./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 38b53e6a 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_73b799d2-84c5-4f97-8d68-298d7abdbd67/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b799d2-84c5-4f97-8d68-298d7abdbd67/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b799d2-84c5-4f97-8d68-298d7abdbd67/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b799d2-84c5-4f97-8d68-298d7abdbd67/bin/utaipan-ByfvJB40ur/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_73b799d2-84c5-4f97-8d68-298d7abdbd67/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b799d2-84c5-4f97-8d68-298d7abdbd67/bin/utaipan-ByfvJB40ur --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-38b53e6 [2022-11-25 23:20:14,431 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:20:14,433 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:20:14,457 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:20:14,457 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:20:14,459 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:20:14,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:20:14,462 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:20:14,464 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:20:14,465 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:20:14,466 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:20:14,468 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:20:14,468 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:20:14,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:20:14,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:20:14,473 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:20:14,474 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:20:14,475 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:20:14,477 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:20:14,479 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:20:14,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:20:14,483 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:20:14,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:20:14,485 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:20:14,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:20:14,490 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:20:14,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:20:14,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:20:14,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:20:14,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:20:14,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:20:14,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:20:14,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:20:14,497 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:20:14,498 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:20:14,499 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:20:14,500 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:20:14,500 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:20:14,500 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:20:14,502 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:20:14,503 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:20:14,504 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b799d2-84c5-4f97-8d68-298d7abdbd67/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 23:20:14,532 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:20:14,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:20:14,533 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:20:14,533 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:20:14,534 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:20:14,534 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:20:14,535 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:20:14,535 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:20:14,535 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:20:14,536 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:20:14,536 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:20:14,536 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:20:14,537 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:20:14,537 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:20:14,537 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:20:14,538 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:20:14,538 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:20:14,538 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:20:14,539 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:20:14,540 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:20:14,540 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:20:14,540 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:20:14,541 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:20:14,541 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:20:14,541 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:20:14,543 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:20:14,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:20:14,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:20:14,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:20:14,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:20:14,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:20:14,546 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:20:14,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:20:14,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:20:14,547 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:20:14,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:20:14,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:20:14,549 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:20:14,549 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_73b799d2-84c5-4f97-8d68-298d7abdbd67/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b799d2-84c5-4f97-8d68-298d7abdbd67/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54849713272284bcfc1d249b79bdfa502d33e8d1537f459c00022c26afd8a94c [2022-11-25 23:20:14,919 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:20:14,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:20:14,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:20:14,965 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:20:14,965 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:20:14,967 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b799d2-84c5-4f97-8d68-298d7abdbd67/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-11-25 23:20:18,380 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:20:19,161 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:20:19,162 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b799d2-84c5-4f97-8d68-298d7abdbd67/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-11-25 23:20:19,237 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b799d2-84c5-4f97-8d68-298d7abdbd67/bin/utaipan-ByfvJB40ur/data/295837398/68f65afe797f45c7bd38311e5fbe7cc2/FLAG42bd63a32 [2022-11-25 23:20:19,253 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b799d2-84c5-4f97-8d68-298d7abdbd67/bin/utaipan-ByfvJB40ur/data/295837398/68f65afe797f45c7bd38311e5fbe7cc2 [2022-11-25 23:20:19,258 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:20:19,260 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:20:19,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:20:19,265 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:20:19,268 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:20:19,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:20:19" (1/1) ... [2022-11-25 23:20:19,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52362ea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:20:19, skipping insertion in model container [2022-11-25 23:20:19,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:20:19" (1/1) ... [2022-11-25 23:20:19,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:20:19,523 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:20:20,706 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 23:20:20,758 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 23:20:20,774 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 23:20:20,791 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 23:20:20,870 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 23:20:20,936 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-11-25 23:20:20,961 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-11-25 23:20:21,047 WARN L623 FunctionHandler]: Unknown extern function __get_page_tail [2022-11-25 23:20:21,049 WARN L623 FunctionHandler]: Unknown extern function dump_page [2022-11-25 23:20:21,227 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 23:20:21,236 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 23:20:21,236 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-25 23:20:21,256 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-25 23:20:21,271 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-25 23:20:21,292 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-25 23:20:21,307 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-11-25 23:20:21,376 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-25 23:20:21,386 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:20:21,392 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-25 23:20:21,402 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-11-25 23:20:21,571 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:20:21,582 WARN L623 FunctionHandler]: Unknown extern function ___pskb_trim [2022-11-25 23:20:21,610 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-25 23:20:21,711 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-25 23:20:21,712 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:20:21,910 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 23:20:21,911 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 23:20:21,937 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:20:21,942 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:21,995 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-11-25 23:20:22,002 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-11-25 23:20:22,128 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_dword [2022-11-25 23:20:22,137 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_dword [2022-11-25 23:20:22,205 WARN L623 FunctionHandler]: Unknown extern function __pci_enable_wake [2022-11-25 23:20:22,295 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-11-25 23:20:22,326 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 23:20:22,624 WARN L623 FunctionHandler]: Unknown extern function pci_find_ext_capability [2022-11-25 23:20:22,625 WARN L623 FunctionHandler]: Unknown extern function pcie_capability_write_word [2022-11-25 23:20:22,627 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:20:22,645 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-11-25 23:20:22,653 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:20:22,660 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:20:22,668 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:20:22,669 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:20:22,671 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 23:20:22,673 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-25 23:20:22,681 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:20:22,682 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 23:20:22,691 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 23:20:22,691 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-25 23:20:22,732 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:20:22,742 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:20:22,777 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:20:22,778 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:20:22,778 WARN L623 FunctionHandler]: Unknown extern function netdev_update_features [2022-11-25 23:20:22,802 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:20:22,852 WARN L623 FunctionHandler]: Unknown extern function device_set_wakeup_enable [2022-11-25 23:20:22,854 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:22,856 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:22,856 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:20:22,857 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:20:22,866 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:20:22,900 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:20:22,901 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-11-25 23:20:22,924 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:22,929 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:20:22,950 WARN L623 FunctionHandler]: Unknown extern function pcie_get_readrq [2022-11-25 23:20:22,951 WARN L623 FunctionHandler]: Unknown extern function pcie_set_readrq [2022-11-25 23:20:22,992 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:20:22,996 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:23,064 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-11-25 23:20:23,065 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:23,067 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:20:23,085 WARN L623 FunctionHandler]: Unknown extern function build_skb [2022-11-25 23:20:23,092 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:20:23,094 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:20:23,095 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-25 23:20:23,127 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:20:23,128 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:20:23,130 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:20:23,131 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:20:23,132 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 23:20:23,133 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-11-25 23:20:23,141 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-11-25 23:20:23,149 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-11-25 23:20:23,150 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-11-25 23:20:23,191 WARN L623 FunctionHandler]: Unknown extern function pskb_expand_head [2022-11-25 23:20:23,193 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:20:23,195 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:20:23,196 WARN L623 FunctionHandler]: Unknown extern function csum_ipv6_magic [2022-11-25 23:20:23,199 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:23,248 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 23:20:23,250 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:20:23,251 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:20:23,259 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-11-25 23:20:23,267 WARN L623 FunctionHandler]: Unknown extern function pci_enable_msi_block [2022-11-25 23:20:23,269 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:23,270 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:23,271 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-11-25 23:20:23,273 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:20:23,277 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:20:23,279 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:20:23,279 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:20:23,295 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:20:23,296 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-11-25 23:20:23,304 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:20:23,305 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 23:20:23,308 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:20:23,318 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-25 23:20:23,326 WARN L623 FunctionHandler]: Unknown extern function pci_wake_from_d3 [2022-11-25 23:20:23,326 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-11-25 23:20:23,342 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device_mem [2022-11-25 23:20:23,343 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:23,343 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:23,344 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:23,345 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-11-25 23:20:23,345 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:23,346 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 23:20:23,346 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:23,348 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:23,349 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-11-25 23:20:23,350 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-25 23:20:23,351 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:23,354 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:20:23,354 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 23:20:23,355 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 23:20:23,356 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:23,356 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 23:20:23,357 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:20:23,357 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 23:20:23,358 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:20:23,365 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:20:23,366 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 23:20:23,366 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:20:23,373 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 23:20:23,374 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:20:23,382 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 23:20:23,382 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:23,383 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 23:20:23,391 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:23,392 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-25 23:20:24,123 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 23:20:24,125 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 23:20:24,127 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 23:20:24,129 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 23:20:24,144 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 23:20:24,165 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 23:20:24,173 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-25 23:20:24,176 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 23:20:24,176 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 23:20:24,185 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:20:24,186 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:20:24,187 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:20:24,188 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-11-25 23:20:24,189 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:20:24,195 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_trylock [2022-11-25 23:20:24,196 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 23:20:24,197 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-25 23:20:24,198 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 23:20:24,199 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:20:24,199 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 23:20:24,200 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:20:24,200 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-25 23:20:24,201 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-25 23:20:24,234 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-11-25 23:20:24,335 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:20:24,336 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:20:24,337 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:20:24,339 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:20:24,341 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:20:24,347 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:20:24,351 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-25 23:20:24,353 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:20:24,355 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:20:24,378 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:20:24,378 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:20:24,382 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:24,383 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:24,384 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:24,385 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:24,387 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:24,392 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:20:24,393 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:20:24,396 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:20:24,403 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:20:24,406 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:20:24,440 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:20:24,487 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:20:24,488 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:20:24,489 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:20:24,548 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:20:24,549 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:20:24,556 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:20:24,557 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:20:24,557 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:20:24,574 WARN L623 FunctionHandler]: Unknown extern function device_set_wakeup_enable [2022-11-25 23:20:24,583 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-11-25 23:20:24,647 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-25 23:20:24,647 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 23:20:24,670 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 23:20:25,641 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_73b799d2-84c5-4f97-8d68-298d7abdbd67/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508632,508645] [2022-11-25 23:20:25,651 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_73b799d2-84c5-4f97-8d68-298d7abdbd67/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508801,508814] [2022-11-25 23:20:25,657 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_73b799d2-84c5-4f97-8d68-298d7abdbd67/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508968,508981] [2022-11-25 23:20:25,658 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_73b799d2-84c5-4f97-8d68-298d7abdbd67/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[509136,509149] [2022-11-25 23:20:25,666 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:20:25,667 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:20:25,670 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:20:25,670 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:20:25,671 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:20:25,686 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:20:25,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:20:25,781 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:20:25,954 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 23:20:25,955 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 23:20:25,956 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 23:20:25,956 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 23:20:25,957 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 23:20:25,959 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-11-25 23:20:25,959 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-11-25 23:20:25,961 WARN L623 FunctionHandler]: Unknown extern function __get_page_tail [2022-11-25 23:20:25,962 WARN L623 FunctionHandler]: Unknown extern function dump_page [2022-11-25 23:20:25,971 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 23:20:25,972 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 23:20:25,972 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-25 23:20:25,974 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-25 23:20:25,975 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-25 23:20:25,976 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-25 23:20:25,976 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-11-25 23:20:25,980 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-25 23:20:25,981 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:20:25,982 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-25 23:20:25,983 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-11-25 23:20:25,988 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:20:25,989 WARN L623 FunctionHandler]: Unknown extern function ___pskb_trim [2022-11-25 23:20:25,990 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-25 23:20:25,993 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-25 23:20:25,993 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:20:25,996 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 23:20:25,996 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 23:20:25,997 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:20:25,998 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:26,000 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-11-25 23:20:26,000 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-11-25 23:20:26,002 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_dword [2022-11-25 23:20:26,005 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_dword [2022-11-25 23:20:26,007 WARN L623 FunctionHandler]: Unknown extern function __pci_enable_wake [2022-11-25 23:20:26,010 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-11-25 23:20:26,011 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 23:20:26,023 WARN L623 FunctionHandler]: Unknown extern function pci_find_ext_capability [2022-11-25 23:20:26,023 WARN L623 FunctionHandler]: Unknown extern function pcie_capability_write_word [2022-11-25 23:20:26,024 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:20:26,026 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-11-25 23:20:26,027 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:20:26,028 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:20:26,030 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:20:26,030 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:20:26,032 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 23:20:26,033 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-25 23:20:26,034 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:20:26,035 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 23:20:26,036 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 23:20:26,037 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-25 23:20:26,041 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:20:26,044 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:20:26,048 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:20:26,049 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:20:26,049 WARN L623 FunctionHandler]: Unknown extern function netdev_update_features [2022-11-25 23:20:26,053 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:20:26,060 WARN L623 FunctionHandler]: Unknown extern function device_set_wakeup_enable [2022-11-25 23:20:26,061 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:26,062 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:26,063 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:20:26,063 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:20:26,065 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:20:26,070 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:20:26,071 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-11-25 23:20:26,074 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:26,076 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:20:26,080 WARN L623 FunctionHandler]: Unknown extern function pcie_get_readrq [2022-11-25 23:20:26,080 WARN L623 FunctionHandler]: Unknown extern function pcie_set_readrq [2022-11-25 23:20:26,092 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:20:26,092 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:26,108 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-11-25 23:20:26,109 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:26,110 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:20:26,112 WARN L623 FunctionHandler]: Unknown extern function build_skb [2022-11-25 23:20:26,114 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:20:26,115 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:20:26,116 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-25 23:20:26,121 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:20:26,122 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:20:26,123 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:20:26,124 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:20:26,124 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 23:20:26,125 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-11-25 23:20:26,126 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-11-25 23:20:26,127 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-11-25 23:20:26,128 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-11-25 23:20:26,132 WARN L623 FunctionHandler]: Unknown extern function pskb_expand_head [2022-11-25 23:20:26,134 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:20:26,192 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:20:26,192 WARN L623 FunctionHandler]: Unknown extern function csum_ipv6_magic [2022-11-25 23:20:26,194 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:26,206 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 23:20:26,208 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:20:26,209 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:20:26,210 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-11-25 23:20:26,211 WARN L623 FunctionHandler]: Unknown extern function pci_enable_msi_block [2022-11-25 23:20:26,211 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:26,212 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:26,212 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-11-25 23:20:26,214 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:20:26,215 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:20:26,216 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:20:26,216 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:20:26,218 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:20:26,218 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-11-25 23:20:26,219 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:20:26,220 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 23:20:26,221 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:20:26,223 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-25 23:20:26,227 WARN L623 FunctionHandler]: Unknown extern function pci_wake_from_d3 [2022-11-25 23:20:26,228 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-11-25 23:20:26,233 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device_mem [2022-11-25 23:20:26,234 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:26,234 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:26,235 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:26,235 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-11-25 23:20:26,235 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:26,237 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 23:20:26,237 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:26,244 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:26,245 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-11-25 23:20:26,245 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-25 23:20:26,246 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:26,248 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:20:26,249 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 23:20:26,249 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 23:20:26,250 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:26,250 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 23:20:26,252 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:20:26,252 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 23:20:26,253 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:20:26,254 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:20:26,254 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 23:20:26,254 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:20:26,255 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 23:20:26,255 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:20:26,256 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 23:20:26,256 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:26,256 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 23:20:26,257 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:26,258 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-25 23:20:26,267 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 23:20:26,268 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 23:20:26,270 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 23:20:26,270 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 23:20:26,281 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 23:20:26,292 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 23:20:26,319 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-25 23:20:26,328 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 23:20:26,328 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 23:20:26,333 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:20:26,333 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:20:26,333 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:20:26,334 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-11-25 23:20:26,334 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:20:26,334 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_trylock [2022-11-25 23:20:26,335 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 23:20:26,336 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-25 23:20:26,336 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 23:20:26,337 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:20:26,337 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 23:20:26,337 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:20:26,338 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-25 23:20:26,338 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-25 23:20:26,338 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-11-25 23:20:26,345 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:20:26,346 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:20:26,346 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:20:26,347 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:20:26,348 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:20:26,351 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:20:26,354 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-25 23:20:26,355 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:20:26,359 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:20:26,371 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:20:26,371 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:20:26,374 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:26,379 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:26,379 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:26,380 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:26,381 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:20:26,389 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:20:26,389 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:20:26,391 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:20:26,401 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:20:26,403 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:20:26,406 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:20:26,408 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:20:26,409 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:20:26,410 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:20:26,428 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:20:26,429 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:20:26,429 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:20:26,430 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:20:26,430 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:20:26,432 WARN L623 FunctionHandler]: Unknown extern function device_set_wakeup_enable [2022-11-25 23:20:26,435 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-11-25 23:20:26,439 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-25 23:20:26,439 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 23:20:26,439 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 23:20:26,518 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_73b799d2-84c5-4f97-8d68-298d7abdbd67/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508632,508645] [2022-11-25 23:20:26,518 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_73b799d2-84c5-4f97-8d68-298d7abdbd67/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508801,508814] [2022-11-25 23:20:26,519 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_73b799d2-84c5-4f97-8d68-298d7abdbd67/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508968,508981] [2022-11-25 23:20:26,520 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_73b799d2-84c5-4f97-8d68-298d7abdbd67/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[509136,509149] [2022-11-25 23:20:26,521 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:20:26,524 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:20:26,525 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:20:26,526 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:20:26,526 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:20:26,529 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:20:26,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:20:26,907 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:20:26,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:20:26 WrapperNode [2022-11-25 23:20:26,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:20:26,909 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:20:26,909 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:20:26,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:20:26,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:20:26" (1/1) ... [2022-11-25 23:20:27,052 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:20:26" (1/1) ... [2022-11-25 23:20:27,425 INFO L138 Inliner]: procedures = 678, calls = 4011, calls flagged for inlining = 356, calls inlined = 330, statements flattened = 10046 [2022-11-25 23:20:27,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:20:27,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:20:27,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:20:27,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:20:27,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:20:26" (1/1) ... [2022-11-25 23:20:27,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:20:26" (1/1) ... [2022-11-25 23:20:27,529 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:20:26" (1/1) ... [2022-11-25 23:20:27,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:20:26" (1/1) ... [2022-11-25 23:20:27,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:20:26" (1/1) ... [2022-11-25 23:20:27,795 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:20:26" (1/1) ... [2022-11-25 23:20:27,847 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:20:26" (1/1) ... [2022-11-25 23:20:27,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:20:26" (1/1) ... [2022-11-25 23:20:28,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:20:28,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:20:28,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:20:28,043 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:20:28,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:20:26" (1/1) ... [2022-11-25 23:20:28,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:20:28,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b799d2-84c5-4f97-8d68-298d7abdbd67/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:20:28,088 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b799d2-84c5-4f97-8d68-298d7abdbd67/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:20:28,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b799d2-84c5-4f97-8d68-298d7abdbd67/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:20:28,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_93 [2022-11-25 23:20:28,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_93 [2022-11-25 23:20:28,137 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-25 23:20:28,137 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-25 23:20:28,137 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-25 23:20:28,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-25 23:20:28,138 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_core [2022-11-25 23:20:28,138 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_core [2022-11-25 23:20:28,138 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-25 23:20:28,138 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-25 23:20:28,138 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_post_phy_linkchg [2022-11-25 23:20:28,138 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_post_phy_linkchg [2022-11-25 23:20:28,138 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-25 23:20:28,139 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-25 23:20:28,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-25 23:20:28,139 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-25 23:20:28,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_80 [2022-11-25 23:20:28,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_80 [2022-11-25 23:20:28,139 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-25 23:20:28,140 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-25 23:20:28,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 23:20:28,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 23:20:28,140 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_rx_ring [2022-11-25 23:20:28,140 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_rx_ring [2022-11-25 23:20:28,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-25 23:20:28,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-25 23:20:28,141 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-25 23:20:28,141 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-25 23:20:28,141 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-25 23:20:28,141 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-25 23:20:28,141 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-25 23:20:28,141 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-25 23:20:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_current_addr [2022-11-25 23:20:28,142 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_current_addr [2022-11-25 23:20:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-25 23:20:28,142 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-25 23:20:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_mac [2022-11-25 23:20:28,142 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_mac [2022-11-25 23:20:28,143 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_irq_disable [2022-11-25 23:20:28,143 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_irq_disable [2022-11-25 23:20:28,143 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_stop_phy_polling [2022-11-25 23:20:28,143 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_stop_phy_polling [2022-11-25 23:20:28,143 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-25 23:20:28,143 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-25 23:20:28,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-25 23:20:28,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-25 23:20:28,144 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-25 23:20:28,144 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-25 23:20:28,144 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-25 23:20:28,144 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-25 23:20:28,144 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-25 23:20:28,144 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-25 23:20:28,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-25 23:20:28,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-25 23:20:28,145 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-25 23:20:28,145 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-25 23:20:28,146 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-25 23:20:28,146 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-25 23:20:28,146 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-25 23:20:28,146 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-25 23:20:28,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:20:28,146 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-25 23:20:28,147 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-25 23:20:28,147 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_speed_and_duplex [2022-11-25 23:20:28,147 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_speed_and_duplex [2022-11-25 23:20:28,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_mdio_lock_of_atl1c_adapter [2022-11-25 23:20:28,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_mdio_lock_of_atl1c_adapter [2022-11-25 23:20:28,147 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-25 23:20:28,147 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-25 23:20:28,148 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_close [2022-11-25 23:20:28,148 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_close [2022-11-25 23:20:28,148 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-25 23:20:28,148 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-25 23:20:28,148 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_reg [2022-11-25 23:20:28,148 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_reg [2022-11-25 23:20:28,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 23:20:28,149 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_init [2022-11-25 23:20:28,149 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_init [2022-11-25 23:20:28,149 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_dbg [2022-11-25 23:20:28,149 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_dbg [2022-11-25 23:20:28,149 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_regs_len [2022-11-25 23:20:28,149 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_regs_len [2022-11-25 23:20:28,150 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-25 23:20:28,150 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-25 23:20:28,150 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-25 23:20:28,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-25 23:20:28,150 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_free_ring_resources [2022-11-25 23:20:28,150 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_free_ring_resources [2022-11-25 23:20:28,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 23:20:28,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-25 23:20:28,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-25 23:20:28,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:20:28,151 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-25 23:20:28,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-25 23:20:28,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-25 23:20:28,152 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-25 23:20:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-25 23:20:28,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-25 23:20:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-25 23:20:28,152 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-25 23:20:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-25 23:20:28,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-25 23:20:28,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-25 23:20:28,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-25 23:20:28,153 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-25 23:20:28,153 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-25 23:20:28,153 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_multi [2022-11-25 23:20:28,153 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_multi [2022-11-25 23:20:28,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-25 23:20:28,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-25 23:20:28,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 23:20:28,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:20:28,154 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-25 23:20:28,154 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-25 23:20:28,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-25 23:20:28,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-25 23:20:28,155 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-25 23:20:28,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-25 23:20:28,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 23:20:28,156 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_start_phy_polling [2022-11-25 23:20:28,156 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_start_phy_polling [2022-11-25 23:20:28,156 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-25 23:20:28,156 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-25 23:20:28,157 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-25 23:20:28,157 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 23:20:28,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 23:20:28,157 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-25 23:20:28,157 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-25 23:20:28,157 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-25 23:20:28,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-25 23:20:28,158 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-25 23:20:28,158 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-25 23:20:28,158 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_core [2022-11-25 23:20:28,158 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_core [2022-11-25 23:20:28,158 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_wait_until_idle [2022-11-25 23:20:28,158 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_wait_until_idle [2022-11-25 23:20:28,159 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-25 23:20:28,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-25 23:20:28,159 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-25 23:20:28,159 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-25 23:20:28,159 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-25 23:20:28,159 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-25 23:20:28,159 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_check_link_status [2022-11-25 23:20:28,160 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_check_link_status [2022-11-25 23:20:28,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-25 23:20:28,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-25 23:20:28,160 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_alloc_rx_buffer [2022-11-25 23:20:28,160 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_alloc_rx_buffer [2022-11-25 23:20:28,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mdio_lock_of_atl1c_adapter [2022-11-25 23:20:28,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mdio_lock_of_atl1c_adapter [2022-11-25 23:20:28,161 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_io_resume [2022-11-25 23:20:28,161 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_io_resume [2022-11-25 23:20:28,161 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_dbg [2022-11-25 23:20:28,161 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_dbg [2022-11-25 23:20:28,161 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_wait_mdio_idle [2022-11-25 23:20:28,161 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_wait_mdio_idle [2022-11-25 23:20:28,161 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-25 23:20:28,162 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-25 23:20:28,162 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-25 23:20:28,162 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-25 23:20:28,162 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_vlan_mode [2022-11-25 23:20:28,162 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_vlan_mode [2022-11-25 23:20:28,162 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_tx_buffer [2022-11-25 23:20:28,162 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_tx_buffer [2022-11-25 23:20:28,163 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_down [2022-11-25 23:20:28,163 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_down [2022-11-25 23:20:28,163 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_suspend [2022-11-25 23:20:28,163 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_suspend [2022-11-25 23:20:28,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:20:28,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:20:28,163 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-25 23:20:28,164 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-25 23:20:28,164 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-25 23:20:28,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-25 23:20:28,164 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-25 23:20:28,164 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-25 23:20:28,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 23:20:28,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 23:20:28,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 23:20:28,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 23:20:28,165 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-25 23:20:28,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-25 23:20:28,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-25 23:20:28,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-25 23:20:28,166 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-25 23:20:28,166 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-25 23:20:28,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-11-25 23:20:28,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-11-25 23:20:28,166 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_tx_timeout [2022-11-25 23:20:28,166 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_tx_timeout [2022-11-25 23:20:28,166 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-25 23:20:28,167 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-25 23:20:28,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-25 23:20:28,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-25 23:20:28,167 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_tpd [2022-11-25 23:20:28,167 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_tpd [2022-11-25 23:20:28,167 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_hw_set_mac_addr [2022-11-25 23:20:28,167 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_hw_set_mac_addr [2022-11-25 23:20:28,168 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-25 23:20:28,168 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-25 23:20:28,168 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-25 23:20:28,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-25 23:20:28,168 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-25 23:20:28,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-25 23:20:28,168 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_restart_autoneg [2022-11-25 23:20:28,169 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_restart_autoneg [2022-11-25 23:20:28,169 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_rxbufsize [2022-11-25 23:20:28,169 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_rxbufsize [2022-11-25 23:20:28,169 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-25 23:20:28,169 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-25 23:20:28,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 23:20:28,169 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 23:20:28,170 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_free_irq [2022-11-25 23:20:28,170 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_free_irq [2022-11-25 23:20:28,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-25 23:20:28,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-25 23:20:28,170 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_ext [2022-11-25 23:20:28,170 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_ext [2022-11-25 23:20:28,170 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-25 23:20:28,171 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-25 23:20:28,171 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-25 23:20:28,171 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-25 23:20:28,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:20:28,171 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-25 23:20:28,171 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-25 23:20:28,171 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_nway_reset [2022-11-25 23:20:28,172 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_nway_reset [2022-11-25 23:20:28,172 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_dma_ring [2022-11-25 23:20:28,172 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_dma_ring [2022-11-25 23:20:28,172 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-25 23:20:28,172 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-25 23:20:28,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 23:20:28,172 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_irq_enable [2022-11-25 23:20:28,173 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_irq_enable [2022-11-25 23:20:28,173 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-25 23:20:28,173 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-25 23:20:28,173 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_eeprom_len [2022-11-25 23:20:28,173 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_eeprom_len [2022-11-25 23:20:28,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 23:20:28,174 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-25 23:20:28,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-25 23:20:28,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-25 23:20:28,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-25 23:20:28,174 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_check_eeprom_exist [2022-11-25 23:20:28,174 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_check_eeprom_exist [2022-11-25 23:20:28,174 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-25 23:20:28,175 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-25 23:20:28,175 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-25 23:20:28,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-25 23:20:28,175 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_netpoll [2022-11-25 23:20:28,175 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_netpoll [2022-11-25 23:20:28,175 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-25 23:20:28,175 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-25 23:20:28,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-25 23:20:28,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-25 23:20:28,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-25 23:20:28,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-25 23:20:28,176 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_configure [2022-11-25 23:20:28,176 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_configure [2022-11-25 23:20:28,176 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-25 23:20:28,177 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-25 23:20:28,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_85 [2022-11-25 23:20:28,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_85 [2022-11-25 23:20:28,177 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_tx_ring [2022-11-25 23:20:28,177 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_tx_ring [2022-11-25 23:20:28,177 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_reset [2022-11-25 23:20:28,178 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_reset [2022-11-25 23:20:28,178 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_open [2022-11-25 23:20:28,178 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_open [2022-11-25 23:20:28,178 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-25 23:20:28,178 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-25 23:20:28,178 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-25 23:20:28,178 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-25 23:20:28,179 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-25 23:20:28,179 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-25 23:20:28,179 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-25 23:20:28,179 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-25 23:20:28,179 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_intr [2022-11-25 23:20:28,179 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_intr [2022-11-25 23:20:28,179 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-25 23:20:28,180 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-25 23:20:28,180 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_power_saving [2022-11-25 23:20:28,180 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_power_saving [2022-11-25 23:20:28,180 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_setup_adv [2022-11-25 23:20:28,180 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_setup_adv [2022-11-25 23:20:28,180 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-25 23:20:28,180 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-25 23:20:28,181 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-25 23:20:28,181 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-25 23:20:28,181 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_buffer [2022-11-25 23:20:28,181 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_buffer [2022-11-25 23:20:28,181 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_remove [2022-11-25 23:20:28,181 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_remove [2022-11-25 23:20:28,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:20:28,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 23:20:28,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 23:20:28,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_86 [2022-11-25 23:20:28,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_86 [2022-11-25 23:20:28,182 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-25 23:20:28,182 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-25 23:20:28,183 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-25 23:20:28,183 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-25 23:20:28,183 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_up [2022-11-25 23:20:28,183 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_up [2022-11-25 23:20:28,183 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-25 23:20:28,183 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-25 23:20:28,183 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_disable_l0s_l1 [2022-11-25 23:20:28,184 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_disable_l0s_l1 [2022-11-25 23:20:28,184 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_resume [2022-11-25 23:20:28,184 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_resume [2022-11-25 23:20:28,184 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-25 23:20:28,184 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-25 23:20:28,184 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_pcie [2022-11-25 23:20:28,184 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_pcie [2022-11-25 23:20:28,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-25 23:20:28,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-25 23:20:28,185 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-25 23:20:28,185 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-25 23:20:28,185 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-25 23:20:28,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-25 23:20:28,186 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_shutdown [2022-11-25 23:20:28,186 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_shutdown [2022-11-25 23:20:28,186 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_aspm [2022-11-25 23:20:28,186 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_aspm [2022-11-25 23:20:28,186 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-25 23:20:28,186 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-25 23:20:28,186 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-25 23:20:28,187 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-25 23:20:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-25 23:20:28,187 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-25 23:20:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_reg [2022-11-25 23:20:28,187 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_reg [2022-11-25 23:20:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:20:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-25 23:20:28,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-25 23:20:29,686 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:20:29,690 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:20:30,667 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 23:20:42,626 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:20:45,634 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:20:45,634 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 23:20:45,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:20:45 BoogieIcfgContainer [2022-11-25 23:20:45,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:20:45,646 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:20:45,646 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:20:45,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:20:45,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:20:19" (1/3) ... [2022-11-25 23:20:45,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13853f88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:20:45, skipping insertion in model container [2022-11-25 23:20:45,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:20:26" (2/3) ... [2022-11-25 23:20:45,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13853f88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:20:45, skipping insertion in model container [2022-11-25 23:20:45,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:20:45" (3/3) ... [2022-11-25 23:20:45,654 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-11-25 23:20:45,676 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:20:45,676 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-25 23:20:45,809 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:20:45,820 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;@581f55db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:20:45,820 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-25 23:20:45,838 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) [2022-11-25 23:20:45,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-25 23:20:45,849 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:20:45,851 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] [2022-11-25 23:20:45,851 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)] === [2022-11-25 23:20:45,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:20:45,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1640733864, now seen corresponding path program 1 times [2022-11-25 23:20:45,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:20:45,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052956479] [2022-11-25 23:20:45,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:20:45,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:20:46,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:20:46,869 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-25 23:20:46,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:20:46,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052956479] [2022-11-25 23:20:46,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052956479] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:20:46,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:20:46,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:20:46,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727209180] [2022-11-25 23:20:46,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:20:46,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:20:46,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:20:46,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:20:46,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:20:46,945 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) [2022-11-25 23:20:51,470 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 [] [2022-11-25 23:20:52,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:20:56,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:20:59,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:21:00,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:21:00,358 INFO L93 Difference]: Finished difference Result 8864 states and 12986 transitions. [2022-11-25 23:21:00,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:21:00,361 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 [2022-11-25 23:21:00,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:21:00,414 INFO L225 Difference]: With dead ends: 8864 [2022-11-25 23:21:00,415 INFO L226 Difference]: Without dead ends: 5894 [2022-11-25 23:21:00,437 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 [2022-11-25 23:21:00,440 INFO L413 NwaCegarLoop]: 5452 mSDtfsCounter, 4263 mSDsluCounter, 14721 mSDsCounter, 0 mSdLazyCounter, 1860 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4279 SdHoareTripleChecker+Valid, 20173 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1860 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:21:00,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4279 Valid, 20173 Invalid, 1864 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1860 Invalid, 2 Unknown, 0 Unchecked, 12.7s Time] [2022-11-25 23:21:00,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5894 states. [2022-11-25 23:21:01,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5894 to 5886. [2022-11-25 23:21:01,094 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) [2022-11-25 23:21:01,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5886 states to 5886 states and 8504 transitions. [2022-11-25 23:21:01,143 INFO L78 Accepts]: Start accepts. Automaton has 5886 states and 8504 transitions. Word has length 35 [2022-11-25 23:21:01,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:21:01,145 INFO L495 AbstractCegarLoop]: Abstraction has 5886 states and 8504 transitions. [2022-11-25 23:21:01,145 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) [2022-11-25 23:21:01,145 INFO L276 IsEmpty]: Start isEmpty. Operand 5886 states and 8504 transitions. [2022-11-25 23:21:01,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-25 23:21:01,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:21:01,149 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] [2022-11-25 23:21:01,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:21:01,150 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)] === [2022-11-25 23:21:01,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:21:01,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1100491713, now seen corresponding path program 1 times [2022-11-25 23:21:01,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:21:01,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747506375] [2022-11-25 23:21:01,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:21:01,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:21:01,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:21:01,735 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-25 23:21:01,735 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:21:01,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747506375] [2022-11-25 23:21:01,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747506375] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:21:01,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:21:01,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:21:01,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3489344] [2022-11-25 23:21:01,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:21:01,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:21:01,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:21:01,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:21:01,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:21:01,740 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) [2022-11-25 23:21:05,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:21:07,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:21:10,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:21:12,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:21:14,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:21:14,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:21:14,666 INFO L93 Difference]: Finished difference Result 5896 states and 8513 transitions. [2022-11-25 23:21:14,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:21:14,667 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 [2022-11-25 23:21:14,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:21:14,712 INFO L225 Difference]: With dead ends: 5896 [2022-11-25 23:21:14,712 INFO L226 Difference]: Without dead ends: 5894 [2022-11-25 23:21:14,718 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 [2022-11-25 23:21:14,722 INFO L413 NwaCegarLoop]: 3839 mSDtfsCounter, 4240 mSDsluCounter, 7655 mSDsCounter, 0 mSdLazyCounter, 1300 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4254 SdHoareTripleChecker+Valid, 11494 SdHoareTripleChecker+Invalid, 1302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1300 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:21:14,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4254 Valid, 11494 Invalid, 1302 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1300 Invalid, 1 Unknown, 0 Unchecked, 12.5s Time] [2022-11-25 23:21:14,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5894 states. [2022-11-25 23:21:15,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5894 to 5894. [2022-11-25 23:21:15,435 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) [2022-11-25 23:21:15,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5894 states to 5894 states and 8510 transitions. [2022-11-25 23:21:15,481 INFO L78 Accepts]: Start accepts. Automaton has 5894 states and 8510 transitions. Word has length 40 [2022-11-25 23:21:15,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:21:15,482 INFO L495 AbstractCegarLoop]: Abstraction has 5894 states and 8510 transitions. [2022-11-25 23:21:15,483 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) [2022-11-25 23:21:15,484 INFO L276 IsEmpty]: Start isEmpty. Operand 5894 states and 8510 transitions. [2022-11-25 23:21:15,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-25 23:21:15,493 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:21:15,493 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-11-25 23:21:15,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:21:15,494 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)] === [2022-11-25 23:21:15,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:21:15,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1083921592, now seen corresponding path program 1 times [2022-11-25 23:21:15,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:21:15,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400512313] [2022-11-25 23:21:15,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:21:15,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:21:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:21:16,027 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 23:21:16,027 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:21:16,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400512313] [2022-11-25 23:21:16,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400512313] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:21:16,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:21:16,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:21:16,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812703432] [2022-11-25 23:21:16,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:21:16,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:21:16,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:21:16,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:21:16,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:21:16,030 INFO L87 Difference]: Start difference. First operand 5894 states and 8510 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, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 23:21:20,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:21:21,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:21:24,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:21:26,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:21:28,590 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 [] [2022-11-25 23:21:29,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:21:29,188 INFO L93 Difference]: Finished difference Result 5904 states and 8519 transitions. [2022-11-25 23:21:29,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:21:29,189 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, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 45 [2022-11-25 23:21:29,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:21:29,228 INFO L225 Difference]: With dead ends: 5904 [2022-11-25 23:21:29,228 INFO L226 Difference]: Without dead ends: 5902 [2022-11-25 23:21:29,234 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 [2022-11-25 23:21:29,234 INFO L413 NwaCegarLoop]: 3839 mSDtfsCounter, 4240 mSDsluCounter, 7655 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4253 SdHoareTripleChecker+Valid, 11494 SdHoareTripleChecker+Invalid, 1302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:21:29,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4253 Valid, 11494 Invalid, 1302 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1298 Invalid, 3 Unknown, 0 Unchecked, 12.7s Time] [2022-11-25 23:21:29,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5902 states. [2022-11-25 23:21:29,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5902 to 5902. [2022-11-25 23:21:29,788 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) [2022-11-25 23:21:29,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5902 states to 5902 states and 8516 transitions. [2022-11-25 23:21:29,820 INFO L78 Accepts]: Start accepts. Automaton has 5902 states and 8516 transitions. Word has length 45 [2022-11-25 23:21:29,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:21:29,822 INFO L495 AbstractCegarLoop]: Abstraction has 5902 states and 8516 transitions. [2022-11-25 23:21:29,822 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, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 23:21:29,822 INFO L276 IsEmpty]: Start isEmpty. Operand 5902 states and 8516 transitions. [2022-11-25 23:21:29,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-25 23:21:29,825 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:21:29,825 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 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] [2022-11-25 23:21:29,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:21:29,825 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)] === [2022-11-25 23:21:29,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:21:29,826 INFO L85 PathProgramCache]: Analyzing trace with hash 317408737, now seen corresponding path program 1 times [2022-11-25 23:21:29,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:21:29,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151314798] [2022-11-25 23:21:29,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:21:29,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:21:29,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:21:30,259 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-25 23:21:30,260 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:21:30,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151314798] [2022-11-25 23:21:30,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151314798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:21:30,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:21:30,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:21:30,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686427455] [2022-11-25 23:21:30,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:21:30,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:21:30,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:21:30,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:21:30,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:21:30,262 INFO L87 Difference]: Start difference. First operand 5902 states and 8516 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, (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) [2022-11-25 23:21:32,698 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 [] [2022-11-25 23:21:34,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:21:38,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:21:41,045 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 [] [2022-11-25 23:21:41,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:21:41,649 INFO L93 Difference]: Finished difference Result 5916 states and 8525 transitions. [2022-11-25 23:21:41,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:21:41,650 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, (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 50 [2022-11-25 23:21:41,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:21:41,691 INFO L225 Difference]: With dead ends: 5916 [2022-11-25 23:21:41,691 INFO L226 Difference]: Without dead ends: 5914 [2022-11-25 23:21:41,697 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 [2022-11-25 23:21:41,703 INFO L413 NwaCegarLoop]: 5438 mSDtfsCounter, 4240 mSDsluCounter, 14668 mSDsCounter, 0 mSdLazyCounter, 1861 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4252 SdHoareTripleChecker+Valid, 20106 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1861 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:21:41,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4252 Valid, 20106 Invalid, 1864 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1861 Invalid, 1 Unknown, 0 Unchecked, 10.9s Time] [2022-11-25 23:21:41,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5914 states. [2022-11-25 23:21:42,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5914 to 5906. [2022-11-25 23:21:42,231 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) [2022-11-25 23:21:42,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5906 states to 5906 states and 8519 transitions. [2022-11-25 23:21:42,262 INFO L78 Accepts]: Start accepts. Automaton has 5906 states and 8519 transitions. Word has length 50 [2022-11-25 23:21:42,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:21:42,263 INFO L495 AbstractCegarLoop]: Abstraction has 5906 states and 8519 transitions. [2022-11-25 23:21:42,263 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, (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) [2022-11-25 23:21:42,263 INFO L276 IsEmpty]: Start isEmpty. Operand 5906 states and 8519 transitions. [2022-11-25 23:21:42,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-25 23:21:42,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:21:42,265 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] [2022-11-25 23:21:42,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:21:42,266 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)] === [2022-11-25 23:21:42,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:21:42,266 INFO L85 PathProgramCache]: Analyzing trace with hash -537018856, now seen corresponding path program 1 times [2022-11-25 23:21:42,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:21:42,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828037197] [2022-11-25 23:21:42,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:21:42,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:21:42,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:21:42,614 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-25 23:21:42,614 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:21:42,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828037197] [2022-11-25 23:21:42,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828037197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:21:42,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:21:42,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:21:42,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282033211] [2022-11-25 23:21:42,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:21:42,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:21:42,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:21:42,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:21:42,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:21:42,617 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, (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) [2022-11-25 23:21:46,849 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 [] [2022-11-25 23:21:50,405 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 [] [2022-11-25 23:21:52,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:21:52,991 INFO L93 Difference]: Finished difference Result 5920 states and 8528 transitions. [2022-11-25 23:21:52,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:21:52,992 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 [2022-11-25 23:21:52,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:21:53,033 INFO L225 Difference]: With dead ends: 5920 [2022-11-25 23:21:53,033 INFO L226 Difference]: Without dead ends: 5918 [2022-11-25 23:21:53,038 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 [2022-11-25 23:21:53,039 INFO L413 NwaCegarLoop]: 5444 mSDtfsCounter, 4240 mSDsluCounter, 14680 mSDsCounter, 0 mSdLazyCounter, 1861 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4251 SdHoareTripleChecker+Valid, 20124 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1861 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:21:53,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4251 Valid, 20124 Invalid, 1864 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1861 Invalid, 1 Unknown, 0 Unchecked, 10.0s Time] [2022-11-25 23:21:53,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5918 states. [2022-11-25 23:21:53,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5918 to 5910. [2022-11-25 23:21:53,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 3444 states have (on average 1.2328687572590011) internal successors, (4246), 3542 states have internal predecessors, (4246), 2141 states have call successors, (2141), 323 states have call predecessors, (2141), 321 states have return successors, (2135), 2117 states have call predecessors, (2135), 2135 states have call successors, (2135) [2022-11-25 23:21:53,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 8522 transitions. [2022-11-25 23:21:53,597 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 8522 transitions. Word has length 55 [2022-11-25 23:21:53,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:21:53,598 INFO L495 AbstractCegarLoop]: Abstraction has 5910 states and 8522 transitions. [2022-11-25 23:21:53,598 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) [2022-11-25 23:21:53,598 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 8522 transitions. [2022-11-25 23:21:53,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-25 23:21:53,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:21:53,600 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 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] [2022-11-25 23:21:53,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 23:21:53,601 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)] === [2022-11-25 23:21:53,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:21:53,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1850873855, now seen corresponding path program 1 times [2022-11-25 23:21:53,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:21:53,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029793750] [2022-11-25 23:21:53,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:21:53,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:21:53,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:21:53,991 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-25 23:21:53,991 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:21:53,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029793750] [2022-11-25 23:21:53,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029793750] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:21:53,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:21:53,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:21:53,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307655384] [2022-11-25 23:21:53,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:21:53,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:21:53,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:21:53,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:21:53,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:21:53,995 INFO L87 Difference]: Start difference. First operand 5910 states and 8522 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, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 23:21:57,858 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 [] [2022-11-25 23:22:02,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:22:05,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:22:07,646 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 [] [2022-11-25 23:22:08,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:22:08,301 INFO L93 Difference]: Finished difference Result 5924 states and 8531 transitions. [2022-11-25 23:22:08,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:22:08,302 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, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 60 [2022-11-25 23:22:08,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:22:08,326 INFO L225 Difference]: With dead ends: 5924 [2022-11-25 23:22:08,326 INFO L226 Difference]: Without dead ends: 5922 [2022-11-25 23:22:08,329 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 [2022-11-25 23:22:08,329 INFO L413 NwaCegarLoop]: 5438 mSDtfsCounter, 4240 mSDsluCounter, 14668 mSDsCounter, 0 mSdLazyCounter, 1859 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4250 SdHoareTripleChecker+Valid, 20106 SdHoareTripleChecker+Invalid, 1865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1859 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:22:08,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4250 Valid, 20106 Invalid, 1865 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1859 Invalid, 4 Unknown, 0 Unchecked, 13.8s Time] [2022-11-25 23:22:08,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5922 states. [2022-11-25 23:22:08,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5922 to 5914. [2022-11-25 23:22:08,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5914 states, 3447 states have (on average 1.2326660864519872) internal successors, (4249), 3545 states have internal predecessors, (4249), 2141 states have call successors, (2141), 324 states have call predecessors, (2141), 322 states have return successors, (2135), 2117 states have call predecessors, (2135), 2135 states have call successors, (2135) [2022-11-25 23:22:08,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5914 states to 5914 states and 8525 transitions. [2022-11-25 23:22:08,790 INFO L78 Accepts]: Start accepts. Automaton has 5914 states and 8525 transitions. Word has length 60 [2022-11-25 23:22:08,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:22:08,791 INFO L495 AbstractCegarLoop]: Abstraction has 5914 states and 8525 transitions. [2022-11-25 23:22:08,791 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, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 23:22:08,791 INFO L276 IsEmpty]: Start isEmpty. Operand 5914 states and 8525 transitions. [2022-11-25 23:22:08,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-25 23:22:08,792 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:22:08,793 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 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] [2022-11-25 23:22:08,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 23:22:08,793 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)] === [2022-11-25 23:22:08,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:22:08,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1094234368, now seen corresponding path program 1 times [2022-11-25 23:22:08,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:22:08,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103845025] [2022-11-25 23:22:08,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:22:08,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:22:08,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:22:09,181 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-11-25 23:22:09,181 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:22:09,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103845025] [2022-11-25 23:22:09,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103845025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:22:09,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:22:09,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:22:09,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394795100] [2022-11-25 23:22:09,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:22:09,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:22:09,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:22:09,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:22:09,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:22:09,184 INFO L87 Difference]: Start difference. First operand 5914 states and 8525 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, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 23:22:12,672 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 [] [2022-11-25 23:22:17,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:22:18,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:22:18,936 INFO L93 Difference]: Finished difference Result 8865 states and 12766 transitions. [2022-11-25 23:22:18,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:22:18,937 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, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 71 [2022-11-25 23:22:18,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:22:18,980 INFO L225 Difference]: With dead ends: 8865 [2022-11-25 23:22:18,980 INFO L226 Difference]: Without dead ends: 8863 [2022-11-25 23:22:18,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:22:18,988 INFO L413 NwaCegarLoop]: 5800 mSDtfsCounter, 4213 mSDsluCounter, 15392 mSDsCounter, 0 mSdLazyCounter, 2103 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4222 SdHoareTripleChecker+Valid, 21192 SdHoareTripleChecker+Invalid, 2107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2103 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:22:18,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4222 Valid, 21192 Invalid, 2107 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2103 Invalid, 2 Unknown, 0 Unchecked, 9.1s Time] [2022-11-25 23:22:19,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8863 states. [2022-11-25 23:22:19,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8863 to 8853. [2022-11-25 23:22:19,992 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) [2022-11-25 23:22:20,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8853 states to 8853 states and 12758 transitions. [2022-11-25 23:22:20,038 INFO L78 Accepts]: Start accepts. Automaton has 8853 states and 12758 transitions. Word has length 71 [2022-11-25 23:22:20,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:22:20,039 INFO L495 AbstractCegarLoop]: Abstraction has 8853 states and 12758 transitions. [2022-11-25 23:22:20,040 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, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 23:22:20,040 INFO L276 IsEmpty]: Start isEmpty. Operand 8853 states and 12758 transitions. [2022-11-25 23:22:20,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-25 23:22:20,042 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:22:20,043 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 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] [2022-11-25 23:22:20,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 23:22:20,043 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)] === [2022-11-25 23:22:20,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:22:20,044 INFO L85 PathProgramCache]: Analyzing trace with hash 2115375649, now seen corresponding path program 1 times [2022-11-25 23:22:20,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:22:20,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547451128] [2022-11-25 23:22:20,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:22:20,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:22:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:22:20,388 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-11-25 23:22:20,388 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:22:20,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547451128] [2022-11-25 23:22:20,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547451128] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:22:20,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:22:20,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:22:20,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822353650] [2022-11-25 23:22:20,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:22:20,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:22:20,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:22:20,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:22:20,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:22:20,391 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, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 23:22:23,765 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 [] [2022-11-25 23:22:28,651 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 [] [2022-11-25 23:22:30,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:22:30,190 INFO L93 Difference]: Finished difference Result 8869 states and 12769 transitions. [2022-11-25 23:22:30,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:22:30,190 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, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 70 [2022-11-25 23:22:30,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:22:30,226 INFO L225 Difference]: With dead ends: 8869 [2022-11-25 23:22:30,226 INFO L226 Difference]: Without dead ends: 8867 [2022-11-25 23:22:30,230 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 [2022-11-25 23:22:30,231 INFO L413 NwaCegarLoop]: 5800 mSDtfsCounter, 4217 mSDsluCounter, 15392 mSDsCounter, 0 mSdLazyCounter, 2103 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4225 SdHoareTripleChecker+Valid, 21192 SdHoareTripleChecker+Invalid, 2107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2103 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:22:30,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4225 Valid, 21192 Invalid, 2107 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2103 Invalid, 2 Unknown, 0 Unchecked, 9.1s Time] [2022-11-25 23:22:30,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8867 states. [2022-11-25 23:22:31,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8867 to 8857. [2022-11-25 23:22:31,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8857 states, 5167 states have (on average 1.232436616992452) internal successors, (6368), 5313 states have internal predecessors, (6368), 3201 states have call successors, (3201), 488 states have call predecessors, (3201), 485 states have return successors, (3192), 3164 states have call predecessors, (3192), 3192 states have call successors, (3192) [2022-11-25 23:22:31,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8857 states to 8857 states and 12761 transitions. [2022-11-25 23:22:31,162 INFO L78 Accepts]: Start accepts. Automaton has 8857 states and 12761 transitions. Word has length 70 [2022-11-25 23:22:31,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:22:31,162 INFO L495 AbstractCegarLoop]: Abstraction has 8857 states and 12761 transitions. [2022-11-25 23:22:31,163 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, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 23:22:31,163 INFO L276 IsEmpty]: Start isEmpty. Operand 8857 states and 12761 transitions. [2022-11-25 23:22:31,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-25 23:22:31,164 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:22:31,164 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] [2022-11-25 23:22:31,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 23:22:31,165 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)] === [2022-11-25 23:22:31,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:22:31,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1767700696, now seen corresponding path program 1 times [2022-11-25 23:22:31,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:22:31,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454393458] [2022-11-25 23:22:31,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:22:31,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:22:31,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:22:31,593 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-11-25 23:22:31,593 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:22:31,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454393458] [2022-11-25 23:22:31,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454393458] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:22:31,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:22:31,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:22:31,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913055022] [2022-11-25 23:22:31,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:22:31,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:22:31,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:22:31,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:22:31,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:22:31,597 INFO L87 Difference]: Start difference. First operand 8857 states and 12761 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) [2022-11-25 23:22:35,514 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 [] [2022-11-25 23:22:39,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:22:42,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:22:43,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:22:43,418 INFO L93 Difference]: Finished difference Result 11905 states and 17141 transitions. [2022-11-25 23:22:43,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:22:43,419 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 [2022-11-25 23:22:43,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:22:43,493 INFO L225 Difference]: With dead ends: 11905 [2022-11-25 23:22:43,493 INFO L226 Difference]: Without dead ends: 11903 [2022-11-25 23:22:43,503 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 [2022-11-25 23:22:43,506 INFO L413 NwaCegarLoop]: 5473 mSDtfsCounter, 4208 mSDsluCounter, 14584 mSDsCounter, 0 mSdLazyCounter, 1846 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4215 SdHoareTripleChecker+Valid, 20057 SdHoareTripleChecker+Invalid, 1851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1846 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:22:43,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4215 Valid, 20057 Invalid, 1851 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1846 Invalid, 2 Unknown, 0 Unchecked, 11.1s Time] [2022-11-25 23:22:43,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11903 states. [2022-11-25 23:22:44,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11903 to 11894. [2022-11-25 23:22:44,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11894 states, 6956 states have (on average 1.2330362277170788) internal successors, (8577), 7156 states have internal predecessors, (8577), 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) [2022-11-25 23:22:44,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11894 states to 11894 states and 17132 transitions. [2022-11-25 23:22:44,974 INFO L78 Accepts]: Start accepts. Automaton has 11894 states and 17132 transitions. Word has length 75 [2022-11-25 23:22:44,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:22:44,976 INFO L495 AbstractCegarLoop]: Abstraction has 11894 states and 17132 transitions. [2022-11-25 23:22:44,976 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) [2022-11-25 23:22:44,976 INFO L276 IsEmpty]: Start isEmpty. Operand 11894 states and 17132 transitions. [2022-11-25 23:22:44,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-25 23:22:44,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:22:44,984 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] [2022-11-25 23:22:44,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 23:22:44,985 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)] === [2022-11-25 23:22:44,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:22:44,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1635642439, now seen corresponding path program 1 times [2022-11-25 23:22:44,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:22:44,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849420626] [2022-11-25 23:22:44,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:22:44,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:22:45,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:22:45,339 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-11-25 23:22:45,339 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:22:45,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849420626] [2022-11-25 23:22:45,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849420626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:22:45,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:22:45,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:22:45,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682901107] [2022-11-25 23:22:45,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:22:45,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:22:45,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:22:45,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:22:45,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:22:45,341 INFO L87 Difference]: Start difference. First operand 11894 states and 17132 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) [2022-11-25 23:22:50,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:22:54,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:22:57,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:22:59,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:23:00,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:00,148 INFO L93 Difference]: Finished difference Result 11912 states and 17145 transitions. [2022-11-25 23:23:00,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:23:00,148 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 [2022-11-25 23:23:00,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:00,204 INFO L225 Difference]: With dead ends: 11912 [2022-11-25 23:23:00,204 INFO L226 Difference]: Without dead ends: 11910 [2022-11-25 23:23:00,211 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 [2022-11-25 23:23:00,211 INFO L413 NwaCegarLoop]: 5442 mSDtfsCounter, 4236 mSDsluCounter, 14676 mSDsCounter, 0 mSdLazyCounter, 1858 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4242 SdHoareTripleChecker+Valid, 20118 SdHoareTripleChecker+Invalid, 1862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1858 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:00,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4242 Valid, 20118 Invalid, 1862 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1858 Invalid, 2 Unknown, 0 Unchecked, 13.9s Time] [2022-11-25 23:23:00,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11910 states. [2022-11-25 23:23:01,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11910 to 11902. [2022-11-25 23:23:01,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11902 states, 6962 states have (on average 1.2328353921286987) internal successors, (8583), 7162 states have internal predecessors, (8583), 4263 states have call successors, (4263), 680 states have call predecessors, (4263), 673 states have return successors, (4292), 4205 states have call predecessors, (4292), 4251 states have call successors, (4292) [2022-11-25 23:23:01,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11902 states to 11902 states and 17138 transitions. [2022-11-25 23:23:01,366 INFO L78 Accepts]: Start accepts. Automaton has 11902 states and 17138 transitions. Word has length 86 [2022-11-25 23:23:01,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:01,367 INFO L495 AbstractCegarLoop]: Abstraction has 11902 states and 17138 transitions. [2022-11-25 23:23:01,367 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) [2022-11-25 23:23:01,367 INFO L276 IsEmpty]: Start isEmpty. Operand 11902 states and 17138 transitions. [2022-11-25 23:23:01,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-25 23:23:01,369 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:01,370 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] [2022-11-25 23:23:01,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 23:23:01,370 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)] === [2022-11-25 23:23:01,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:01,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1344005781, now seen corresponding path program 1 times [2022-11-25 23:23:01,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:01,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130962367] [2022-11-25 23:23:01,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:01,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:01,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:01,978 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-25 23:23:01,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:01,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130962367] [2022-11-25 23:23:01,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130962367] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:01,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:01,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:23:01,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483427401] [2022-11-25 23:23:01,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:01,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:23:01,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:01,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:23:01,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:23:01,981 INFO L87 Difference]: Start difference. First operand 11902 states and 17138 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) [2022-11-25 23:23:06,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:23:07,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:23:11,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:23:14,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:14,468 INFO L93 Difference]: Finished difference Result 11911 states and 17143 transitions. [2022-11-25 23:23:14,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:23:14,469 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 [2022-11-25 23:23:14,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:14,534 INFO L225 Difference]: With dead ends: 11911 [2022-11-25 23:23:14,534 INFO L226 Difference]: Without dead ends: 11909 [2022-11-25 23:23:14,545 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 [2022-11-25 23:23:14,546 INFO L413 NwaCegarLoop]: 5476 mSDtfsCounter, 4204 mSDsluCounter, 14611 mSDsCounter, 0 mSdLazyCounter, 1832 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4205 SdHoareTripleChecker+Valid, 20087 SdHoareTripleChecker+Invalid, 1835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1832 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:14,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4205 Valid, 20087 Invalid, 1835 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1832 Invalid, 1 Unknown, 0 Unchecked, 11.7s Time] [2022-11-25 23:23:14,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11909 states. [2022-11-25 23:23:15,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11909 to 11902. [2022-11-25 23:23:15,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11902 states, 6962 states have (on average 1.2324044814708417) internal successors, (8580), 7162 states have internal predecessors, (8580), 4263 states have call successors, (4263), 680 states have call predecessors, (4263), 673 states have return successors, (4292), 4205 states have call predecessors, (4292), 4251 states have call successors, (4292) [2022-11-25 23:23:15,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11902 states to 11902 states and 17135 transitions. [2022-11-25 23:23:15,656 INFO L78 Accepts]: Start accepts. Automaton has 11902 states and 17135 transitions. Word has length 103 [2022-11-25 23:23:15,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:15,657 INFO L495 AbstractCegarLoop]: Abstraction has 11902 states and 17135 transitions. [2022-11-25 23:23:15,657 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) [2022-11-25 23:23:15,657 INFO L276 IsEmpty]: Start isEmpty. Operand 11902 states and 17135 transitions. [2022-11-25 23:23:15,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-25 23:23:15,658 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:15,658 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] [2022-11-25 23:23:15,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 23:23:15,659 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)] === [2022-11-25 23:23:15,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:15,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1374538296, now seen corresponding path program 1 times [2022-11-25 23:23:15,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:15,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574979305] [2022-11-25 23:23:15,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:15,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:15,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:16,078 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2022-11-25 23:23:16,078 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:16,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574979305] [2022-11-25 23:23:16,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574979305] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:16,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:16,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:23:16,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065713692] [2022-11-25 23:23:16,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:16,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:23:16,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:16,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:23:16,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:23:16,081 INFO L87 Difference]: Start difference. First operand 11902 states and 17135 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) [2022-11-25 23:23:19,550 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 [] [2022-11-25 23:23:24,537 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 [] [2022-11-25 23:23:26,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:26,215 INFO L93 Difference]: Finished difference Result 11916 states and 17145 transitions. [2022-11-25 23:23:26,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:23:26,216 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 [2022-11-25 23:23:26,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:26,271 INFO L225 Difference]: With dead ends: 11916 [2022-11-25 23:23:26,272 INFO L226 Difference]: Without dead ends: 11914 [2022-11-25 23:23:26,282 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 [2022-11-25 23:23:26,283 INFO L413 NwaCegarLoop]: 5800 mSDtfsCounter, 4215 mSDsluCounter, 15392 mSDsCounter, 0 mSdLazyCounter, 2103 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4220 SdHoareTripleChecker+Valid, 21192 SdHoareTripleChecker+Invalid, 2107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2103 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:26,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4220 Valid, 21192 Invalid, 2107 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2103 Invalid, 2 Unknown, 0 Unchecked, 9.3s Time] [2022-11-25 23:23:26,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11914 states. [2022-11-25 23:23:27,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11914 to 11906. [2022-11-25 23:23:27,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11906 states, 6965 states have (on average 1.2323043790380475) internal successors, (8583), 7165 states have internal predecessors, (8583), 4263 states have call successors, (4263), 681 states have call predecessors, (4263), 674 states have return successors, (4292), 4205 states have call predecessors, (4292), 4251 states have call successors, (4292) [2022-11-25 23:23:27,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11906 states to 11906 states and 17138 transitions. [2022-11-25 23:23:27,397 INFO L78 Accepts]: Start accepts. Automaton has 11906 states and 17138 transitions. Word has length 85 [2022-11-25 23:23:27,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:27,398 INFO L495 AbstractCegarLoop]: Abstraction has 11906 states and 17138 transitions. [2022-11-25 23:23:27,398 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) [2022-11-25 23:23:27,398 INFO L276 IsEmpty]: Start isEmpty. Operand 11906 states and 17138 transitions. [2022-11-25 23:23:27,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-25 23:23:27,400 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:27,401 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] [2022-11-25 23:23:27,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 23:23:27,401 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)] === [2022-11-25 23:23:27,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:27,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1161058265, now seen corresponding path program 1 times [2022-11-25 23:23:27,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:27,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726123026] [2022-11-25 23:23:27,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:27,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:27,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:27,806 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-25 23:23:27,806 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:27,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726123026] [2022-11-25 23:23:27,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726123026] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:27,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:27,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:23:27,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127450300] [2022-11-25 23:23:27,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:27,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:23:27,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:27,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:23:27,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:23:27,810 INFO L87 Difference]: Start difference. First operand 11906 states and 17138 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) [2022-11-25 23:23:31,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:23:33,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:23:37,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:23:40,931 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 [] [2022-11-25 23:23:41,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:41,603 INFO L93 Difference]: Finished difference Result 11922 states and 17150 transitions. [2022-11-25 23:23:41,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:23:41,603 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 [2022-11-25 23:23:41,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:41,647 INFO L225 Difference]: With dead ends: 11922 [2022-11-25 23:23:41,648 INFO L226 Difference]: Without dead ends: 11920 [2022-11-25 23:23:41,655 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 [2022-11-25 23:23:41,656 INFO L413 NwaCegarLoop]: 5447 mSDtfsCounter, 4234 mSDsluCounter, 14686 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4238 SdHoareTripleChecker+Valid, 20133 SdHoareTripleChecker+Invalid, 1861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:41,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4238 Valid, 20133 Invalid, 1861 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1857 Invalid, 2 Unknown, 0 Unchecked, 12.9s Time] [2022-11-25 23:23:41,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11920 states. [2022-11-25 23:23:42,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11920 to 11914. [2022-11-25 23:23:42,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11914 states, 6971 states have (on average 1.232104432649548) internal successors, (8589), 7171 states have internal predecessors, (8589), 4263 states have call successors, (4263), 683 states have call predecessors, (4263), 676 states have return successors, (4292), 4205 states have call predecessors, (4292), 4251 states have call successors, (4292) [2022-11-25 23:23:42,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11914 states to 11914 states and 17144 transitions. [2022-11-25 23:23:42,684 INFO L78 Accepts]: Start accepts. Automaton has 11914 states and 17144 transitions. Word has length 96 [2022-11-25 23:23:42,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:42,685 INFO L495 AbstractCegarLoop]: Abstraction has 11914 states and 17144 transitions. [2022-11-25 23:23:42,685 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) [2022-11-25 23:23:42,685 INFO L276 IsEmpty]: Start isEmpty. Operand 11914 states and 17144 transitions. [2022-11-25 23:23:42,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-25 23:23:42,689 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:42,689 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 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] [2022-11-25 23:23:42,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 23:23:42,690 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)] === [2022-11-25 23:23:42,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:42,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1956778904, now seen corresponding path program 1 times [2022-11-25 23:23:42,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:42,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930043695] [2022-11-25 23:23:42,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:42,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:42,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:43,057 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2022-11-25 23:23:43,058 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:43,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930043695] [2022-11-25 23:23:43,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930043695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:43,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:43,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:23:43,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886501799] [2022-11-25 23:23:43,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:43,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:23:43,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:43,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:23:43,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:23:43,061 INFO L87 Difference]: Start difference. First operand 11914 states and 17144 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, (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) [2022-11-25 23:23:46,807 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 [] [2022-11-25 23:23:52,055 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 [] [2022-11-25 23:23:53,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:53,696 INFO L93 Difference]: Finished difference Result 11928 states and 17154 transitions. [2022-11-25 23:23:53,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:23:53,697 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, (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 95 [2022-11-25 23:23:53,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:53,736 INFO L225 Difference]: With dead ends: 11928 [2022-11-25 23:23:53,736 INFO L226 Difference]: Without dead ends: 11926 [2022-11-25 23:23:53,743 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 [2022-11-25 23:23:53,744 INFO L413 NwaCegarLoop]: 5800 mSDtfsCounter, 4215 mSDsluCounter, 15392 mSDsCounter, 0 mSdLazyCounter, 2103 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4218 SdHoareTripleChecker+Valid, 21192 SdHoareTripleChecker+Invalid, 2107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2103 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:53,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4218 Valid, 21192 Invalid, 2107 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2103 Invalid, 2 Unknown, 0 Unchecked, 9.6s Time] [2022-11-25 23:23:53,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11926 states. [2022-11-25 23:23:54,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11926 to 11918. [2022-11-25 23:23:54,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11918 states, 6974 states have (on average 1.2320045884714654) internal successors, (8592), 7174 states have internal predecessors, (8592), 4263 states have call successors, (4263), 684 states have call predecessors, (4263), 677 states have return successors, (4292), 4205 states have call predecessors, (4292), 4251 states have call successors, (4292) [2022-11-25 23:23:54,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11918 states to 11918 states and 17147 transitions. [2022-11-25 23:23:54,676 INFO L78 Accepts]: Start accepts. Automaton has 11918 states and 17147 transitions. Word has length 95 [2022-11-25 23:23:54,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:54,676 INFO L495 AbstractCegarLoop]: Abstraction has 11918 states and 17147 transitions. [2022-11-25 23:23:54,676 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, (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) [2022-11-25 23:23:54,676 INFO L276 IsEmpty]: Start isEmpty. Operand 11918 states and 17147 transitions. [2022-11-25 23:23:54,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-25 23:23:54,678 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:54,678 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 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] [2022-11-25 23:23:54,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 23:23:54,679 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)] === [2022-11-25 23:23:54,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:54,679 INFO L85 PathProgramCache]: Analyzing trace with hash 717996161, now seen corresponding path program 1 times [2022-11-25 23:23:54,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:54,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078528141] [2022-11-25 23:23:54,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:54,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:54,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:55,046 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2022-11-25 23:23:55,047 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:55,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078528141] [2022-11-25 23:23:55,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078528141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:55,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:55,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:23:55,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362351562] [2022-11-25 23:23:55,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:55,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:23:55,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:55,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:23:55,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:23:55,049 INFO L87 Difference]: Start difference. First operand 11918 states and 17147 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, (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) [2022-11-25 23:24:02,994 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 [] [2022-11-25 23:24:06,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:06,308 INFO L93 Difference]: Finished difference Result 11934 states and 17159 transitions. [2022-11-25 23:24:06,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:24:06,309 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, (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 100 [2022-11-25 23:24:06,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:06,365 INFO L225 Difference]: With dead ends: 11934 [2022-11-25 23:24:06,365 INFO L226 Difference]: Without dead ends: 11932 [2022-11-25 23:24:06,375 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 [2022-11-25 23:24:06,376 INFO L413 NwaCegarLoop]: 5447 mSDtfsCounter, 4238 mSDsluCounter, 14686 mSDsCounter, 0 mSdLazyCounter, 1858 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4240 SdHoareTripleChecker+Valid, 20133 SdHoareTripleChecker+Invalid, 1861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1858 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:06,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4240 Valid, 20133 Invalid, 1861 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1858 Invalid, 1 Unknown, 0 Unchecked, 10.3s Time] [2022-11-25 23:24:06,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11932 states. [2022-11-25 23:24:07,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11932 to 11926. [2022-11-25 23:24:07,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11926 states, 6980 states have (on average 1.2318051575931233) internal successors, (8598), 7180 states have internal predecessors, (8598), 4263 states have call successors, (4263), 686 states have call predecessors, (4263), 679 states have return successors, (4292), 4205 states have call predecessors, (4292), 4251 states have call successors, (4292) [2022-11-25 23:24:07,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11926 states to 11926 states and 17153 transitions. [2022-11-25 23:24:07,270 INFO L78 Accepts]: Start accepts. Automaton has 11926 states and 17153 transitions. Word has length 100 [2022-11-25 23:24:07,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:07,271 INFO L495 AbstractCegarLoop]: Abstraction has 11926 states and 17153 transitions. [2022-11-25 23:24:07,271 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, (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) [2022-11-25 23:24:07,271 INFO L276 IsEmpty]: Start isEmpty. Operand 11926 states and 17153 transitions. [2022-11-25 23:24:07,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-25 23:24:07,274 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:07,274 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 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] [2022-11-25 23:24:07,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 23:24:07,274 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)] === [2022-11-25 23:24:07,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:07,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1063345280, now seen corresponding path program 1 times [2022-11-25 23:24:07,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:07,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774577954] [2022-11-25 23:24:07,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:07,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:07,609 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2022-11-25 23:24:07,610 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:07,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774577954] [2022-11-25 23:24:07,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774577954] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:07,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:07,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:24:07,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693066931] [2022-11-25 23:24:07,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:07,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:24:07,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:07,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:24:07,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:24:07,615 INFO L87 Difference]: Start difference. First operand 11926 states and 17153 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, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-25 23:24:11,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:13,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:17,086 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 [] [2022-11-25 23:24:20,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:20,182 INFO L93 Difference]: Finished difference Result 11942 states and 17165 transitions. [2022-11-25 23:24:20,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:24:20,182 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, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 111 [2022-11-25 23:24:20,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:20,223 INFO L225 Difference]: With dead ends: 11942 [2022-11-25 23:24:20,223 INFO L226 Difference]: Without dead ends: 11938 [2022-11-25 23:24:20,231 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 [2022-11-25 23:24:20,232 INFO L413 NwaCegarLoop]: 5447 mSDtfsCounter, 4234 mSDsluCounter, 14686 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4235 SdHoareTripleChecker+Valid, 20133 SdHoareTripleChecker+Invalid, 1861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:20,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4235 Valid, 20133 Invalid, 1861 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1857 Invalid, 2 Unknown, 0 Unchecked, 11.6s Time] [2022-11-25 23:24:20,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11938 states. [2022-11-25 23:24:21,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11938 to 11932. [2022-11-25 23:24:21,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11932 states, 6985 states have (on average 1.2314960629921259) internal successors, (8602), 7184 states have internal predecessors, (8602), 4263 states have call successors, (4263), 688 states have call predecessors, (4263), 680 states have return successors, (4292), 4205 states have call predecessors, (4292), 4251 states have call successors, (4292) [2022-11-25 23:24:21,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11932 states to 11932 states and 17157 transitions. [2022-11-25 23:24:21,114 INFO L78 Accepts]: Start accepts. Automaton has 11932 states and 17157 transitions. Word has length 111 [2022-11-25 23:24:21,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:21,115 INFO L495 AbstractCegarLoop]: Abstraction has 11932 states and 17157 transitions. [2022-11-25 23:24:21,115 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, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-25 23:24:21,115 INFO L276 IsEmpty]: Start isEmpty. Operand 11932 states and 17157 transitions. [2022-11-25 23:24:21,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-25 23:24:21,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:21,119 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 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, 1, 1] [2022-11-25 23:24:21,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 23:24:21,119 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)] === [2022-11-25 23:24:21,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:21,120 INFO L85 PathProgramCache]: Analyzing trace with hash 166070945, now seen corresponding path program 1 times [2022-11-25 23:24:21,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:21,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462519700] [2022-11-25 23:24:21,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:21,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:21,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:21,530 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2022-11-25 23:24:21,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:21,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462519700] [2022-11-25 23:24:21,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462519700] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:21,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:21,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:24:21,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104023480] [2022-11-25 23:24:21,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:21,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:24:21,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:21,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:24:21,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:24:21,534 INFO L87 Difference]: Start difference. First operand 11932 states and 17157 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, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-25 23:24:24,636 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 [] [2022-11-25 23:24:26,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:30,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:32,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:33,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:33,830 INFO L93 Difference]: Finished difference Result 23016 states and 33041 transitions. [2022-11-25 23:24:33,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:24:33,830 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, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 110 [2022-11-25 23:24:33,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:33,919 INFO L225 Difference]: With dead ends: 23016 [2022-11-25 23:24:33,920 INFO L226 Difference]: Without dead ends: 22904 [2022-11-25 23:24:33,932 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 [2022-11-25 23:24:33,933 INFO L413 NwaCegarLoop]: 5178 mSDtfsCounter, 3941 mSDsluCounter, 14134 mSDsCounter, 0 mSdLazyCounter, 1767 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3941 SdHoareTripleChecker+Valid, 19312 SdHoareTripleChecker+Invalid, 1771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1767 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:33,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3941 Valid, 19312 Invalid, 1771 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1767 Invalid, 1 Unknown, 0 Unchecked, 10.8s Time] [2022-11-25 23:24:33,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22904 states. [2022-11-25 23:24:35,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22904 to 22892. [2022-11-25 23:24:35,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22892 states, 13403 states have (on average 1.2320376035215996) internal successors, (16513), 13785 states have internal predecessors, (16513), 8170 states have call successors, (8170), 1329 states have call predecessors, (8170), 1315 states have return successors, (8230), 8056 states have call predecessors, (8230), 8148 states have call successors, (8230) [2022-11-25 23:24:35,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22892 states to 22892 states and 32913 transitions. [2022-11-25 23:24:35,826 INFO L78 Accepts]: Start accepts. Automaton has 22892 states and 32913 transitions. Word has length 110 [2022-11-25 23:24:35,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:35,826 INFO L495 AbstractCegarLoop]: Abstraction has 22892 states and 32913 transitions. [2022-11-25 23:24:35,827 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, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-25 23:24:35,827 INFO L276 IsEmpty]: Start isEmpty. Operand 22892 states and 32913 transitions. [2022-11-25 23:24:35,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-25 23:24:35,832 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:35,832 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] [2022-11-25 23:24:35,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 23:24:35,833 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)] === [2022-11-25 23:24:35,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:35,833 INFO L85 PathProgramCache]: Analyzing trace with hash 806918431, now seen corresponding path program 1 times [2022-11-25 23:24:35,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:35,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632955852] [2022-11-25 23:24:35,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:35,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:35,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:36,210 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-25 23:24:36,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:36,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632955852] [2022-11-25 23:24:36,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632955852] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:36,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:36,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:24:36,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473995206] [2022-11-25 23:24:36,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:36,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:24:36,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:36,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:24:36,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:24:36,214 INFO L87 Difference]: Start difference. First operand 22892 states and 32913 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) [2022-11-25 23:24:39,669 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 [] [2022-11-25 23:24:43,265 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 [] [2022-11-25 23:24:44,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:44,579 INFO L93 Difference]: Finished difference Result 45948 states and 67293 transitions. [2022-11-25 23:24:44,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:24:44,579 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 [2022-11-25 23:24:44,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:44,681 INFO L225 Difference]: With dead ends: 45948 [2022-11-25 23:24:44,681 INFO L226 Difference]: Without dead ends: 23072 [2022-11-25 23:24:44,815 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 [2022-11-25 23:24:44,816 INFO L413 NwaCegarLoop]: 3843 mSDtfsCounter, 10 mSDsluCounter, 3836 mSDsCounter, 0 mSdLazyCounter, 851 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 7679 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 851 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:44,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 7679 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 851 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-11-25 23:24:44,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23072 states. [2022-11-25 23:24:47,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23072 to 22904. [2022-11-25 23:24:47,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22904 states, 13415 states have (on average 1.2318300409988818) internal successors, (16525), 13797 states have internal predecessors, (16525), 8170 states have call successors, (8170), 1329 states have call predecessors, (8170), 1315 states have return successors, (8230), 8056 states have call predecessors, (8230), 8148 states have call successors, (8230) [2022-11-25 23:24:47,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22904 states to 22904 states and 32925 transitions. [2022-11-25 23:24:47,393 INFO L78 Accepts]: Start accepts. Automaton has 22904 states and 32925 transitions. Word has length 161 [2022-11-25 23:24:47,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:47,394 INFO L495 AbstractCegarLoop]: Abstraction has 22904 states and 32925 transitions. [2022-11-25 23:24:47,394 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) [2022-11-25 23:24:47,395 INFO L276 IsEmpty]: Start isEmpty. Operand 22904 states and 32925 transitions. [2022-11-25 23:24:47,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-11-25 23:24:47,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:47,402 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] [2022-11-25 23:24:47,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 23:24:47,402 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)] === [2022-11-25 23:24:47,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:47,403 INFO L85 PathProgramCache]: Analyzing trace with hash -680862910, now seen corresponding path program 1 times [2022-11-25 23:24:47,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:47,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368721029] [2022-11-25 23:24:47,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:47,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:47,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:48,293 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-25 23:24:48,294 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:48,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368721029] [2022-11-25 23:24:48,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368721029] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:48,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:48,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:24:48,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426054076] [2022-11-25 23:24:48,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:48,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:24:48,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:48,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:24:48,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:24:48,299 INFO L87 Difference]: Start difference. First operand 22904 states and 32925 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) [2022-11-25 23:24:52,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:56,605 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 [] [2022-11-25 23:24:58,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:58,012 INFO L93 Difference]: Finished difference Result 23158 states and 33246 transitions. [2022-11-25 23:24:58,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:24:58,013 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 [2022-11-25 23:24:58,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:58,147 INFO L225 Difference]: With dead ends: 23158 [2022-11-25 23:24:58,148 INFO L226 Difference]: Without dead ends: 22946 [2022-11-25 23:24:58,166 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 [2022-11-25 23:24:58,167 INFO L413 NwaCegarLoop]: 3907 mSDtfsCounter, 230 mSDsluCounter, 11586 mSDsCounter, 0 mSdLazyCounter, 1731 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 15493 SdHoareTripleChecker+Invalid, 1734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1731 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:58,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 15493 Invalid, 1734 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 1731 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2022-11-25 23:24:58,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22946 states. [2022-11-25 23:25:00,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22946 to 22946. [2022-11-25 23:25:00,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22946 states, 13443 states have (on average 1.2301569590121253) internal successors, (16537), 13815 states have internal predecessors, (16537), 8156 states have call successors, (8156), 1357 states have call predecessors, (8156), 1343 states have return successors, (8217), 8048 states have call predecessors, (8217), 8135 states have call successors, (8217) [2022-11-25 23:25:00,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22946 states to 22946 states and 32910 transitions. [2022-11-25 23:25:00,384 INFO L78 Accepts]: Start accepts. Automaton has 22946 states and 32910 transitions. Word has length 171 [2022-11-25 23:25:00,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:00,385 INFO L495 AbstractCegarLoop]: Abstraction has 22946 states and 32910 transitions. [2022-11-25 23:25:00,385 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) [2022-11-25 23:25:00,385 INFO L276 IsEmpty]: Start isEmpty. Operand 22946 states and 32910 transitions. [2022-11-25 23:25:00,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2022-11-25 23:25:00,396 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:00,397 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] [2022-11-25 23:25:00,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 23:25:00,397 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)] === [2022-11-25 23:25:00,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:00,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1180422290, now seen corresponding path program 1 times [2022-11-25 23:25:00,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:00,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145615549] [2022-11-25 23:25:00,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:00,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:00,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:01,450 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2022-11-25 23:25:01,451 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:01,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145615549] [2022-11-25 23:25:01,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145615549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:01,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:01,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:25:01,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457830842] [2022-11-25 23:25:01,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:01,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:25:01,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:01,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:25:01,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:25:01,454 INFO L87 Difference]: Start difference. First operand 22946 states and 32910 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) [2022-11-25 23:25:05,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:25:07,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:25:11,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:25:15,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:25:17,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:25:18,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:18,971 INFO L93 Difference]: Finished difference Result 22962 states and 32922 transitions. [2022-11-25 23:25:18,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:25:18,972 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 [2022-11-25 23:25:18,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:19,061 INFO L225 Difference]: With dead ends: 22962 [2022-11-25 23:25:19,061 INFO L226 Difference]: Without dead ends: 22960 [2022-11-25 23:25:19,075 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 [2022-11-25 23:25:19,076 INFO L413 NwaCegarLoop]: 5244 mSDtfsCounter, 4157 mSDsluCounter, 14280 mSDsCounter, 0 mSdLazyCounter, 1764 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4166 SdHoareTripleChecker+Valid, 19524 SdHoareTripleChecker+Invalid, 1770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1764 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:19,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4166 Valid, 19524 Invalid, 1770 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1764 Invalid, 4 Unknown, 0 Unchecked, 15.9s Time] [2022-11-25 23:25:19,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22960 states. [2022-11-25 23:25:21,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22960 to 22954. [2022-11-25 23:25:21,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22954 states, 13449 states have (on average 1.2300542791285598) internal successors, (16543), 13821 states have internal predecessors, (16543), 8156 states have call successors, (8156), 1359 states have call predecessors, (8156), 1345 states have return successors, (8217), 8048 states have call predecessors, (8217), 8135 states have call successors, (8217) [2022-11-25 23:25:21,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22954 states to 22954 states and 32916 transitions. [2022-11-25 23:25:21,320 INFO L78 Accepts]: Start accepts. Automaton has 22954 states and 32916 transitions. Word has length 280 [2022-11-25 23:25:21,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:21,320 INFO L495 AbstractCegarLoop]: Abstraction has 22954 states and 32916 transitions. [2022-11-25 23:25:21,321 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) [2022-11-25 23:25:21,321 INFO L276 IsEmpty]: Start isEmpty. Operand 22954 states and 32916 transitions. [2022-11-25 23:25:21,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-11-25 23:25:21,333 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:21,333 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 8, 8, 7, 7, 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] [2022-11-25 23:25:21,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-25 23:25:21,334 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)] === [2022-11-25 23:25:21,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:21,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1274931633, now seen corresponding path program 1 times [2022-11-25 23:25:21,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:21,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516236909] [2022-11-25 23:25:21,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:21,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:21,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:22,271 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2022-11-25 23:25:22,272 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:22,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516236909] [2022-11-25 23:25:22,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516236909] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:22,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:22,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:25:22,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351307987] [2022-11-25 23:25:22,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:22,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:25:22,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:22,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:25:22,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:25:22,274 INFO L87 Difference]: Start difference. First operand 22954 states and 32916 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, (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) [2022-11-25 23:25:26,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:25:28,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:25:32,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:25:36,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:25:37,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:37,515 INFO L93 Difference]: Finished difference Result 22970 states and 32928 transitions. [2022-11-25 23:25:37,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:25:37,516 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, (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 279 [2022-11-25 23:25:37,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:37,599 INFO L225 Difference]: With dead ends: 22970 [2022-11-25 23:25:37,599 INFO L226 Difference]: Without dead ends: 22968 [2022-11-25 23:25:37,611 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 [2022-11-25 23:25:37,613 INFO L413 NwaCegarLoop]: 5244 mSDtfsCounter, 4161 mSDsluCounter, 14280 mSDsCounter, 0 mSdLazyCounter, 1762 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4169 SdHoareTripleChecker+Valid, 19524 SdHoareTripleChecker+Invalid, 1768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1762 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:37,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4169 Valid, 19524 Invalid, 1768 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1762 Invalid, 4 Unknown, 0 Unchecked, 13.7s Time] [2022-11-25 23:25:37,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22968 states. [2022-11-25 23:25:39,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22968 to 22962. [2022-11-25 23:25:39,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22962 states, 13455 states have (on average 1.229951690821256) internal successors, (16549), 13827 states have internal predecessors, (16549), 8156 states have call successors, (8156), 1361 states have call predecessors, (8156), 1347 states have return successors, (8217), 8048 states have call predecessors, (8217), 8135 states have call successors, (8217) [2022-11-25 23:25:39,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22962 states to 22962 states and 32922 transitions. [2022-11-25 23:25:39,518 INFO L78 Accepts]: Start accepts. Automaton has 22962 states and 32922 transitions. Word has length 279 [2022-11-25 23:25:39,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:39,519 INFO L495 AbstractCegarLoop]: Abstraction has 22962 states and 32922 transitions. [2022-11-25 23:25:39,519 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, (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) [2022-11-25 23:25:39,519 INFO L276 IsEmpty]: Start isEmpty. Operand 22962 states and 32922 transitions. [2022-11-25 23:25:39,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-11-25 23:25:39,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:39,533 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 11, 10, 10, 9, 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] [2022-11-25 23:25:39,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-25 23:25:39,534 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)] === [2022-11-25 23:25:39,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:39,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1653970350, now seen corresponding path program 1 times [2022-11-25 23:25:39,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:39,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667822498] [2022-11-25 23:25:39,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:39,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:40,486 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2022-11-25 23:25:40,486 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:40,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667822498] [2022-11-25 23:25:40,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667822498] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:40,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:40,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:25:40,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702599736] [2022-11-25 23:25:40,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:40,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:25:40,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:40,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:25:40,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:25:40,489 INFO L87 Difference]: Start difference. First operand 22962 states and 32922 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, (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) [2022-11-25 23:25:43,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:25:48,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:25:50,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:25:51,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:25:52,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:52,483 INFO L93 Difference]: Finished difference Result 22988 states and 32947 transitions. [2022-11-25 23:25:52,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:25:52,486 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, (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 300 [2022-11-25 23:25:52,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:52,582 INFO L225 Difference]: With dead ends: 22988 [2022-11-25 23:25:52,582 INFO L226 Difference]: Without dead ends: 22984 [2022-11-25 23:25:52,596 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 [2022-11-25 23:25:52,597 INFO L413 NwaCegarLoop]: 3835 mSDtfsCounter, 4159 mSDsluCounter, 7647 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4164 SdHoareTripleChecker+Valid, 11482 SdHoareTripleChecker+Invalid, 1300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1297 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:52,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4164 Valid, 11482 Invalid, 1300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1297 Invalid, 2 Unknown, 0 Unchecked, 10.5s Time] [2022-11-25 23:25:52,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22984 states. [2022-11-25 23:25:54,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22984 to 22982. [2022-11-25 23:25:54,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22982 states, 13470 states have (on average 1.2296213808463252) internal successors, (16563), 13842 states have internal predecessors, (16563), 8156 states have call successors, (8156), 1366 states have call predecessors, (8156), 1352 states have return successors, (8217), 8048 states have call predecessors, (8217), 8135 states have call successors, (8217) [2022-11-25 23:25:54,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22982 states to 22982 states and 32936 transitions. [2022-11-25 23:25:54,955 INFO L78 Accepts]: Start accepts. Automaton has 22982 states and 32936 transitions. Word has length 300 [2022-11-25 23:25:54,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:54,956 INFO L495 AbstractCegarLoop]: Abstraction has 22982 states and 32936 transitions. [2022-11-25 23:25:54,956 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, (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) [2022-11-25 23:25:54,956 INFO L276 IsEmpty]: Start isEmpty. Operand 22982 states and 32936 transitions. [2022-11-25 23:25:54,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2022-11-25 23:25:54,968 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:54,968 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 12, 12, 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] [2022-11-25 23:25:54,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-25 23:25:54,969 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)] === [2022-11-25 23:25:54,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:54,969 INFO L85 PathProgramCache]: Analyzing trace with hash 982482730, now seen corresponding path program 1 times [2022-11-25 23:25:54,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:54,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236296279] [2022-11-25 23:25:54,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:54,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:55,885 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2022-11-25 23:25:55,886 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:55,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236296279] [2022-11-25 23:25:55,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236296279] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:55,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:55,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:25:55,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822400609] [2022-11-25 23:25:55,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:55,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:25:55,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:55,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:25:55,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:25:55,889 INFO L87 Difference]: Start difference. First operand 22982 states and 32936 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, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-25 23:25:59,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:26:01,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:26:05,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:26:09,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:26:10,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:10,348 INFO L93 Difference]: Finished difference Result 22996 states and 32946 transitions. [2022-11-25 23:26:10,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:26:10,349 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, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 304 [2022-11-25 23:26:10,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:10,436 INFO L225 Difference]: With dead ends: 22996 [2022-11-25 23:26:10,436 INFO L226 Difference]: Without dead ends: 22714 [2022-11-25 23:26:10,452 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 [2022-11-25 23:26:10,452 INFO L413 NwaCegarLoop]: 5246 mSDtfsCounter, 4161 mSDsluCounter, 14283 mSDsCounter, 0 mSdLazyCounter, 1765 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4164 SdHoareTripleChecker+Valid, 19529 SdHoareTripleChecker+Invalid, 1769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1765 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:10,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4164 Valid, 19529 Invalid, 1769 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 1765 Invalid, 2 Unknown, 0 Unchecked, 12.7s Time] [2022-11-25 23:26:10,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22714 states. [2022-11-25 23:26:12,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22714 to 22626. [2022-11-25 23:26:12,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22626 states, 13256 states have (on average 1.229707302353651) internal successors, (16301), 13615 states have internal predecessors, (16301), 8044 states have call successors, (8044), 1334 states have call predecessors, (8044), 1322 states have return successors, (8111), 7945 states have call predecessors, (8111), 8029 states have call successors, (8111) [2022-11-25 23:26:12,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22626 states to 22626 states and 32456 transitions. [2022-11-25 23:26:12,437 INFO L78 Accepts]: Start accepts. Automaton has 22626 states and 32456 transitions. Word has length 304 [2022-11-25 23:26:12,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:12,438 INFO L495 AbstractCegarLoop]: Abstraction has 22626 states and 32456 transitions. [2022-11-25 23:26:12,438 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, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-25 23:26:12,438 INFO L276 IsEmpty]: Start isEmpty. Operand 22626 states and 32456 transitions. [2022-11-25 23:26:12,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 896 [2022-11-25 23:26:12,467 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:12,468 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] [2022-11-25 23:26:12,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-25 23:26:12,468 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)] === [2022-11-25 23:26:12,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:12,469 INFO L85 PathProgramCache]: Analyzing trace with hash -2094950046, now seen corresponding path program 1 times [2022-11-25 23:26:12,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:26:12,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36402642] [2022-11-25 23:26:12,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:12,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:26:12,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:13,985 INFO L134 CoverageAnalysis]: Checked inductivity of 2774 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2774 trivial. 0 not checked. [2022-11-25 23:26:13,985 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:26:13,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36402642] [2022-11-25 23:26:13,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36402642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:13,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:13,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:26:13,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858302507] [2022-11-25 23:26:13,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:13,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:26:13,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:26:13,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:26:13,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:26:13,989 INFO L87 Difference]: Start difference. First operand 22626 states and 32456 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) [2022-11-25 23:26:16,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:26:20,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:26:22,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:22,074 INFO L93 Difference]: Finished difference Result 44949 states and 64920 transitions. [2022-11-25 23:26:22,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:26:22,074 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 [2022-11-25 23:26:22,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:22,160 INFO L225 Difference]: With dead ends: 44949 [2022-11-25 23:26:22,160 INFO L226 Difference]: Without dead ends: 22337 [2022-11-25 23:26:22,235 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 [2022-11-25 23:26:22,236 INFO L413 NwaCegarLoop]: 4807 mSDtfsCounter, 878 mSDsluCounter, 3900 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 8707 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:22,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 8707 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 917 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-11-25 23:26:22,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22337 states. [2022-11-25 23:26:24,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22337 to 18869. [2022-11-25 23:26:24,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18869 states, 11035 states have (on average 1.2270956048935207) internal successors, (13541), 11333 states have internal predecessors, (13541), 6699 states have call successors, (6699), 1143 states have call predecessors, (6699), 1131 states have return successors, (6766), 6615 states have call predecessors, (6766), 6684 states have call successors, (6766) [2022-11-25 23:26:24,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18869 states to 18869 states and 27006 transitions. [2022-11-25 23:26:24,399 INFO L78 Accepts]: Start accepts. Automaton has 18869 states and 27006 transitions. Word has length 895 [2022-11-25 23:26:24,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:24,400 INFO L495 AbstractCegarLoop]: Abstraction has 18869 states and 27006 transitions. [2022-11-25 23:26:24,401 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) [2022-11-25 23:26:24,401 INFO L276 IsEmpty]: Start isEmpty. Operand 18869 states and 27006 transitions. [2022-11-25 23:26:24,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 901 [2022-11-25 23:26:24,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:24,428 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] [2022-11-25 23:26:24,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-25 23:26:24,428 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)] === [2022-11-25 23:26:24,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:24,429 INFO L85 PathProgramCache]: Analyzing trace with hash -503509282, now seen corresponding path program 1 times [2022-11-25 23:26:24,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:26:24,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222746356] [2022-11-25 23:26:24,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:24,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:26:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:25,962 INFO L134 CoverageAnalysis]: Checked inductivity of 2774 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2774 trivial. 0 not checked. [2022-11-25 23:26:25,963 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:26:25,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222746356] [2022-11-25 23:26:25,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222746356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:25,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:25,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:26:25,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083597533] [2022-11-25 23:26:25,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:25,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:26:25,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:26:25,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:26:25,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:26:25,966 INFO L87 Difference]: Start difference. First operand 18869 states and 27006 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) [2022-11-25 23:26:30,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:26:35,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:26:38,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:38,139 INFO L93 Difference]: Finished difference Result 39911 states and 57937 transitions. [2022-11-25 23:26:38,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:26:38,140 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 [2022-11-25 23:26:38,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:38,213 INFO L225 Difference]: With dead ends: 39911 [2022-11-25 23:26:38,213 INFO L226 Difference]: Without dead ends: 22907 [2022-11-25 23:26:38,254 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 [2022-11-25 23:26:38,255 INFO L413 NwaCegarLoop]: 4598 mSDtfsCounter, 620 mSDsluCounter, 8504 mSDsCounter, 0 mSdLazyCounter, 1537 mSolverCounterSat, 185 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 13102 SdHoareTripleChecker+Invalid, 1724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 1537 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:38,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 13102 Invalid, 1724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 1537 Invalid, 2 Unknown, 0 Unchecked, 9.9s Time] [2022-11-25 23:26:38,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22907 states. [2022-11-25 23:26:40,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22907 to 18881. [2022-11-25 23:26:40,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18881 states, 11047 states have (on average 1.2268489182583506) internal successors, (13553), 11345 states have internal predecessors, (13553), 6699 states have call successors, (6699), 1143 states have call predecessors, (6699), 1131 states have return successors, (6766), 6615 states have call predecessors, (6766), 6684 states have call successors, (6766) [2022-11-25 23:26:40,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18881 states to 18881 states and 27018 transitions. [2022-11-25 23:26:40,137 INFO L78 Accepts]: Start accepts. Automaton has 18881 states and 27018 transitions. Word has length 900 [2022-11-25 23:26:40,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:40,138 INFO L495 AbstractCegarLoop]: Abstraction has 18881 states and 27018 transitions. [2022-11-25 23:26:40,138 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) [2022-11-25 23:26:40,138 INFO L276 IsEmpty]: Start isEmpty. Operand 18881 states and 27018 transitions. [2022-11-25 23:26:40,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 926 [2022-11-25 23:26:40,156 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:40,156 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] [2022-11-25 23:26:40,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-25 23:26:40,157 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)] === [2022-11-25 23:26:40,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:40,157 INFO L85 PathProgramCache]: Analyzing trace with hash -790004091, now seen corresponding path program 1 times [2022-11-25 23:26:40,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:26:40,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836826548] [2022-11-25 23:26:40,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:40,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:26:40,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:41,955 INFO L134 CoverageAnalysis]: Checked inductivity of 2778 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2772 trivial. 0 not checked. [2022-11-25 23:26:41,955 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:26:41,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836826548] [2022-11-25 23:26:41,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836826548] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:26:41,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761903248] [2022-11-25 23:26:41,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:41,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:26:41,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b799d2-84c5-4f97-8d68-298d7abdbd67/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:26:41,962 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b799d2-84c5-4f97-8d68-298d7abdbd67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:26:41,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b799d2-84c5-4f97-8d68-298d7abdbd67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:26:45,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:45,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 8238 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 23:26:45,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:26:45,461 INFO L134 CoverageAnalysis]: Checked inductivity of 2778 backedges. 839 proven. 0 refuted. 0 times theorem prover too weak. 1939 trivial. 0 not checked. [2022-11-25 23:26:45,469 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:26:45,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761903248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:45,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:26:45,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-11-25 23:26:45,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662247342] [2022-11-25 23:26:45,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:45,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:26:45,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:26:45,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:26:45,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:26:45,473 INFO L87 Difference]: Start difference. First operand 18881 states and 27018 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) [2022-11-25 23:26:49,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:26:52,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:26:53,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:53,844 INFO L93 Difference]: Finished difference Result 37853 states and 54634 transitions. [2022-11-25 23:26:53,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:26:53,845 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 [2022-11-25 23:26:53,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:53,935 INFO L225 Difference]: With dead ends: 37853 [2022-11-25 23:26:53,935 INFO L226 Difference]: Without dead ends: 18986 [2022-11-25 23:26:53,988 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 [2022-11-25 23:26:53,989 INFO L413 NwaCegarLoop]: 3838 mSDtfsCounter, 10 mSDsluCounter, 3831 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 7669 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:53,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 7669 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 852 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-11-25 23:26:54,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18986 states. [2022-11-25 23:26:55,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18986 to 18888. [2022-11-25 23:26:55,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18888 states, 11054 states have (on average 1.2267052650624208) internal successors, (13560), 11352 states have internal predecessors, (13560), 6699 states have call successors, (6699), 1143 states have call predecessors, (6699), 1131 states have return successors, (6766), 6615 states have call predecessors, (6766), 6684 states have call successors, (6766) [2022-11-25 23:26:55,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18888 states to 18888 states and 27025 transitions. [2022-11-25 23:26:55,922 INFO L78 Accepts]: Start accepts. Automaton has 18888 states and 27025 transitions. Word has length 925 [2022-11-25 23:26:55,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:55,923 INFO L495 AbstractCegarLoop]: Abstraction has 18888 states and 27025 transitions. [2022-11-25 23:26:55,923 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) [2022-11-25 23:26:55,923 INFO L276 IsEmpty]: Start isEmpty. Operand 18888 states and 27025 transitions. [2022-11-25 23:26:55,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 956 [2022-11-25 23:26:55,942 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:55,942 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] [2022-11-25 23:26:55,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b799d2-84c5-4f97-8d68-298d7abdbd67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 23:26:56,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b799d2-84c5-4f97-8d68-298d7abdbd67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-11-25 23:26:56,143 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)] === [2022-11-25 23:26:56,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:56,144 INFO L85 PathProgramCache]: Analyzing trace with hash -663383863, now seen corresponding path program 1 times [2022-11-25 23:26:56,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:26:56,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937797991] [2022-11-25 23:26:56,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:56,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:26:56,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:58,626 INFO L134 CoverageAnalysis]: Checked inductivity of 3102 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3102 trivial. 0 not checked. [2022-11-25 23:26:58,626 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:26:58,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937797991] [2022-11-25 23:26:58,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937797991] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:58,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:58,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:26:58,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569459781] [2022-11-25 23:26:58,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:58,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:26:58,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:26:58,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:26:58,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:26:58,637 INFO L87 Difference]: Start difference. First operand 18888 states and 27025 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) [2022-11-25 23:27:02,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:27:04,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:27:08,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:27:12,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:27:13,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:27:13,572 INFO L93 Difference]: Finished difference Result 18897 states and 27031 transitions. [2022-11-25 23:27:13,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:27:13,574 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 [2022-11-25 23:27:13,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:27:13,639 INFO L225 Difference]: With dead ends: 18897 [2022-11-25 23:27:13,639 INFO L226 Difference]: Without dead ends: 18895 [2022-11-25 23:27:13,648 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 [2022-11-25 23:27:13,649 INFO L413 NwaCegarLoop]: 5384 mSDtfsCounter, 3836 mSDsluCounter, 14566 mSDsCounter, 0 mSdLazyCounter, 1873 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3837 SdHoareTripleChecker+Valid, 19950 SdHoareTripleChecker+Invalid, 1878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1873 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:27:13,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3837 Valid, 19950 Invalid, 1878 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1873 Invalid, 3 Unknown, 0 Unchecked, 13.2s Time] [2022-11-25 23:27:13,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18895 states. [2022-11-25 23:27:15,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18895 to 18888. [2022-11-25 23:27:15,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18888 states, 11054 states have (on average 1.2264338700922743) internal successors, (13557), 11352 states have internal predecessors, (13557), 6699 states have call successors, (6699), 1143 states have call predecessors, (6699), 1131 states have return successors, (6766), 6615 states have call predecessors, (6766), 6684 states have call successors, (6766) [2022-11-25 23:27:15,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18888 states to 18888 states and 27022 transitions. [2022-11-25 23:27:15,290 INFO L78 Accepts]: Start accepts. Automaton has 18888 states and 27022 transitions. Word has length 955 [2022-11-25 23:27:15,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:27:15,291 INFO L495 AbstractCegarLoop]: Abstraction has 18888 states and 27022 transitions. [2022-11-25 23:27:15,291 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) [2022-11-25 23:27:15,291 INFO L276 IsEmpty]: Start isEmpty. Operand 18888 states and 27022 transitions. [2022-11-25 23:27:15,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2022-11-25 23:27:15,308 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:27:15,309 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] [2022-11-25 23:27:15,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-25 23:27:15,309 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)] === [2022-11-25 23:27:15,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:27:15,310 INFO L85 PathProgramCache]: Analyzing trace with hash -2068237233, now seen corresponding path program 1 times [2022-11-25 23:27:15,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:27:15,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389335885] [2022-11-25 23:27:15,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:27:15,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:31:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat