022-12-14 06:45:22,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244706084] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:45:22,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:45:22,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:45:22,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155663700] [2022-12-14 06:45:22,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:45:22,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:45:22,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:45:22,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:45:22,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:45:22,530 INFO L87 Difference]: Start difference. First operand 5894 states and 8510 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 06:45:25,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:45:27,063 WARN L539 Checker$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 06:45:30,956 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 06:45:33,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:45:33,036 INFO L93 Difference]: Finished difference Result 5908 states and 8519 transitions. [2022-12-14 06:45:33,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:45:33,036 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 56 [2022-12-14 06:45:33,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:45:33,058 INFO L225 Difference]: With dead ends: 5908 [2022-12-14 06:45:33,058 INFO L226 Difference]: Without dead ends: 5906 [2022-12-14 06:45:33,061 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 06:45:33,062 INFO L413 NwaCegarLoop]: 5449 mSDtfsCounter, 4236 mSDsluCounter, 14690 mSDsCounter, 0 mSdLazyCounter, 1860 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4248 SdHoareTripleChecker+Valid, 20139 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1860 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:45:33,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4248 Valid, 20139 Invalid, 1864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1860 Invalid, 2 Unknown, 0 Unchecked, 10.2s Time] [2022-12-14 06:45:33,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5906 states. [2022-12-14 06:45:33,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5906 to 5898. [2022-12-14 06:45:33,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5898 states, 3435 states have (on average 1.2334788937409025) internal successors, (4237), 3533 states have internal predecessors, (4237), 2141 states have call successors, (2141), 320 states have call predecessors, (2141), 318 states have return successors, (2135), 2117 states have call predecessors, (2135), 2135 states have call successors, (2135) [2022-12-14 06:45:33,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5898 states to 5898 states and 8513 transitions. [2022-12-14 06:45:33,361 INFO L78 Accepts]: Start accepts. Automaton has 5898 states and 8513 transitions. Word has length 56 [2022-12-14 06:45:33,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:45:33,361 INFO L495 AbstractCegarLoop]: Abstraction has 5898 states and 8513 transitions. [2022-12-14 06:45:33,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 06:45:33,361 INFO L276 IsEmpty]: Start isEmpty. Operand 5898 states and 8513 transitions. [2022-12-14 06:45:33,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-12-14 06:45:33,362 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:45:33,362 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 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] [2022-12-14 06:45:33,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 06:45:33,363 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 06:45:33,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:45:33,363 INFO L85 PathProgramCache]: Analyzing trace with hash -895366688, now seen corresponding path program 1 times [2022-12-14 06:45:33,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:45:33,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693041668] [2022-12-14 06:45:33,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:45:33,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:45:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:45:33,578 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-14 06:45:33,578 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:45:33,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693041668] [2022-12-14 06:45:33,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693041668] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:45:33,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:45:33,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:45:33,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948136806] [2022-12-14 06:45:33,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:45:33,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:45:33,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:45:33,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:45:33,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:45:33,580 INFO L87 Difference]: Start difference. First operand 5898 states and 8513 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 06:45:36,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:45:37,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:45:40,526 WARN L539 Checker$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 06:45:42,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:45:42,432 INFO L93 Difference]: Finished difference Result 5912 states and 8522 transitions. [2022-12-14 06:45:42,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:45:42,433 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 55 [2022-12-14 06:45:42,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:45:42,452 INFO L225 Difference]: With dead ends: 5912 [2022-12-14 06:45:42,452 INFO L226 Difference]: Without dead ends: 5910 [2022-12-14 06:45:42,455 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 06:45:42,455 INFO L413 NwaCegarLoop]: 5438 mSDtfsCounter, 4240 mSDsluCounter, 14668 mSDsCounter, 0 mSdLazyCounter, 1861 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4251 SdHoareTripleChecker+Valid, 20106 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1861 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-12-14 06:45:42,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4251 Valid, 20106 Invalid, 1864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1861 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2022-12-14 06:45:42,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5910 states. [2022-12-14 06:45:42,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5910 to 5902. [2022-12-14 06:45:42,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5902 states, 3438 states have (on average 1.2332751599767307) internal successors, (4240), 3536 states have internal predecessors, (4240), 2141 states have call successors, (2141), 321 states have call predecessors, (2141), 319 states have return successors, (2135), 2117 states have call predecessors, (2135), 2135 states have call successors, (2135) [2022-12-14 06:45:42,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5902 states to 5902 states and 8516 transitions. [2022-12-14 06:45:42,717 INFO L78 Accepts]: Start accepts. Automaton has 5902 states and 8516 transitions. Word has length 55 [2022-12-14 06:45:42,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:45:42,717 INFO L495 AbstractCegarLoop]: Abstraction has 5902 states and 8516 transitions. [2022-12-14 06:45:42,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 06:45:42,718 INFO L276 IsEmpty]: Start isEmpty. Operand 5902 states and 8516 transitions. [2022-12-14 06:45:42,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-14 06:45:42,719 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:45:42,719 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:45:42,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 06:45:42,719 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 06:45:42,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:45:42,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1979953321, now seen corresponding path program 1 times [2022-12-14 06:45:42,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:45:42,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987618394] [2022-12-14 06:45:42,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:45:42,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:45:42,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:45:42,919 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 06:45:42,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:45:42,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987618394] [2022-12-14 06:45:42,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987618394] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:45:42,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:45:42,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:45:42,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18340617] [2022-12-14 06:45:42,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:45:42,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:45:42,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:45:42,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:45:42,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:45:42,921 INFO L87 Difference]: Start difference. First operand 5902 states and 8516 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 06:45:45,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:45:47,460 WARN L539 Checker$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 06:45:50,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:45:53,279 WARN L539 Checker$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 06:45:53,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:45:53,731 INFO L93 Difference]: Finished difference Result 5916 states and 8525 transitions. [2022-12-14 06:45:53,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:45:53,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 66 [2022-12-14 06:45:53,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:45:53,748 INFO L225 Difference]: With dead ends: 5916 [2022-12-14 06:45:53,748 INFO L226 Difference]: Without dead ends: 5914 [2022-12-14 06:45:53,750 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 06:45:53,750 INFO L413 NwaCegarLoop]: 5433 mSDtfsCounter, 4236 mSDsluCounter, 14658 mSDsCounter, 0 mSdLazyCounter, 1861 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4246 SdHoareTripleChecker+Valid, 20091 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1861 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-12-14 06:45:53,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4246 Valid, 20091 Invalid, 1864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1861 Invalid, 1 Unknown, 0 Unchecked, 10.6s Time] [2022-12-14 06:45:53,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5914 states. [2022-12-14 06:45:53,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5914 to 5906. [2022-12-14 06:45:53,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5906 states, 3441 states have (on average 1.2330717814588783) internal successors, (4243), 3539 states have internal predecessors, (4243), 2141 states have call successors, (2141), 322 states have call predecessors, (2141), 320 states have return successors, (2135), 2117 states have call predecessors, (2135), 2135 states have call successors, (2135) [2022-12-14 06:45:54,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5906 states to 5906 states and 8519 transitions. [2022-12-14 06:45:54,011 INFO L78 Accepts]: Start accepts. Automaton has 5906 states and 8519 transitions. Word has length 66 [2022-12-14 06:45:54,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:45:54,011 INFO L495 AbstractCegarLoop]: Abstraction has 5906 states and 8519 transitions. [2022-12-14 06:45:54,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 06:45:54,012 INFO L276 IsEmpty]: Start isEmpty. Operand 5906 states and 8519 transitions. [2022-12-14 06:45:54,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-14 06:45:54,012 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:45:54,012 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 3, 3, 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] [2022-12-14 06:45:54,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 06:45:54,013 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 06:45:54,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:45:54,013 INFO L85 PathProgramCache]: Analyzing trace with hash 107188544, now seen corresponding path program 1 times [2022-12-14 06:45:54,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:45:54,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448659176] [2022-12-14 06:45:54,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:45:54,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:45:54,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:45:54,206 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-12-14 06:45:54,206 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:45:54,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448659176] [2022-12-14 06:45:54,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448659176] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:45:54,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:45:54,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:45:54,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195326197] [2022-12-14 06:45:54,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:45:54,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:45:54,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:45:54,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:45:54,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:45:54,208 INFO L87 Difference]: Start difference. First operand 5906 states and 8519 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 06:45:57,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:46:01,289 WARN L539 Checker$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 06:46:02,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:02,255 INFO L93 Difference]: Finished difference Result 8857 states and 12760 transitions. [2022-12-14 06:46:02,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:46:02,256 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 65 [2022-12-14 06:46:02,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:02,291 INFO L225 Difference]: With dead ends: 8857 [2022-12-14 06:46:02,291 INFO L226 Difference]: Without dead ends: 8855 [2022-12-14 06:46:02,297 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 06:46:02,298 INFO L413 NwaCegarLoop]: 5800 mSDtfsCounter, 4217 mSDsluCounter, 15392 mSDsCounter, 0 mSdLazyCounter, 2103 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4226 SdHoareTripleChecker+Valid, 21192 SdHoareTripleChecker+Invalid, 2107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2103 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:02,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4226 Valid, 21192 Invalid, 2107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2103 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-12-14 06:46:02,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8855 states. [2022-12-14 06:46:02,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8855 to 8845. [2022-12-14 06:46:02,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8845 states, 5158 states have (on average 1.232842186894145) internal successors, (6359), 5304 states have internal predecessors, (6359), 3201 states have call successors, (3201), 485 states have call predecessors, (3201), 482 states have return successors, (3192), 3164 states have call predecessors, (3192), 3192 states have call successors, (3192) [2022-12-14 06:46:02,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8845 states to 8845 states and 12752 transitions. [2022-12-14 06:46:02,835 INFO L78 Accepts]: Start accepts. Automaton has 8845 states and 12752 transitions. Word has length 65 [2022-12-14 06:46:02,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:02,835 INFO L495 AbstractCegarLoop]: Abstraction has 8845 states and 12752 transitions. [2022-12-14 06:46:02,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 06:46:02,835 INFO L276 IsEmpty]: Start isEmpty. Operand 8845 states and 12752 transitions. [2022-12-14 06:46:02,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-14 06:46:02,836 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:02,836 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:46:02,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 06:46:02,836 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 06:46:02,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:02,836 INFO L85 PathProgramCache]: Analyzing trace with hash -173816329, now seen corresponding path program 1 times [2022-12-14 06:46:02,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:02,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158849400] [2022-12-14 06:46:02,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:02,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:02,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:03,045 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-12-14 06:46:03,045 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:03,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158849400] [2022-12-14 06:46:03,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158849400] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:03,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:03,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:46:03,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047443341] [2022-12-14 06:46:03,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:03,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:46:03,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:03,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:46:03,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:46:03,047 INFO L87 Difference]: Start difference. First operand 8845 states and 12752 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 06:46:06,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:46:10,468 WARN L539 Checker$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 06:46:13,689 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 06:46:14,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:14,215 INFO L93 Difference]: Finished difference Result 8863 states and 12765 transitions. [2022-12-14 06:46:14,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:46:14,215 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 76 [2022-12-14 06:46:14,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:14,238 INFO L225 Difference]: With dead ends: 8863 [2022-12-14 06:46:14,238 INFO L226 Difference]: Without dead ends: 8861 [2022-12-14 06:46:14,241 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 06:46:14,241 INFO L413 NwaCegarLoop]: 5449 mSDtfsCounter, 4236 mSDsluCounter, 14690 mSDsCounter, 0 mSdLazyCounter, 1860 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4244 SdHoareTripleChecker+Valid, 20139 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1860 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:14,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4244 Valid, 20139 Invalid, 1864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1860 Invalid, 2 Unknown, 0 Unchecked, 10.8s Time] [2022-12-14 06:46:14,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8861 states. [2022-12-14 06:46:14,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8861 to 8853. [2022-12-14 06:46:14,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8853 states, 5164 states have (on average 1.232571649883811) internal successors, (6365), 5310 states have internal predecessors, (6365), 3201 states have call successors, (3201), 487 states have call predecessors, (3201), 484 states have return successors, (3192), 3164 states have call predecessors, (3192), 3192 states have call successors, (3192) [2022-12-14 06:46:14,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8853 states to 8853 states and 12758 transitions. [2022-12-14 06:46:14,776 INFO L78 Accepts]: Start accepts. Automaton has 8853 states and 12758 transitions. Word has length 76 [2022-12-14 06:46:14,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:14,776 INFO L495 AbstractCegarLoop]: Abstraction has 8853 states and 12758 transitions. [2022-12-14 06:46:14,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 06:46:14,776 INFO L276 IsEmpty]: Start isEmpty. Operand 8853 states and 12758 transitions. [2022-12-14 06:46:14,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-14 06:46:14,777 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:14,777 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 3, 3, 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] [2022-12-14 06:46:14,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 06:46:14,777 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 06:46:14,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:14,778 INFO L85 PathProgramCache]: Analyzing trace with hash 67981472, now seen corresponding path program 1 times [2022-12-14 06:46:14,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:14,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832105791] [2022-12-14 06:46:14,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:14,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:14,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:14,962 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-12-14 06:46:14,963 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:14,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832105791] [2022-12-14 06:46:14,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832105791] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:14,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:14,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:46:14,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134277286] [2022-12-14 06:46:14,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:14,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:46:14,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:14,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:46:14,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:46:14,965 INFO L87 Difference]: Start difference. First operand 8853 states and 12758 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 06:46:18,932 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 06:46:22,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:46:24,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:24,624 INFO L93 Difference]: Finished difference Result 11893 states and 17132 transitions. [2022-12-14 06:46:24,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:46:24,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 75 [2022-12-14 06:46:24,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:24,659 INFO L225 Difference]: With dead ends: 11893 [2022-12-14 06:46:24,659 INFO L226 Difference]: Without dead ends: 11891 [2022-12-14 06:46:24,664 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 06:46:24,664 INFO L413 NwaCegarLoop]: 5473 mSDtfsCounter, 4208 mSDsluCounter, 14584 mSDsCounter, 0 mSdLazyCounter, 1847 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4215 SdHoareTripleChecker+Valid, 20057 SdHoareTripleChecker+Invalid, 1851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1847 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:24,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4215 Valid, 20057 Invalid, 1851 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1847 Invalid, 1 Unknown, 0 Unchecked, 9.1s Time] [2022-12-14 06:46:24,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11891 states. [2022-12-14 06:46:25,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11891 to 11882. [2022-12-14 06:46:25,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11882 states, 6947 states have (on average 1.233338131567583) internal successors, (8568), 7147 states have internal predecessors, (8568), 4263 states have call successors, (4263), 675 states have call predecessors, (4263), 668 states have return successors, (4292), 4205 states have call predecessors, (4292), 4251 states have call successors, (4292) [2022-12-14 06:46:25,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11882 states to 11882 states and 17123 transitions. [2022-12-14 06:46:25,367 INFO L78 Accepts]: Start accepts. Automaton has 11882 states and 17123 transitions. Word has length 75 [2022-12-14 06:46:25,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:25,368 INFO L495 AbstractCegarLoop]: Abstraction has 11882 states and 17123 transitions. [2022-12-14 06:46:25,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 06:46:25,368 INFO L276 IsEmpty]: Start isEmpty. Operand 11882 states and 17123 transitions. [2022-12-14 06:46:25,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-14 06:46:25,369 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:25,369 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:46:25,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 06:46:25,369 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 06:46:25,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:25,369 INFO L85 PathProgramCache]: Analyzing trace with hash -665770857, now seen corresponding path program 1 times [2022-12-14 06:46:25,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:25,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576776568] [2022-12-14 06:46:25,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:25,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:25,600 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-12-14 06:46:25,600 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:25,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576776568] [2022-12-14 06:46:25,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576776568] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:25,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:25,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:46:25,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730232679] [2022-12-14 06:46:25,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:25,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:46:25,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:25,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:46:25,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:46:25,602 INFO L87 Difference]: Start difference. First operand 11882 states and 17123 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 06:46:29,095 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 06:46:30,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:46:34,187 WARN L539 Checker$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 06:46:36,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:36,325 INFO L93 Difference]: Finished difference Result 11900 states and 17136 transitions. [2022-12-14 06:46:36,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:46:36,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 86 [2022-12-14 06:46:36,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:36,360 INFO L225 Difference]: With dead ends: 11900 [2022-12-14 06:46:36,360 INFO L226 Difference]: Without dead ends: 11898 [2022-12-14 06:46:36,365 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 06:46:36,365 INFO L413 NwaCegarLoop]: 5447 mSDtfsCounter, 4236 mSDsluCounter, 14686 mSDsCounter, 0 mSdLazyCounter, 1858 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4242 SdHoareTripleChecker+Valid, 20133 SdHoareTripleChecker+Invalid, 1861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1858 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:36,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4242 Valid, 20133 Invalid, 1861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1858 Invalid, 1 Unknown, 0 Unchecked, 10.2s Time] [2022-12-14 06:46:36,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11898 states. [2022-12-14 06:46:37,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11898 to 11890. [2022-12-14 06:46:37,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11890 states, 6953 states have (on average 1.233136775492593) internal successors, (8574), 7153 states have internal predecessors, (8574), 4263 states have call successors, (4263), 677 states have call predecessors, (4263), 670 states have return successors, (4292), 4205 states have call predecessors, (4292), 4251 states have call successors, (4292) [2022-12-14 06:46:37,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11890 states to 11890 states and 17129 transitions. [2022-12-14 06:46:37,083 INFO L78 Accepts]: Start accepts. Automaton has 11890 states and 17129 transitions. Word has length 86 [2022-12-14 06:46:37,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:37,084 INFO L495 AbstractCegarLoop]: Abstraction has 11890 states and 17129 transitions. [2022-12-14 06:46:37,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 06:46:37,084 INFO L276 IsEmpty]: Start isEmpty. Operand 11890 states and 17129 transitions. [2022-12-14 06:46:37,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-14 06:46:37,085 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:37,085 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:46:37,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 06:46:37,085 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 06:46:37,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:37,085 INFO L85 PathProgramCache]: Analyzing trace with hash 2052506720, now seen corresponding path program 1 times [2022-12-14 06:46:37,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:37,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688190922] [2022-12-14 06:46:37,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:37,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:37,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:37,630 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-12-14 06:46:37,630 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:37,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688190922] [2022-12-14 06:46:37,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688190922] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:37,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:37,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:46:37,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499181026] [2022-12-14 06:46:37,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:37,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:46:37,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:37,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:46:37,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:46:37,632 INFO L87 Difference]: Start difference. First operand 11890 states and 17129 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 06:46:41,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:46:45,173 WARN L539 Checker$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 06:46:47,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:47,591 INFO L93 Difference]: Finished difference Result 11899 states and 17134 transitions. [2022-12-14 06:46:47,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:46:47,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 103 [2022-12-14 06:46:47,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:47,622 INFO L225 Difference]: With dead ends: 11899 [2022-12-14 06:46:47,622 INFO L226 Difference]: Without dead ends: 11897 [2022-12-14 06:46:47,626 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 06:46:47,626 INFO L413 NwaCegarLoop]: 5470 mSDtfsCounter, 4204 mSDsluCounter, 14599 mSDsCounter, 0 mSdLazyCounter, 1832 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4205 SdHoareTripleChecker+Valid, 20069 SdHoareTripleChecker+Invalid, 1835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1832 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:47,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4205 Valid, 20069 Invalid, 1835 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1832 Invalid, 1 Unknown, 0 Unchecked, 9.3s Time] [2022-12-14 06:46:47,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11897 states. [2022-12-14 06:46:48,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11897 to 11890. [2022-12-14 06:46:48,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11890 states, 6953 states have (on average 1.2327053070617) internal successors, (8571), 7153 states have internal predecessors, (8571), 4263 states have call successors, (4263), 677 states have call predecessors, (4263), 670 states have return successors, (4292), 4205 states have call predecessors, (4292), 4251 states have call successors, (4292) [2022-12-14 06:46:48,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11890 states to 11890 states and 17126 transitions. [2022-12-14 06:46:48,256 INFO L78 Accepts]: Start accepts. Automaton has 11890 states and 17126 transitions. Word has length 103 [2022-12-14 06:46:48,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:48,256 INFO L495 AbstractCegarLoop]: Abstraction has 11890 states and 17126 transitions. [2022-12-14 06:46:48,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 06:46:48,257 INFO L276 IsEmpty]: Start isEmpty. Operand 11890 states and 17126 transitions. [2022-12-14 06:46:48,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 06:46:48,258 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:48,258 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 3, 3, 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] [2022-12-14 06:46:48,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 06:46:48,258 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 06:46:48,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:48,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1544095744, now seen corresponding path program 1 times [2022-12-14 06:46:48,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:48,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261094929] [2022-12-14 06:46:48,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:48,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:48,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:48,473 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2022-12-14 06:46:48,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:48,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261094929] [2022-12-14 06:46:48,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261094929] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:48,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:48,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:46:48,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063976502] [2022-12-14 06:46:48,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:48,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:46:48,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:48,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:46:48,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:46:48,476 INFO L87 Difference]: Start difference. First operand 11890 states and 17126 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 06:46:51,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:46:56,270 WARN L539 Checker$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 06:46:57,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:57,488 INFO L93 Difference]: Finished difference Result 11904 states and 17136 transitions. [2022-12-14 06:46:57,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:46:57,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 85 [2022-12-14 06:46:57,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:57,524 INFO L225 Difference]: With dead ends: 11904 [2022-12-14 06:46:57,524 INFO L226 Difference]: Without dead ends: 11902 [2022-12-14 06:46:57,527 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 06:46:57,528 INFO L413 NwaCegarLoop]: 5800 mSDtfsCounter, 4215 mSDsluCounter, 15392 mSDsCounter, 0 mSdLazyCounter, 2103 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4220 SdHoareTripleChecker+Valid, 21192 SdHoareTripleChecker+Invalid, 2107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2103 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:57,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4220 Valid, 21192 Invalid, 2107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2103 Invalid, 2 Unknown, 0 Unchecked, 8.5s Time] [2022-12-14 06:46:57,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11902 states. [2022-12-14 06:46:58,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11902 to 11894. [2022-12-14 06:46:58,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11894 states, 6956 states have (on average 1.232604945370903) internal successors, (8574), 7156 states have internal predecessors, (8574), 4263 states have call successors, (4263), 678 states have call predecessors, (4263), 671 states have return successors, (4292), 4205 states have call predecessors, (4292), 4251 states have call successors, (4292) [2022-12-14 06:46:58,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11894 states to 11894 states and 17129 transitions. [2022-12-14 06:46:58,264 INFO L78 Accepts]: Start accepts. Automaton has 11894 states and 17129 transitions. Word has length 85 [2022-12-14 06:46:58,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:58,264 INFO L495 AbstractCegarLoop]: Abstraction has 11894 states and 17129 transitions. [2022-12-14 06:46:58,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 06:46:58,265 INFO L276 IsEmpty]: Start isEmpty. Operand 11894 states and 17129 transitions. [2022-12-14 06:46:58,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-14 06:46:58,266 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:58,266 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:46:58,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 06:46:58,266 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 06:46:58,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:58,267 INFO L85 PathProgramCache]: Analyzing trace with hash 834825015, now seen corresponding path program 1 times [2022-12-14 06:46:58,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:58,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401077830] [2022-12-14 06:46:58,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:58,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:58,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:58,488 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-12-14 06:46:58,488 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:58,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401077830] [2022-12-14 06:46:58,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401077830] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:58,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:58,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:46:58,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059902467] [2022-12-14 06:46:58,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:58,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:46:58,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:58,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:46:58,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:46:58,490 INFO L87 Difference]: Start difference. First operand 11894 states and 17129 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 06:47:01,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:47:05,718 WARN L539 Checker$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 06:47:06,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:47:08,458 WARN L539 Checker$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 06:47:10,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:47:13,054 WARN L539 Checker$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 06:47:14,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:47:15,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:47:15,220 INFO L93 Difference]: Finished difference Result 17582 states and 25376 transitions. [2022-12-14 06:47:15,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:47:15,220 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 96 [2022-12-14 06:47:15,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:47:15,263 INFO L225 Difference]: With dead ends: 17582 [2022-12-14 06:47:15,263 INFO L226 Difference]: Without dead ends: 17580 [2022-12-14 06:47:15,269 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 06:47:15,269 INFO L413 NwaCegarLoop]: 5802 mSDtfsCounter, 4214 mSDsluCounter, 15396 mSDsCounter, 0 mSdLazyCounter, 2107 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4218 SdHoareTripleChecker+Valid, 21198 SdHoareTripleChecker+Invalid, 2112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2107 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:47:15,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4218 Valid, 21198 Invalid, 2112 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2107 Invalid, 3 Unknown, 0 Unchecked, 16.0s Time] [2022-12-14 06:47:15,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17580 states. [2022-12-14 06:47:16,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17580 to 17566. [2022-12-14 06:47:16,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17566 states, 10271 states have (on average 1.2335702463246032) internal successors, (12670), 10572 states have internal predecessors, (12670), 6314 states have call successors, (6314), 989 states have call predecessors, (6314), 977 states have return successors, (6378), 6221 states have call predecessors, (6378), 6296 states have call successors, (6378) [2022-12-14 06:47:16,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17566 states to 17566 states and 25362 transitions. [2022-12-14 06:47:16,214 INFO L78 Accepts]: Start accepts. Automaton has 17566 states and 25362 transitions. Word has length 96 [2022-12-14 06:47:16,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:47:16,214 INFO L495 AbstractCegarLoop]: Abstraction has 17566 states and 25362 transitions. [2022-12-14 06:47:16,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 06:47:16,214 INFO L276 IsEmpty]: Start isEmpty. Operand 17566 states and 25362 transitions. [2022-12-14 06:47:16,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-12-14 06:47:16,216 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:47:16,217 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:47:16,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 06:47:16,217 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 06:47:16,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:47:16,217 INFO L85 PathProgramCache]: Analyzing trace with hash 645872770, now seen corresponding path program 1 times [2022-12-14 06:47:16,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:47:16,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127519940] [2022-12-14 06:47:16,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:47:16,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:47:16,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:47:16,400 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-12-14 06:47:16,400 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:47:16,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127519940] [2022-12-14 06:47:16,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127519940] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:47:16,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:47:16,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:47:16,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291689267] [2022-12-14 06:47:16,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:47:16,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:47:16,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:47:16,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:47:16,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:47:16,402 INFO L87 Difference]: Start difference. First operand 17566 states and 25362 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 06:47:20,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:47:23,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:47:25,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:47:26,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:47:26,075 INFO L93 Difference]: Finished difference Result 17582 states and 25374 transitions. [2022-12-14 06:47:26,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:47:26,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 101 [2022-12-14 06:47:26,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:47:26,123 INFO L225 Difference]: With dead ends: 17582 [2022-12-14 06:47:26,123 INFO L226 Difference]: Without dead ends: 17580 [2022-12-14 06:47:26,131 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 06:47:26,132 INFO L413 NwaCegarLoop]: 5447 mSDtfsCounter, 4234 mSDsluCounter, 14686 mSDsCounter, 0 mSdLazyCounter, 1858 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4237 SdHoareTripleChecker+Valid, 20133 SdHoareTripleChecker+Invalid, 1861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1858 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:47:26,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4237 Valid, 20133 Invalid, 1861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1858 Invalid, 1 Unknown, 0 Unchecked, 9.0s Time] [2022-12-14 06:47:26,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17580 states. [2022-12-14 06:47:27,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17580 to 17574. [2022-12-14 06:47:27,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17574 states, 10277 states have (on average 1.233433881482923) internal successors, (12676), 10578 states have internal predecessors, (12676), 6314 states have call successors, (6314), 991 states have call predecessors, (6314), 979 states have return successors, (6378), 6221 states have call predecessors, (6378), 6296 states have call successors, (6378) [2022-12-14 06:47:27,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17574 states to 17574 states and 25368 transitions. [2022-12-14 06:47:27,128 INFO L78 Accepts]: Start accepts. Automaton has 17574 states and 25368 transitions. Word has length 101 [2022-12-14 06:47:27,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:47:27,128 INFO L495 AbstractCegarLoop]: Abstraction has 17574 states and 25368 transitions. [2022-12-14 06:47:27,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 06:47:27,129 INFO L276 IsEmpty]: Start isEmpty. Operand 17574 states and 25368 transitions. [2022-12-14 06:47:27,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-12-14 06:47:27,130 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:47:27,131 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:47:27,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 06:47:27,131 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 06:47:27,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:47:27,131 INFO L85 PathProgramCache]: Analyzing trace with hash -332031529, now seen corresponding path program 1 times [2022-12-14 06:47:27,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:47:27,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714049209] [2022-12-14 06:47:27,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:47:27,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:47:27,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:47:27,338 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-12-14 06:47:27,339 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:47:27,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714049209] [2022-12-14 06:47:27,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714049209] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:47:27,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:47:27,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:47:27,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210296465] [2022-12-14 06:47:27,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:47:27,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:47:27,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:47:27,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:47:27,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:47:27,340 INFO L87 Difference]: Start difference. First operand 17574 states and 25368 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 06:47:29,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:47:31,457 WARN L539 Checker$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 06:47:32,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:47:36,114 WARN L539 Checker$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 06:47:38,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:47:38,950 INFO L93 Difference]: Finished difference Result 17590 states and 25380 transitions. [2022-12-14 06:47:38,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:47:38,951 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 106 [2022-12-14 06:47:38,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:47:38,990 INFO L225 Difference]: With dead ends: 17590 [2022-12-14 06:47:38,990 INFO L226 Difference]: Without dead ends: 17588 [2022-12-14 06:47:38,995 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 06:47:38,995 INFO L413 NwaCegarLoop]: 5442 mSDtfsCounter, 4234 mSDsluCounter, 14676 mSDsCounter, 0 mSdLazyCounter, 1858 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4236 SdHoareTripleChecker+Valid, 20118 SdHoareTripleChecker+Invalid, 1862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1858 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-12-14 06:47:38,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4236 Valid, 20118 Invalid, 1862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1858 Invalid, 2 Unknown, 0 Unchecked, 10.8s Time] [2022-12-14 06:47:39,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17588 states. [2022-12-14 06:47:40,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17588 to 17582. [2022-12-14 06:47:40,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17582 states, 10283 states have (on average 1.2332976757755518) internal successors, (12682), 10584 states have internal predecessors, (12682), 6314 states have call successors, (6314), 993 states have call predecessors, (6314), 981 states have return successors, (6378), 6221 states have call predecessors, (6378), 6296 states have call successors, (6378) [2022-12-14 06:47:40,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17582 states to 17582 states and 25374 transitions. [2022-12-14 06:47:40,134 INFO L78 Accepts]: Start accepts. Automaton has 17582 states and 25374 transitions. Word has length 106 [2022-12-14 06:47:40,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:47:40,134 INFO L495 AbstractCegarLoop]: Abstraction has 17582 states and 25374 transitions. [2022-12-14 06:47:40,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 06:47:40,134 INFO L276 IsEmpty]: Start isEmpty. Operand 17582 states and 25374 transitions. [2022-12-14 06:47:40,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-12-14 06:47:40,136 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:47:40,136 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:47:40,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 06:47:40,137 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 06:47:40,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:47:40,137 INFO L85 PathProgramCache]: Analyzing trace with hash 773742272, now seen corresponding path program 1 times [2022-12-14 06:47:40,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:47:40,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277361145] [2022-12-14 06:47:40,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:47:40,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:47:40,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:47:40,302 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2022-12-14 06:47:40,302 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:47:40,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277361145] [2022-12-14 06:47:40,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277361145] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:47:40,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:47:40,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:47:40,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809860580] [2022-12-14 06:47:40,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:47:40,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:47:40,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:47:40,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:47:40,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:47:40,303 INFO L87 Difference]: Start difference. First operand 17582 states and 25374 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 06:47:43,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:47:47,857 WARN L539 Checker$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 06:47:48,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:47:48,994 INFO L93 Difference]: Finished difference Result 17596 states and 25384 transitions. [2022-12-14 06:47:48,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:47:48,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 105 [2022-12-14 06:47:48,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:47:49,044 INFO L225 Difference]: With dead ends: 17596 [2022-12-14 06:47:49,044 INFO L226 Difference]: Without dead ends: 17592 [2022-12-14 06:47:49,053 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 06:47:49,053 INFO L413 NwaCegarLoop]: 5800 mSDtfsCounter, 4215 mSDsluCounter, 15392 mSDsCounter, 0 mSdLazyCounter, 2103 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4216 SdHoareTripleChecker+Valid, 21192 SdHoareTripleChecker+Invalid, 2107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2103 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:47:49,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4216 Valid, 21192 Invalid, 2107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2103 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2022-12-14 06:47:49,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17592 states. [2022-12-14 06:47:49,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17592 to 17584. [2022-12-14 06:47:49,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17584 states, 10285 states have (on average 1.2331550802139037) internal successors, (12683), 10585 states have internal predecessors, (12683), 6314 states have call successors, (6314), 994 states have call predecessors, (6314), 981 states have return successors, (6378), 6221 states have call predecessors, (6378), 6296 states have call successors, (6378) [2022-12-14 06:47:50,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17584 states to 17584 states and 25375 transitions. [2022-12-14 06:47:50,059 INFO L78 Accepts]: Start accepts. Automaton has 17584 states and 25375 transitions. Word has length 105 [2022-12-14 06:47:50,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:47:50,060 INFO L495 AbstractCegarLoop]: Abstraction has 17584 states and 25375 transitions. [2022-12-14 06:47:50,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 06:47:50,060 INFO L276 IsEmpty]: Start isEmpty. Operand 17584 states and 25375 transitions. [2022-12-14 06:47:50,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-12-14 06:47:50,062 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:47:50,062 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:47:50,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 06:47:50,062 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 06:47:50,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:47:50,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1133989769, now seen corresponding path program 1 times [2022-12-14 06:47:50,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:47:50,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869027851] [2022-12-14 06:47:50,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:47:50,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:47:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:47:50,263 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-12-14 06:47:50,264 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:47:50,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869027851] [2022-12-14 06:47:50,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869027851] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:47:50,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:47:50,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:47:50,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407473010] [2022-12-14 06:47:50,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:47:50,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:47:50,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:47:50,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:47:50,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:47:50,265 INFO L87 Difference]: Start difference. First operand 17584 states and 25375 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 06:47:52,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:47:55,065 WARN L539 Checker$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 06:47:58,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:48:00,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:48:02,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:48:04,723 WARN L539 Checker$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 06:48:07,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:48:07,415 INFO L93 Difference]: Finished difference Result 33906 states and 48856 transitions. [2022-12-14 06:48:07,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:48:07,416 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 116 [2022-12-14 06:48:07,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:48:07,540 INFO L225 Difference]: With dead ends: 33906 [2022-12-14 06:48:07,540 INFO L226 Difference]: Without dead ends: 33794 [2022-12-14 06:48:07,551 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 06:48:07,552 INFO L413 NwaCegarLoop]: 4823 mSDtfsCounter, 3938 mSDsluCounter, 13424 mSDsCounter, 0 mSdLazyCounter, 1719 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3938 SdHoareTripleChecker+Valid, 18247 SdHoareTripleChecker+Invalid, 1726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1719 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2022-12-14 06:48:07,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3938 Valid, 18247 Invalid, 1726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1719 Invalid, 4 Unknown, 0 Unchecked, 15.8s Time] [2022-12-14 06:48:07,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33794 states. [2022-12-14 06:48:09,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33794 to 33780. [2022-12-14 06:48:09,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33780 states, 19761 states have (on average 1.2334396032589443) internal successors, (24374), 20339 states have internal predecessors, (24374), 12110 states have call successors, (12110), 1929 states have call predecessors, (12110), 1905 states have return successors, (12240), 11926 states have call predecessors, (12240), 12076 states have call successors, (12240) [2022-12-14 06:48:09,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33780 states to 33780 states and 48724 transitions. [2022-12-14 06:48:09,579 INFO L78 Accepts]: Start accepts. Automaton has 33780 states and 48724 transitions. Word has length 116 [2022-12-14 06:48:09,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:48:09,579 INFO L495 AbstractCegarLoop]: Abstraction has 33780 states and 48724 transitions. [2022-12-14 06:48:09,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 06:48:09,579 INFO L276 IsEmpty]: Start isEmpty. Operand 33780 states and 48724 transitions. [2022-12-14 06:48:09,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-12-14 06:48:09,583 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:48:09,583 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:48:09,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 06:48:09,583 INFO L420 AbstractCegarLoop]: === Iteration 18 === 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 06:48:09,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:48:09,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1704568118, now seen corresponding path program 1 times [2022-12-14 06:48:09,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:48:09,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210644679] [2022-12-14 06:48:09,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:48:09,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:48:09,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:48:09,819 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-12-14 06:48:09,819 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:48:09,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210644679] [2022-12-14 06:48:09,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210644679] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:48:09,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:48:09,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:48:09,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153403171] [2022-12-14 06:48:09,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:48:09,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:48:09,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:48:09,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:48:09,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:48:09,821 INFO L87 Difference]: Start difference. First operand 33780 states and 48724 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2022-12-14 06:48:12,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:48:15,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:48:17,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:48:17,387 INFO L93 Difference]: Finished difference Result 67784 states and 99587 transitions. [2022-12-14 06:48:17,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:48:17,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) Word has length 161 [2022-12-14 06:48:17,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:48:17,521 INFO L225 Difference]: With dead ends: 67784 [2022-12-14 06:48:17,521 INFO L226 Difference]: Without dead ends: 34020 [2022-12-14 06:48:17,648 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 06:48:17,649 INFO L413 NwaCegarLoop]: 3843 mSDtfsCounter, 10 mSDsluCounter, 3836 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 7679 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-12-14 06:48:17,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 7679 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 853 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-12-14 06:48:17,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34020 states. [2022-12-14 06:48:19,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34020 to 33796. [2022-12-14 06:48:19,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33796 states, 19777 states have (on average 1.2332507458158466) internal successors, (24390), 20355 states have internal predecessors, (24390), 12110 states have call successors, (12110), 1929 states have call predecessors, (12110), 1905 states have return successors, (12240), 11926 states have call predecessors, (12240), 12076 states have call successors, (12240) [2022-12-14 06:48:19,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33796 states to 33796 states and 48740 transitions. [2022-12-14 06:48:19,754 INFO L78 Accepts]: Start accepts. Automaton has 33796 states and 48740 transitions. Word has length 161 [2022-12-14 06:48:19,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:48:19,754 INFO L495 AbstractCegarLoop]: Abstraction has 33796 states and 48740 transitions. [2022-12-14 06:48:19,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2022-12-14 06:48:19,755 INFO L276 IsEmpty]: Start isEmpty. Operand 33796 states and 48740 transitions. [2022-12-14 06:48:19,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-12-14 06:48:19,759 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:48:19,759 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:48:19,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 06:48:19,759 INFO L420 AbstractCegarLoop]: === Iteration 19 === 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 06:48:19,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:48:19,759 INFO L85 PathProgramCache]: Analyzing trace with hash 227193099, now seen corresponding path program 1 times [2022-12-14 06:48:19,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:48:19,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593098920] [2022-12-14 06:48:19,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:48:19,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:48:19,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:48:20,213 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-12-14 06:48:20,213 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:48:20,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593098920] [2022-12-14 06:48:20,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593098920] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:48:20,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:48:20,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:48:20,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55598052] [2022-12-14 06:48:20,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:48:20,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:48:20,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:48:20,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:48:20,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:48:20,215 INFO L87 Difference]: Start difference. First operand 33796 states and 48740 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 06:48:23,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:48:24,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:48:29,482 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 06:48:30,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:48:30,886 INFO L93 Difference]: Finished difference Result 34302 states and 49381 transitions. [2022-12-14 06:48:30,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:48:30,887 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 171 [2022-12-14 06:48:30,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:48:31,020 INFO L225 Difference]: With dead ends: 34302 [2022-12-14 06:48:31,020 INFO L226 Difference]: Without dead ends: 34090 [2022-12-14 06:48:31,040 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 06:48:31,041 INFO L413 NwaCegarLoop]: 3907 mSDtfsCounter, 230 mSDsluCounter, 11586 mSDsCounter, 0 mSdLazyCounter, 1735 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 15493 SdHoareTripleChecker+Invalid, 1737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1735 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:48:31,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 15493 Invalid, 1737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1735 Invalid, 1 Unknown, 0 Unchecked, 9.1s Time] [2022-12-14 06:48:31,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34090 states. [2022-12-14 06:48:32,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34090 to 34090. [2022-12-14 06:48:32,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34090 states, 19962 states have (on average 1.2319406873058811) internal successors, (24592), 20532 states have internal predecessors, (24592), 12160 states have call successors, (12160), 1988 states have call predecessors, (12160), 1964 states have return successors, (12291), 11982 states have call predecessors, (12291), 12127 states have call successors, (12291) [2022-12-14 06:48:33,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34090 states to 34090 states and 49043 transitions. [2022-12-14 06:48:33,033 INFO L78 Accepts]: Start accepts. Automaton has 34090 states and 49043 transitions. Word has length 171 [2022-12-14 06:48:33,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:48:33,033 INFO L495 AbstractCegarLoop]: Abstraction has 34090 states and 49043 transitions. [2022-12-14 06:48:33,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 06:48:33,033 INFO L276 IsEmpty]: Start isEmpty. Operand 34090 states and 49043 transitions. [2022-12-14 06:48:33,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2022-12-14 06:48:33,042 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:48:33,042 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 7, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:48:33,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 06:48:33,042 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 06:48:33,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:48:33,042 INFO L85 PathProgramCache]: Analyzing trace with hash -947586283, now seen corresponding path program 1 times [2022-12-14 06:48:33,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:48:33,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064755009] [2022-12-14 06:48:33,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:48:33,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:48:33,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:48:33,702 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2022-12-14 06:48:33,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:48:33,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064755009] [2022-12-14 06:48:33,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064755009] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:48:33,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:48:33,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:48:33,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458564997] [2022-12-14 06:48:33,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:48:33,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:48:33,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:48:33,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:48:33,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:48:33,705 INFO L87 Difference]: Start difference. First operand 34090 states and 49043 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-12-14 06:48:37,689 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 06:48:41,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:48:44,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:48:44,298 INFO L93 Difference]: Finished difference Result 34106 states and 49055 transitions. [2022-12-14 06:48:44,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:48:44,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 280 [2022-12-14 06:48:44,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:48:44,411 INFO L225 Difference]: With dead ends: 34106 [2022-12-14 06:48:44,411 INFO L226 Difference]: Without dead ends: 34104 [2022-12-14 06:48:44,427 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 06:48:44,427 INFO L413 NwaCegarLoop]: 5174 mSDtfsCounter, 4157 mSDsluCounter, 14140 mSDsCounter, 0 mSdLazyCounter, 1764 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4166 SdHoareTripleChecker+Valid, 19314 SdHoareTripleChecker+Invalid, 1768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1764 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-12-14 06:48:44,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4166 Valid, 19314 Invalid, 1768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1764 Invalid, 2 Unknown, 0 Unchecked, 9.4s Time] [2022-12-14 06:48:44,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34104 states. [2022-12-14 06:48:46,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34104 to 34098. [2022-12-14 06:48:46,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34098 states, 19968 states have (on average 1.2318709935897436) internal successors, (24598), 20538 states have internal predecessors, (24598), 12160 states have call successors, (12160), 1990 states have call predecessors, (12160), 1966 states have return successors, (12291), 11982 states have call predecessors, (12291), 12127 states have call successors, (12291) [2022-12-14 06:48:46,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34098 states to 34098 states and 49049 transitions. [2022-12-14 06:48:46,505 INFO L78 Accepts]: Start accepts. Automaton has 34098 states and 49049 transitions. Word has length 280 [2022-12-14 06:48:46,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:48:46,506 INFO L495 AbstractCegarLoop]: Abstraction has 34098 states and 49049 transitions. [2022-12-14 06:48:46,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-12-14 06:48:46,506 INFO L276 IsEmpty]: Start isEmpty. Operand 34098 states and 49049 transitions. [2022-12-14 06:48:46,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2022-12-14 06:48:46,516 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:48:46,516 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 11, 10, 10, 8, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:48:46,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 06:48:46,516 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 06:48:46,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:48:46,517 INFO L85 PathProgramCache]: Analyzing trace with hash 581767155, now seen corresponding path program 1 times [2022-12-14 06:48:46,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:48:46,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896879934] [2022-12-14 06:48:46,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:48:46,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:48:46,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:48:47,098 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 522 trivial. 0 not checked. [2022-12-14 06:48:47,098 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:48:47,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896879934] [2022-12-14 06:48:47,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896879934] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:48:47,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:48:47,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:48:47,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544620158] [2022-12-14 06:48:47,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:48:47,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:48:47,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:48:47,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:48:47,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:48:47,100 INFO L87 Difference]: Start difference. First operand 34098 states and 49049 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-12-14 06:48:49,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:48:51,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:48:55,473 WARN L539 Checker$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 06:48:58,392 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 06:48:59,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:48:59,330 INFO L93 Difference]: Finished difference Result 34114 states and 49061 transitions. [2022-12-14 06:48:59,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:48:59,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 294 [2022-12-14 06:48:59,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:48:59,433 INFO L225 Difference]: With dead ends: 34114 [2022-12-14 06:48:59,434 INFO L226 Difference]: Without dead ends: 34112 [2022-12-14 06:48:59,447 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 06:48:59,447 INFO L413 NwaCegarLoop]: 5169 mSDtfsCounter, 4161 mSDsluCounter, 14130 mSDsCounter, 0 mSdLazyCounter, 1765 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4166 SdHoareTripleChecker+Valid, 19299 SdHoareTripleChecker+Invalid, 1769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1765 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-12-14 06:48:59,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4166 Valid, 19299 Invalid, 1769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1765 Invalid, 2 Unknown, 0 Unchecked, 10.9s Time] [2022-12-14 06:48:59,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34112 states. [2022-12-14 06:49:01,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34112 to 34106. [2022-12-14 06:49:01,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34106 states, 19974 states have (on average 1.2318013417442675) internal successors, (24604), 20544 states have internal predecessors, (24604), 12160 states have call successors, (12160), 1992 states have call predecessors, (12160), 1968 states have return successors, (12291), 11982 states have call predecessors, (12291), 12127 states have call successors, (12291) [2022-12-14 06:49:01,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34106 states to 34106 states and 49055 transitions. [2022-12-14 06:49:01,579 INFO L78 Accepts]: Start accepts. Automaton has 34106 states and 49055 transitions. Word has length 294 [2022-12-14 06:49:01,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:49:01,580 INFO L495 AbstractCegarLoop]: Abstraction has 34106 states and 49055 transitions. [2022-12-14 06:49:01,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-12-14 06:49:01,580 INFO L276 IsEmpty]: Start isEmpty. Operand 34106 states and 49055 transitions. [2022-12-14 06:49:01,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-12-14 06:49:01,589 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:49:01,589 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 11, 11, 8, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:49:01,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 06:49:01,589 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 06:49:01,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:49:01,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1397560710, now seen corresponding path program 1 times [2022-12-14 06:49:01,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:49:01,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915603477] [2022-12-14 06:49:01,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:01,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:49:01,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:02,187 INFO L134 CoverageAnalysis]: Checked inductivity of 584 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 562 trivial. 0 not checked. [2022-12-14 06:49:02,187 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:49:02,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915603477] [2022-12-14 06:49:02,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915603477] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:49:02,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:49:02,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:49:02,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992132452] [2022-12-14 06:49:02,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:49:02,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:49:02,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:49:02,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:49:02,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:49:02,189 INFO L87 Difference]: Start difference. First operand 34106 states and 49055 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-12-14 06:49:04,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:49:06,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:49:07,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:49:11,223 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 06:49:14,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:49:14,279 INFO L93 Difference]: Finished difference Result 34122 states and 49067 transitions. [2022-12-14 06:49:14,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:49:14,280 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 299 [2022-12-14 06:49:14,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:49:14,389 INFO L225 Difference]: With dead ends: 34122 [2022-12-14 06:49:14,389 INFO L226 Difference]: Without dead ends: 34118 [2022-12-14 06:49:14,404 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 06:49:14,405 INFO L413 NwaCegarLoop]: 5174 mSDtfsCounter, 4161 mSDsluCounter, 14140 mSDsCounter, 0 mSdLazyCounter, 1765 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4165 SdHoareTripleChecker+Valid, 19314 SdHoareTripleChecker+Invalid, 1768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1765 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-12-14 06:49:14,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4165 Valid, 19314 Invalid, 1768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1765 Invalid, 1 Unknown, 0 Unchecked, 10.6s Time] [2022-12-14 06:49:14,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34118 states. [2022-12-14 06:49:16,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34118 to 34110. [2022-12-14 06:49:16,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34110 states, 19977 states have (on average 1.2317164739450368) internal successors, (24606), 20547 states have internal predecessors, (24606), 12160 states have call successors, (12160), 1993 states have call predecessors, (12160), 1969 states have return successors, (12291), 11982 states have call predecessors, (12291), 12127 states have call successors, (12291) [2022-12-14 06:49:17,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34110 states to 34110 states and 49057 transitions. [2022-12-14 06:49:17,093 INFO L78 Accepts]: Start accepts. Automaton has 34110 states and 49057 transitions. Word has length 299 [2022-12-14 06:49:17,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:49:17,094 INFO L495 AbstractCegarLoop]: Abstraction has 34110 states and 49057 transitions. [2022-12-14 06:49:17,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-12-14 06:49:17,094 INFO L276 IsEmpty]: Start isEmpty. Operand 34110 states and 49057 transitions. [2022-12-14 06:49:17,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-12-14 06:49:17,102 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:49:17,102 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 13, 13, 8, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:49:17,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 06:49:17,103 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 06:49:17,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:49:17,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1588195123, now seen corresponding path program 1 times [2022-12-14 06:49:17,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:49:17,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499467519] [2022-12-14 06:49:17,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:17,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:49:17,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:17,592 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 706 trivial. 0 not checked. [2022-12-14 06:49:17,592 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:49:17,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499467519] [2022-12-14 06:49:17,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499467519] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:49:17,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:49:17,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:49:17,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709915744] [2022-12-14 06:49:17,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:49:17,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:49:17,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:49:17,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:49:17,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:49:17,594 INFO L87 Difference]: Start difference. First operand 34110 states and 49057 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-12-14 06:49:19,602 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 06:49:21,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:49:24,963 WARN L539 Checker$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 06:49:28,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:49:28,052 INFO L93 Difference]: Finished difference Result 34124 states and 49067 transitions. [2022-12-14 06:49:28,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:49:28,053 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 314 [2022-12-14 06:49:28,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:49:28,159 INFO L225 Difference]: With dead ends: 34124 [2022-12-14 06:49:28,159 INFO L226 Difference]: Without dead ends: 33832 [2022-12-14 06:49:28,175 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 06:49:28,175 INFO L413 NwaCegarLoop]: 5171 mSDtfsCounter, 4161 mSDsluCounter, 14133 mSDsCounter, 0 mSdLazyCounter, 1766 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4162 SdHoareTripleChecker+Valid, 19304 SdHoareTripleChecker+Invalid, 1769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1766 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:49:28,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4162 Valid, 19304 Invalid, 1769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1766 Invalid, 1 Unknown, 0 Unchecked, 9.2s Time] [2022-12-14 06:49:28,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33832 states. [2022-12-14 06:49:30,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33832 to 33744. [2022-12-14 06:49:30,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33744 states, 19757 states have (on average 1.2318671863137116) internal successors, (24338), 20314 states have internal predecessors, (24338), 12046 states have call successors, (12046), 1959 states have call predecessors, (12046), 1937 states have return successors, (12183), 11877 states have call predecessors, (12183), 12019 states have call successors, (12183) [2022-12-14 06:49:30,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33744 states to 33744 states and 48567 transitions. [2022-12-14 06:49:30,305 INFO L78 Accepts]: Start accepts. Automaton has 33744 states and 48567 transitions. Word has length 314 [2022-12-14 06:49:30,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:49:30,306 INFO L495 AbstractCegarLoop]: Abstraction has 33744 states and 48567 transitions. [2022-12-14 06:49:30,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-12-14 06:49:30,306 INFO L276 IsEmpty]: Start isEmpty. Operand 33744 states and 48567 transitions. [2022-12-14 06:49:30,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 896 [2022-12-14 06:49:30,325 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:49:30,326 INFO L195 NwaCegarLoop]: trace histogram [26, 23, 20, 13, 13, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:49:30,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 06:49:30,326 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_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 06:49:30,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:49:30,327 INFO L85 PathProgramCache]: Analyzing trace with hash -2081223422, now seen corresponding path program 1 times [2022-12-14 06:49:30,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:49:30,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368488391] [2022-12-14 06:49:30,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:30,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:49:30,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:31,244 INFO L134 CoverageAnalysis]: Checked inductivity of 2774 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2774 trivial. 0 not checked. [2022-12-14 06:49:31,244 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:49:31,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368488391] [2022-12-14 06:49:31,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368488391] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:49:31,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:49:31,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:49:31,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960551179] [2022-12-14 06:49:31,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:49:31,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:49:31,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:49:31,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:49:31,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:49:31,248 INFO L87 Difference]: Start difference. First operand 33744 states and 48567 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 2 states have call successors, (117), 2 states have call predecessors, (117), 1 states have return successors, (116), 2 states have call predecessors, (116), 2 states have call successors, (116) [2022-12-14 06:49:36,199 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 06:49:37,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:49:37,634 INFO L93 Difference]: Finished difference Result 56019 states and 80995 transitions. [2022-12-14 06:49:37,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:49:37,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 2 states have call successors, (117), 2 states have call predecessors, (117), 1 states have return successors, (116), 2 states have call predecessors, (116), 2 states have call successors, (116) Word has length 895 [2022-12-14 06:49:37,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:49:37,711 INFO L225 Difference]: With dead ends: 56019 [2022-12-14 06:49:37,712 INFO L226 Difference]: Without dead ends: 22289 [2022-12-14 06:49:37,798 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 06:49:37,798 INFO L413 NwaCegarLoop]: 4727 mSDtfsCounter, 878 mSDsluCounter, 3872 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 8599 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:49:37,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 8599 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 917 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-12-14 06:49:37,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22289 states. [2022-12-14 06:49:39,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22289 to 18821. [2022-12-14 06:49:39,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18821 states, 10999 states have (on average 1.2278388944449496) internal successors, (13505), 11297 states have internal predecessors, (13505), 6699 states have call successors, (6699), 1131 states have call predecessors, (6699), 1119 states have return successors, (6766), 6615 states have call predecessors, (6766), 6684 states have call successors, (6766) [2022-12-14 06:49:39,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18821 states to 18821 states and 26970 transitions. [2022-12-14 06:49:39,177 INFO L78 Accepts]: Start accepts. Automaton has 18821 states and 26970 transitions. Word has length 895 [2022-12-14 06:49:39,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:49:39,178 INFO L495 AbstractCegarLoop]: Abstraction has 18821 states and 26970 transitions. [2022-12-14 06:49:39,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 2 states have call successors, (117), 2 states have call predecessors, (117), 1 states have return successors, (116), 2 states have call predecessors, (116), 2 states have call successors, (116) [2022-12-14 06:49:39,178 INFO L276 IsEmpty]: Start isEmpty. Operand 18821 states and 26970 transitions. [2022-12-14 06:49:39,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 901 [2022-12-14 06:49:39,196 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:49:39,197 INFO L195 NwaCegarLoop]: trace histogram [26, 23, 20, 13, 13, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:49:39,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 06:49:39,197 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_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 06:49:39,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:49:39,197 INFO L85 PathProgramCache]: Analyzing trace with hash -868369015, now seen corresponding path program 1 times [2022-12-14 06:49:39,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:49:39,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119514839] [2022-12-14 06:49:39,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:39,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:49:39,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:40,140 INFO L134 CoverageAnalysis]: Checked inductivity of 2774 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2774 trivial. 0 not checked. [2022-12-14 06:49:40,140 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:49:40,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119514839] [2022-12-14 06:49:40,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119514839] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:49:40,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:49:40,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:49:40,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539767948] [2022-12-14 06:49:40,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:49:40,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:49:40,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:49:40,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:49:40,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:49:40,141 INFO L87 Difference]: Start difference. First operand 18821 states and 26970 transitions. Second operand has 4 states, 4 states have (on average 66.5) internal successors, (266), 4 states have internal predecessors, (266), 2 states have call successors, (117), 2 states have call predecessors, (117), 1 states have return successors, (116), 2 states have call predecessors, (116), 2 states have call successors, (116) [2022-12-14 06:49:43,253 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 06:49:47,304 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 06:49:48,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:49:48,547 INFO L93 Difference]: Finished difference Result 39815 states and 57865 transitions. [2022-12-14 06:49:48,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:49:48,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 66.5) internal successors, (266), 4 states have internal predecessors, (266), 2 states have call successors, (117), 2 states have call predecessors, (117), 1 states have return successors, (116), 2 states have call predecessors, (116), 2 states have call successors, (116) Word has length 900 [2022-12-14 06:49:48,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:49:48,619 INFO L225 Difference]: With dead ends: 39815 [2022-12-14 06:49:48,620 INFO L226 Difference]: Without dead ends: 22859 [2022-12-14 06:49:48,691 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 06:49:48,691 INFO L413 NwaCegarLoop]: 4595 mSDtfsCounter, 616 mSDsluCounter, 8495 mSDsCounter, 0 mSdLazyCounter, 1532 mSolverCounterSat, 185 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 13090 SdHoareTripleChecker+Invalid, 1719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 1532 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:49:48,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [803 Valid, 13090 Invalid, 1719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 1532 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-12-14 06:49:48,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22859 states. [2022-12-14 06:49:49,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22859 to 18833. [2022-12-14 06:49:50,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18833 states, 11011 states have (on average 1.227590591226955) internal successors, (13517), 11309 states have internal predecessors, (13517), 6699 states have call successors, (6699), 1131 states have call predecessors, (6699), 1119 states have return successors, (6766), 6615 states have call predecessors, (6766), 6684 states have call successors, (6766) [2022-12-14 06:49:50,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18833 states to 18833 states and 26982 transitions. [2022-12-14 06:49:50,074 INFO L78 Accepts]: Start accepts. Automaton has 18833 states and 26982 transitions. Word has length 900 [2022-12-14 06:49:50,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:49:50,074 INFO L495 AbstractCegarLoop]: Abstraction has 18833 states and 26982 transitions. [2022-12-14 06:49:50,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.5) internal successors, (266), 4 states have internal predecessors, (266), 2 states have call successors, (117), 2 states have call predecessors, (117), 1 states have return successors, (116), 2 states have call predecessors, (116), 2 states have call successors, (116) [2022-12-14 06:49:50,074 INFO L276 IsEmpty]: Start isEmpty. Operand 18833 states and 26982 transitions. [2022-12-14 06:49:50,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 926 [2022-12-14 06:49:50,116 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:49:50,117 INFO L195 NwaCegarLoop]: trace histogram [26, 23, 20, 13, 13, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:49:50,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-14 06:49:50,117 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_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 06:49:50,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:49:50,118 INFO L85 PathProgramCache]: Analyzing trace with hash 882540791, now seen corresponding path program 1 times [2022-12-14 06:49:50,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:49:50,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342253449] [2022-12-14 06:49:50,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:50,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:49:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:51,037 INFO L134 CoverageAnalysis]: Checked inductivity of 2778 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2772 trivial. 0 not checked. [2022-12-14 06:49:51,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:49:51,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342253449] [2022-12-14 06:49:51,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342253449] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:49:51,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761814507] [2022-12-14 06:49:51,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:51,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:49:51,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ba1645-d003-4340-bdda-26728a739319/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:49:51,039 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ba1645-d003-4340-bdda-26728a739319/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:49:51,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ba1645-d003-4340-bdda-26728a739319/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 06:49:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:52,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 8238 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 06:49:52,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:49:52,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2778 backedges. 839 proven. 0 refuted. 0 times theorem prover too weak. 1939 trivial. 0 not checked. [2022-12-14 06:49:52,868 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:49:52,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761814507] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:49:52,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 06:49:52,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-12-14 06:49:52,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820541568] [2022-12-14 06:49:52,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:49:52,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:49:52,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:49:52,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:49:52,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:49:52,873 INFO L87 Difference]: Start difference. First operand 18833 states and 26982 transitions. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 2 states have call successors, (129), 2 states have call predecessors, (129), 2 states have return successors, (128), 2 states have call predecessors, (128), 2 states have call successors, (128) [2022-12-14 06:49:55,940 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 06:49:59,341 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 06:50:00,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:50:00,161 INFO L93 Difference]: Finished difference Result 37757 states and 54562 transitions. [2022-12-14 06:50:00,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:50:00,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 2 states have call successors, (129), 2 states have call predecessors, (129), 2 states have return successors, (128), 2 states have call predecessors, (128), 2 states have call successors, (128) Word has length 925 [2022-12-14 06:50:00,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:50:00,219 INFO L225 Difference]: With dead ends: 37757 [2022-12-14 06:50:00,220 INFO L226 Difference]: Without dead ends: 18938 [2022-12-14 06:50:00,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 927 GetRequests, 925 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:50:00,266 INFO L413 NwaCegarLoop]: 3838 mSDtfsCounter, 10 mSDsluCounter, 3831 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 7669 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:50:00,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 7669 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 853 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-12-14 06:50:00,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18938 states. [2022-12-14 06:50:01,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18938 to 18840. [2022-12-14 06:50:01,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18840 states, 11018 states have (on average 1.227445997458704) internal successors, (13524), 11316 states have internal predecessors, (13524), 6699 states have call successors, (6699), 1131 states have call predecessors, (6699), 1119 states have return successors, (6766), 6615 states have call predecessors, (6766), 6684 states have call successors, (6766) [2022-12-14 06:50:01,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18840 states to 18840 states and 26989 transitions. [2022-12-14 06:50:01,629 INFO L78 Accepts]: Start accepts. Automaton has 18840 states and 26989 transitions. Word has length 925 [2022-12-14 06:50:01,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:50:01,630 INFO L495 AbstractCegarLoop]: Abstraction has 18840 states and 26989 transitions. [2022-12-14 06:50:01,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 2 states have call successors, (129), 2 states have call predecessors, (129), 2 states have return successors, (128), 2 states have call predecessors, (128), 2 states have call successors, (128) [2022-12-14 06:50:01,630 INFO L276 IsEmpty]: Start isEmpty. Operand 18840 states and 26989 transitions. [2022-12-14 06:50:01,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 956 [2022-12-14 06:50:01,653 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:50:01,654 INFO L195 NwaCegarLoop]: trace histogram [29, 26, 20, 13, 13, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:50:01,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ba1645-d003-4340-bdda-26728a739319/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 06:50:01,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ba1645-d003-4340-bdda-26728a739319/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:50:01,856 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_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 06:50:01,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:50:01,858 INFO L85 PathProgramCache]: Analyzing trace with hash -188145519, now seen corresponding path program 1 times [2022-12-14 06:50:01,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:50:01,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345384185] [2022-12-14 06:50:01,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:50:01,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:50:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:50:03,249 INFO L134 CoverageAnalysis]: Checked inductivity of 3102 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3102 trivial. 0 not checked. [2022-12-14 06:50:03,249 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:50:03,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345384185] [2022-12-14 06:50:03,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345384185] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:50:03,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:50:03,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:50:03,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090962050] [2022-12-14 06:50:03,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:50:03,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:50:03,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:50:03,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:50:03,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:50:03,252 INFO L87 Difference]: Start difference. First operand 18840 states and 26989 transitions. Second operand has 5 states, 5 states have (on average 55.8) internal successors, (279), 4 states have internal predecessors, (279), 2 states have call successors, (126), 2 states have call predecessors, (126), 1 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2022-12-14 06:50:06,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:50:07,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:50:11,302 WARN L539 Checker$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 06:50:14,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:50:14,579 INFO L93 Difference]: Finished difference Result 24251 states and 34795 transitions. [2022-12-14 06:50:14,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:50:14,579 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 55.8) internal successors, (279), 4 states have internal predecessors, (279), 2 states have call successors, (126), 2 states have call predecessors, (126), 1 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) Word has length 955 [2022-12-14 06:50:14,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:50:14,649 INFO L225 Difference]: With dead ends: 24251 [2022-12-14 06:50:14,649 INFO L226 Difference]: Without dead ends: 24249 [2022-12-14 06:50:14,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 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 06:50:14,659 INFO L413 NwaCegarLoop]: 5307 mSDtfsCounter, 3836 mSDsluCounter, 14412 mSDsCounter, 0 mSdLazyCounter, 1875 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3837 SdHoareTripleChecker+Valid, 19719 SdHoareTripleChecker+Invalid, 1878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1875 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:50:14,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3837 Valid, 19719 Invalid, 1878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1875 Invalid, 1 Unknown, 0 Unchecked, 10.1s Time] [2022-12-14 06:50:14,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24249 states. [2022-12-14 06:50:16,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24249 to 24192. [2022-12-14 06:50:16,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24192 states, 14166 states have (on average 1.2286460539319497) internal successors, (17405), 14558 states have internal predecessors, (17405), 8598 states have call successors, (8598), 1439 states have call predecessors, (8598), 1424 states have return successors, (8706), 8483 states have call predecessors, (8706), 8583 states have call successors, (8706) [2022-12-14 06:50:16,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24192 states to 24192 states and 34709 transitions. [2022-12-14 06:50:16,178 INFO L78 Accepts]: Start accepts. Automaton has 24192 states and 34709 transitions. Word has length 955 [2022-12-14 06:50:16,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:50:16,179 INFO L495 AbstractCegarLoop]: Abstraction has 24192 states and 34709 transitions. [2022-12-14 06:50:16,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.8) internal successors, (279), 4 states have internal predecessors, (279), 2 states have call successors, (126), 2 states have call predecessors, (126), 1 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2022-12-14 06:50:16,179 INFO L276 IsEmpty]: Start isEmpty. Operand 24192 states and 34709 transitions. [2022-12-14 06:50:16,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2022-12-14 06:50:16,197 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:50:16,198 INFO L195 NwaCegarLoop]: trace histogram [29, 26, 20, 13, 13, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:50:16,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-14 06:50:16,198 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_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 06:50:16,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:50:16,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1128177679, now seen corresponding path program 1 times [2022-12-14 06:50:16,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:50:16,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507915849] [2022-12-14 06:50:16,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:50:16,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:54:37,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat