./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.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_bb7e4ee1-7929-4665-b37a-74faa6c0ebde/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e4ee1-7929-4665-b37a-74faa6c0ebde/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_bb7e4ee1-7929-4665-b37a-74faa6c0ebde/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e4ee1-7929-4665-b37a-74faa6c0ebde/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e4ee1-7929-4665-b37a-74faa6c0ebde/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_bb7e4ee1-7929-4665-b37a-74faa6c0ebde/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 463dbca1530ea0e57c159e9405d50f794488f63283b3e27908f44b92b1921358 --- 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 23:19:23,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:19:23,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:19:23,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:19:23,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:19:23,343 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:19:23,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:19:23,351 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:19:23,354 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:19:23,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:19:23,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:19:23,366 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:19:23,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:19:23,370 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:19:23,372 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:19:23,375 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:19:23,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:19:23,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:19:23,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:19:23,389 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:19:23,391 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:19:23,394 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:19:23,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:19:23,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:19:23,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:19:23,411 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:19:23,411 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:19:23,412 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:19:23,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:19:23,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:19:23,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:19:23,417 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:19:23,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:19:23,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:19:23,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:19:23,423 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:19:23,423 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:19:23,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:19:23,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:19:23,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:19:23,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:19:23,428 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e4ee1-7929-4665-b37a-74faa6c0ebde/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 23:19:23,479 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:19:23,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:19:23,480 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:19:23,480 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:19:23,481 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:19:23,482 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:19:23,482 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:19:23,482 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:19:23,483 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:19:23,483 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:19:23,484 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:19:23,485 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:19:23,485 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:19:23,485 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:19:23,485 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:19:23,486 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:19:23,486 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:19:23,486 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:19:23,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:19:23,488 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:19:23,488 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:19:23,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:19:23,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:19:23,489 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:19:23,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:19:23,489 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:19:23,490 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:19:23,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:19:23,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:19:23,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:19:23,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:19:23,492 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:19:23,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:19:23,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:19:23,493 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:19:23,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:19:23,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:19:23,493 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:19:23,494 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_bb7e4ee1-7929-4665-b37a-74faa6c0ebde/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e4ee1-7929-4665-b37a-74faa6c0ebde/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 463dbca1530ea0e57c159e9405d50f794488f63283b3e27908f44b92b1921358 [2022-11-25 23:19:23,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:19:23,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:19:23,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:19:23,890 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:19:23,891 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:19:23,892 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e4ee1-7929-4665-b37a-74faa6c0ebde/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2022-11-25 23:19:27,404 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:19:28,247 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:19:28,248 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e4ee1-7929-4665-b37a-74faa6c0ebde/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2022-11-25 23:19:28,327 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e4ee1-7929-4665-b37a-74faa6c0ebde/bin/utaipan-ByfvJB40ur/data/1e377f913/a16c34ad67dd4d67b10e1ef68dd8fcfa/FLAGb9c7aa3e0 [2022-11-25 23:19:28,349 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e4ee1-7929-4665-b37a-74faa6c0ebde/bin/utaipan-ByfvJB40ur/data/1e377f913/a16c34ad67dd4d67b10e1ef68dd8fcfa [2022-11-25 23:19:28,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:19:28,355 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:19:28,359 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:19:28,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:19:28,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:19:28,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:19:28" (1/1) ... [2022-11-25 23:19:28,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ad1d584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:28, skipping insertion in model container [2022-11-25 23:19:28,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:19:28" (1/1) ... [2022-11-25 23:19:28,378 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:19:28,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:19:29,386 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-25 23:19:29,645 WARN L623 FunctionHandler]: Unknown extern function __bitmap_weight [2022-11-25 23:19:30,111 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 23:19:30,125 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 23:19:30,172 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 23:19:30,213 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 23:19:30,254 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 23:19:30,374 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 23:19:30,468 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-11-25 23:19:30,575 WARN L623 FunctionHandler]: Unknown extern function __get_page_tail [2022-11-25 23:19:30,582 WARN L623 FunctionHandler]: Unknown extern function dump_page [2022-11-25 23:19:30,638 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:19:30,746 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-25 23:19:30,758 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-25 23:19:30,768 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_cpu [2022-11-25 23:19:30,779 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_device [2022-11-25 23:19:30,822 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-25 23:19:30,832 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:19:30,835 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-25 23:19:30,844 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-11-25 23:19:30,937 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:19:31,019 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-25 23:19:31,050 WARN L623 FunctionHandler]: Unknown extern function skb_pad [2022-11-25 23:19:31,138 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 23:19:31,139 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 23:19:31,152 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:19:31,153 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:19:31,195 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-11-25 23:19:31,202 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-11-25 23:19:31,323 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_byte [2022-11-25 23:19:31,332 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-11-25 23:19:31,339 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_dword [2022-11-25 23:19:31,345 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_byte [2022-11-25 23:19:31,352 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_word [2022-11-25 23:19:31,359 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_dword [2022-11-25 23:19:31,484 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-11-25 23:19:31,530 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 23:19:31,726 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:31,735 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:31,759 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-11-25 23:19:31,760 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:19:31,768 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:19:31,794 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 23:19:31,807 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:31,808 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 23:19:31,828 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:19:31,829 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:19:31,830 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:19:31,842 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:31,843 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:31,854 WARN L623 FunctionHandler]: Unknown extern function request_firmware [2022-11-25 23:19:31,855 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:19:31,856 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:19:31,857 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-11-25 23:19:31,859 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-11-25 23:19:31,885 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:31,887 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:31,889 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-25 23:19:31,899 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:19:31,901 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-25 23:19:31,902 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:19:31,903 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:19:31,921 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:19:31,923 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:31,924 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:31,994 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 23:19:32,015 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 23:19:32,026 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:19:32,036 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:19:32,048 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:19:32,050 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-25 23:19:32,051 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:19:32,051 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:19:32,069 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:32,070 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:19:32,071 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:19:32,071 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:19:32,072 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:19:32,072 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:19:32,073 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:19:32,074 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:32,074 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:32,075 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:32,076 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:32,076 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:32,077 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:32,078 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:32,087 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:19:32,089 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:19:32,092 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:32,111 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:19:32,125 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:19:32,183 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_1997 [2022-11-25 23:19:32,186 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:19:32,198 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_2032 [2022-11-25 23:19:32,199 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:19:32,212 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:19:32,214 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_2106 [2022-11-25 23:19:32,216 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_2125 [2022-11-25 23:19:32,217 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:19:32,218 WARN L623 FunctionHandler]: Unknown extern function csum_partial [2022-11-25 23:19:32,218 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_2142 [2022-11-25 23:19:32,219 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 23:19:32,234 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 23:19:32,253 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:19:32,267 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:19:32,278 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 23:19:32,292 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:19:32,301 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:19:32,341 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:32,342 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:32,343 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:32,345 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:32,347 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:32,348 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:32,351 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:32,400 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:32,403 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 23:19:32,408 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_2843 [2022-11-25 23:19:32,411 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:19:32,451 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-25 23:19:32,480 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:32,481 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:32,482 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:32,540 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:19:32,540 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-11-25 23:19:32,558 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-11-25 23:19:32,560 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:19:32,564 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:19:32,575 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:32,576 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:32,576 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:32,577 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:32,602 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:19:32,611 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:19:32,612 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:19:32,613 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:19:32,621 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-25 23:19:32,629 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:32,629 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-11-25 23:19:32,637 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:32,638 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:32,638 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:32,639 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:32,658 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-11-25 23:19:32,677 WARN L623 FunctionHandler]: Unknown extern function flush_work [2022-11-25 23:19:32,734 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 23:19:32,736 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-25 23:19:32,748 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:19:32,750 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:19:32,776 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 23:19:32,778 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:32,779 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:19:32,780 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:19:32,787 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 23:19:32,788 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:19:32,820 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:32,821 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:32,829 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:19:32,830 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:19:32,830 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:19:32,928 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 23:19:32,929 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:19:32,947 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:19:32,947 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 23:19:32,948 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:19:32,948 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:19:32,949 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-11-25 23:19:32,950 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:19:32,950 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 23:19:32,951 WARN L623 FunctionHandler]: Unknown extern function pci_try_set_mwi [2022-11-25 23:19:32,951 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:19:32,952 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:19:33,015 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:19:33,015 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:19:33,017 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:19:33,017 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:19:33,018 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:19:33,018 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:19:33,019 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:19:33,020 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:19:33,020 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 23:19:33,021 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-25 23:19:33,021 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 23:19:33,022 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 23:19:33,023 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:19:33,024 WARN L623 FunctionHandler]: Unknown extern function pci_iomap [2022-11-25 23:19:33,024 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:19:33,025 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-11-25 23:19:33,026 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:19:33,029 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:19:33,029 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:19:33,032 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 23:19:33,033 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:19:33,033 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-11-25 23:19:33,034 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 23:19:33,034 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:19:33,042 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 23:19:33,043 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 23:19:33,043 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-11-25 23:19:33,044 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:19:33,044 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-11-25 23:19:33,045 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 23:19:33,045 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:19:33,053 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 23:19:33,053 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 23:19:33,054 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:19:33,061 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:19:33,062 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 23:19:33,063 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-25 23:19:33,063 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:19:33,476 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 23:19:33,477 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 23:19:33,479 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 23:19:33,482 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 23:19:33,482 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 23:19:33,493 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 23:19:33,496 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-25 23:19:33,499 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 23:19:33,500 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 23:19:33,502 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 23:19:33,503 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 23:19:33,504 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 23:19:33,505 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:33,505 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:33,506 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-11-25 23:19:33,506 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:33,507 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:33,507 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:33,508 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 23:19:33,508 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:33,509 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:33,510 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:33,510 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 23:19:33,511 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:33,511 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:33,512 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:33,512 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:33,512 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:33,513 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:33,513 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:33,514 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:33,514 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-25 23:19:33,515 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 23:19:33,515 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:19:33,516 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 23:19:33,516 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:19:33,517 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:33,517 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:33,518 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-25 23:19:33,518 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-25 23:19:33,599 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-25 23:19:33,600 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 23:19:33,614 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 23:19:34,756 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_bb7e4ee1-7929-4665-b37a-74faa6c0ebde/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487146,487159] [2022-11-25 23:19:34,762 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_bb7e4ee1-7929-4665-b37a-74faa6c0ebde/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487315,487328] [2022-11-25 23:19:34,763 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_bb7e4ee1-7929-4665-b37a-74faa6c0ebde/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487482,487495] [2022-11-25 23:19:34,764 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_bb7e4ee1-7929-4665-b37a-74faa6c0ebde/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487650,487663] [2022-11-25 23:19:34,773 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:19:34,774 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:19:34,775 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:19:34,776 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:19:34,794 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:19:34,796 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:19:34,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:19:34,846 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:19:35,048 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-25 23:19:35,052 WARN L623 FunctionHandler]: Unknown extern function __bitmap_weight [2022-11-25 23:19:35,056 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 23:19:35,057 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 23:19:35,058 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 23:19:35,059 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 23:19:35,060 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 23:19:35,062 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 23:19:35,064 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-11-25 23:19:35,067 WARN L623 FunctionHandler]: Unknown extern function __get_page_tail [2022-11-25 23:19:35,068 WARN L623 FunctionHandler]: Unknown extern function dump_page [2022-11-25 23:19:35,069 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:19:35,074 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-25 23:19:35,075 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-25 23:19:35,077 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_cpu [2022-11-25 23:19:35,078 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_device [2022-11-25 23:19:35,081 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-25 23:19:35,082 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:19:35,083 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-25 23:19:35,083 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-11-25 23:19:35,088 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:19:35,097 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-25 23:19:35,100 WARN L623 FunctionHandler]: Unknown extern function skb_pad [2022-11-25 23:19:35,102 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 23:19:35,103 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 23:19:35,104 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:19:35,105 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:19:35,107 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-11-25 23:19:35,107 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-11-25 23:19:35,108 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_byte [2022-11-25 23:19:35,111 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-11-25 23:19:35,114 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_dword [2022-11-25 23:19:35,117 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_byte [2022-11-25 23:19:35,120 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_word [2022-11-25 23:19:35,122 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_dword [2022-11-25 23:19:35,128 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-11-25 23:19:35,130 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 23:19:35,141 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:35,143 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:35,145 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-11-25 23:19:35,145 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:19:35,147 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:19:35,151 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 23:19:35,154 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:35,155 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 23:19:35,158 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:19:35,159 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:19:35,160 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:19:35,163 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:35,164 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:35,166 WARN L623 FunctionHandler]: Unknown extern function request_firmware [2022-11-25 23:19:35,166 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:19:35,167 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:19:35,168 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-11-25 23:19:35,169 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-11-25 23:19:35,174 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:35,176 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:35,177 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-25 23:19:35,179 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:19:35,181 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-25 23:19:35,182 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:19:35,183 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:19:35,185 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:19:35,187 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:35,188 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:35,207 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 23:19:35,212 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 23:19:35,214 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:19:35,216 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:19:35,220 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:19:35,221 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-25 23:19:35,222 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:19:35,223 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:19:35,225 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:35,226 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:19:35,226 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:19:35,227 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:19:35,227 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:19:35,228 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:19:35,228 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:19:35,229 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:35,230 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:35,230 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:35,231 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:35,232 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:35,232 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:35,233 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:35,234 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:19:35,235 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:19:35,238 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:35,241 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:19:35,247 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:19:35,253 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_1997 [2022-11-25 23:19:35,255 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:19:35,257 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_2032 [2022-11-25 23:19:35,257 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:19:35,262 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:19:35,264 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_2106 [2022-11-25 23:19:35,266 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_2125 [2022-11-25 23:19:35,267 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:19:35,268 WARN L623 FunctionHandler]: Unknown extern function csum_partial [2022-11-25 23:19:35,269 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_2142 [2022-11-25 23:19:35,269 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 23:19:35,272 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 23:19:35,276 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:19:35,281 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:19:35,285 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 23:19:35,288 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:19:35,290 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:19:35,296 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:35,296 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:35,297 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:35,297 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:35,299 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:35,300 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:35,300 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:35,305 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:35,307 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 23:19:35,311 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_2843 [2022-11-25 23:19:35,313 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:19:35,321 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-25 23:19:35,327 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:35,328 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:35,329 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:35,348 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:19:35,349 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-11-25 23:19:35,352 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-11-25 23:19:35,353 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:19:35,356 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:19:35,359 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:35,361 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:35,361 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:35,362 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:35,369 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:19:35,373 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:19:35,375 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:19:35,375 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:19:35,377 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-25 23:19:35,378 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:35,378 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-11-25 23:19:35,379 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:35,380 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:35,380 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:35,381 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:35,383 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-11-25 23:19:35,386 WARN L623 FunctionHandler]: Unknown extern function flush_work [2022-11-25 23:19:35,394 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 23:19:35,395 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-25 23:19:35,399 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:19:35,400 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:19:35,403 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 23:19:35,405 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:19:35,405 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:19:35,406 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:19:35,407 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 23:19:35,407 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:19:35,419 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:35,420 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:19:35,421 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:19:35,422 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:19:35,423 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:19:35,437 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 23:19:35,438 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:19:35,443 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:19:35,443 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 23:19:35,444 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:19:35,444 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:19:35,446 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-11-25 23:19:35,447 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:19:35,447 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 23:19:35,448 WARN L623 FunctionHandler]: Unknown extern function pci_try_set_mwi [2022-11-25 23:19:35,448 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:19:35,449 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:19:35,450 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:19:35,450 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:19:35,452 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:19:35,452 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:19:35,453 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:19:35,453 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:19:35,454 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:19:35,505 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:19:35,506 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 23:19:35,506 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-25 23:19:35,507 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 23:19:35,507 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 23:19:35,508 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:19:35,508 WARN L623 FunctionHandler]: Unknown extern function pci_iomap [2022-11-25 23:19:35,509 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:19:35,509 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-11-25 23:19:35,510 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:19:35,512 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:19:35,512 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:19:35,514 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 23:19:35,514 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:19:35,515 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-11-25 23:19:35,515 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 23:19:35,515 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:19:35,517 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 23:19:35,517 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 23:19:35,517 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-11-25 23:19:35,517 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:19:35,518 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-11-25 23:19:35,519 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 23:19:35,519 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:19:35,520 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 23:19:35,520 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 23:19:35,521 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:19:35,521 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:19:35,522 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 23:19:35,522 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-25 23:19:35,523 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:19:35,531 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 23:19:35,532 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 23:19:35,533 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 23:19:35,535 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 23:19:35,535 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 23:19:35,548 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 23:19:35,550 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-25 23:19:35,565 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 23:19:35,566 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 23:19:35,571 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 23:19:35,572 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 23:19:35,573 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 23:19:35,573 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:35,574 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:35,575 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-11-25 23:19:35,575 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:35,575 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:35,576 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:35,576 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 23:19:35,577 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:35,578 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:35,578 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:35,578 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 23:19:35,579 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:35,579 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:35,580 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:35,580 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:35,580 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:35,581 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:35,581 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:35,581 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:35,582 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-25 23:19:35,582 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 23:19:35,583 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:19:35,583 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 23:19:35,583 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:19:35,584 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:35,584 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 23:19:35,584 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-25 23:19:35,585 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-25 23:19:35,588 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-25 23:19:35,588 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 23:19:35,589 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 23:19:35,623 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_bb7e4ee1-7929-4665-b37a-74faa6c0ebde/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487146,487159] [2022-11-25 23:19:35,623 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_bb7e4ee1-7929-4665-b37a-74faa6c0ebde/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487315,487328] [2022-11-25 23:19:35,624 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_bb7e4ee1-7929-4665-b37a-74faa6c0ebde/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487482,487495] [2022-11-25 23:19:35,624 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_bb7e4ee1-7929-4665-b37a-74faa6c0ebde/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487650,487663] [2022-11-25 23:19:35,626 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:19:35,630 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:19:35,631 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:19:35,632 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:19:35,636 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:19:35,640 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:19:35,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:19:36,099 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:19:36,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:36 WrapperNode [2022-11-25 23:19:36,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:19:36,101 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:19:36,101 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:19:36,101 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:19:36,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:36" (1/1) ... [2022-11-25 23:19:36,303 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:36" (1/1) ... [2022-11-25 23:19:36,799 INFO L138 Inliner]: procedures = 676, calls = 4258, calls flagged for inlining = 325, calls inlined = 302, statements flattened = 10246 [2022-11-25 23:19:36,799 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:19:36,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:19:36,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:19:36,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:19:36,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:36" (1/1) ... [2022-11-25 23:19:36,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:36" (1/1) ... [2022-11-25 23:19:36,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:36" (1/1) ... [2022-11-25 23:19:36,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:36" (1/1) ... [2022-11-25 23:19:37,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:36" (1/1) ... [2022-11-25 23:19:37,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:36" (1/1) ... [2022-11-25 23:19:37,393 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:36" (1/1) ... [2022-11-25 23:19:37,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:36" (1/1) ... [2022-11-25 23:19:37,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:19:37,522 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:19:37,522 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:19:37,522 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:19:37,523 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:36" (1/1) ... [2022-11-25 23:19:37,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:19:37,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e4ee1-7929-4665-b37a-74faa6c0ebde/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:19:37,568 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e4ee1-7929-4665-b37a-74faa6c0ebde/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:19:37,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e4ee1-7929-4665-b37a-74faa6c0ebde/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:19:37,628 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-25 23:19:37,628 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-25 23:19:37,628 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_read [2022-11-25 23:19:37,630 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_read [2022-11-25 23:19:37,630 INFO L130 BoogieDeclarations]: Found specification of procedure cas_pcs_link_check [2022-11-25 23:19:37,631 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_pcs_link_check [2022-11-25 23:19:37,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_121 [2022-11-25 23:19:37,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_121 [2022-11-25 23:19:37,631 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-25 23:19:37,631 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-25 23:19:37,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-25 23:19:37,632 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-25 23:19:37,633 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-25 23:19:37,633 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-25 23:19:37,633 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-25 23:19:37,633 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-25 23:19:37,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 23:19:37,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 23:19:37,634 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mii_link_check [2022-11-25 23:19:37,634 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mii_link_check [2022-11-25 23:19:37,634 INFO L130 BoogieDeclarations]: Found specification of procedure cas_calc_tabort [2022-11-25 23:19:37,634 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_calc_tabort [2022-11-25 23:19:37,635 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-11-25 23:19:37,635 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-11-25 23:19:37,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_3 [2022-11-25 23:19:37,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_3 [2022-11-25 23:19:37,635 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2022-11-25 23:19:37,636 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2022-11-25 23:19:37,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-25 23:19:37,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-25 23:19:37,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_147 [2022-11-25 23:19:37,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_147 [2022-11-25 23:19:37,637 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-25 23:19:37,637 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-25 23:19:37,637 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-25 23:19:37,637 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-25 23:19:37,637 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-25 23:19:37,638 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-25 23:19:37,638 INFO L130 BoogieDeclarations]: Found specification of procedure cas_lock_tx [2022-11-25 23:19:37,638 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_lock_tx [2022-11-25 23:19:37,638 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-25 23:19:37,638 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-25 23:19:37,638 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-25 23:19:37,639 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-25 23:19:37,639 INFO L130 BoogieDeclarations]: Found specification of procedure cas_disable_irq [2022-11-25 23:19:37,639 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_disable_irq [2022-11-25 23:19:37,639 INFO L130 BoogieDeclarations]: Found specification of procedure cas_free_rxds [2022-11-25 23:19:37,639 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_free_rxds [2022-11-25 23:19:37,640 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_page [2022-11-25 23:19:37,640 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_page [2022-11-25 23:19:37,640 INFO L130 BoogieDeclarations]: Found specification of procedure cas_open [2022-11-25 23:19:37,640 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_open [2022-11-25 23:19:37,640 INFO L130 BoogieDeclarations]: Found specification of procedure cas_interrupt [2022-11-25 23:19:37,641 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_interrupt [2022-11-25 23:19:37,641 INFO L130 BoogieDeclarations]: Found specification of procedure cas_tx_tiny_free [2022-11-25 23:19:37,641 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_tx_tiny_free [2022-11-25 23:19:37,641 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2022-11-25 23:19:37,641 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2022-11-25 23:19:37,642 INFO L130 BoogieDeclarations]: Found specification of procedure tx_tiny_map [2022-11-25 23:19:37,642 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_tiny_map [2022-11-25 23:19:37,642 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_init [2022-11-25 23:19:37,643 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_init [2022-11-25 23:19:37,643 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-11-25 23:19:37,643 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-11-25 23:19:37,643 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2022-11-25 23:19:37,643 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2022-11-25 23:19:37,644 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-25 23:19:37,644 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-25 23:19:37,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-25 23:19:37,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-25 23:19:37,644 INFO L130 BoogieDeclarations]: Found specification of procedure cas_enable_irq [2022-11-25 23:19:37,645 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_enable_irq [2022-11-25 23:19:37,645 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-25 23:19:37,645 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-25 23:19:37,645 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-25 23:19:37,645 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-25 23:19:37,646 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_dequeue [2022-11-25 23:19:37,646 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_dequeue [2022-11-25 23:19:37,646 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-25 23:19:37,646 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-25 23:19:37,646 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-25 23:19:37,647 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-25 23:19:37,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-25 23:19:37,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-25 23:19:37,647 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-25 23:19:37,647 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-25 23:19:37,648 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-25 23:19:37,648 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-25 23:19:37,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:19:37,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_108 [2022-11-25 23:19:37,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_108 [2022-11-25 23:19:37,649 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-11-25 23:19:37,649 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-11-25 23:19:37,649 INFO L130 BoogieDeclarations]: Found specification of procedure cas_set_multicast [2022-11-25 23:19:37,649 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_set_multicast [2022-11-25 23:19:37,649 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-25 23:19:37,649 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-25 23:19:37,650 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-25 23:19:37,650 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-25 23:19:37,650 INFO L130 BoogieDeclarations]: Found specification of procedure cas_spare_free [2022-11-25 23:19:37,650 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_spare_free [2022-11-25 23:19:37,650 INFO L130 BoogieDeclarations]: Found specification of procedure cas_tx_timeout [2022-11-25 23:19:37,651 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_tx_timeout [2022-11-25 23:19:37,651 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-25 23:19:37,651 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-25 23:19:37,651 INFO L130 BoogieDeclarations]: Found specification of procedure cas_read_pcs_link_mode [2022-11-25 23:19:37,651 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_read_pcs_link_mode [2022-11-25 23:19:37,652 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-25 23:19:37,652 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-25 23:19:37,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 23:19:37,652 INFO L130 BoogieDeclarations]: Found specification of procedure cas_close [2022-11-25 23:19:37,652 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_close [2022-11-25 23:19:37,653 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_swap [2022-11-25 23:19:37,653 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_swap [2022-11-25 23:19:37,653 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-25 23:19:37,653 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-25 23:19:37,654 INFO L130 BoogieDeclarations]: Found specification of procedure cas_netpoll [2022-11-25 23:19:37,654 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_netpoll [2022-11-25 23:19:37,654 INFO L130 BoogieDeclarations]: Found specification of procedure cas_hard_reset [2022-11-25 23:19:37,654 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_hard_reset [2022-11-25 23:19:37,654 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-25 23:19:37,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-25 23:19:37,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 23:19:37,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-25 23:19:37,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-25 23:19:37,655 INFO L130 BoogieDeclarations]: Found specification of procedure cas_rxc_init [2022-11-25 23:19:37,656 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_rxc_init [2022-11-25 23:19:37,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:19:37,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-25 23:19:37,656 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-25 23:19:37,656 INFO L130 BoogieDeclarations]: Found specification of procedure cas_clear_mac_err [2022-11-25 23:19:37,657 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_clear_mac_err [2022-11-25 23:19:37,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-25 23:19:37,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-25 23:19:37,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-25 23:19:37,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-25 23:19:37,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-25 23:19:37,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-25 23:19:37,658 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-25 23:19:37,658 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-25 23:19:37,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_3_2 [2022-11-25 23:19:37,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_3_2 [2022-11-25 23:19:37,659 INFO L130 BoogieDeclarations]: Found specification of procedure cas_remove_one [2022-11-25 23:19:37,659 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_remove_one [2022-11-25 23:19:37,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_NOT_ARG_SIGN [2022-11-25 23:19:37,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_NOT_ARG_SIGN [2022-11-25 23:19:37,660 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-25 23:19:37,660 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-25 23:19:37,660 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-25 23:19:37,660 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-25 23:19:37,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-25 23:19:37,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-25 23:19:37,661 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-11-25 23:19:37,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-11-25 23:19:37,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 23:19:37,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-25 23:19:37,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-25 23:19:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:19:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_init [2022-11-25 23:19:37,662 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_init [2022-11-25 23:19:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-25 23:19:37,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-25 23:19:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-25 23:19:37,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-25 23:19:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 23:19:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-25 23:19:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 23:19:37,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 23:19:37,666 INFO L130 BoogieDeclarations]: Found specification of procedure cas_set_link_modes [2022-11-25 23:19:37,666 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_set_link_modes [2022-11-25 23:19:37,667 INFO L130 BoogieDeclarations]: Found specification of procedure cas_link_timer [2022-11-25 23:19:37,667 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_link_timer [2022-11-25 23:19:37,667 INFO L130 BoogieDeclarations]: Found specification of procedure cas_read_mii_link_mode [2022-11-25 23:19:37,667 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_read_mii_link_mode [2022-11-25 23:19:37,667 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2022-11-25 23:19:37,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2022-11-25 23:19:37,668 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-25 23:19:37,668 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-25 23:19:37,668 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-25 23:19:37,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-25 23:19:37,669 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-25 23:19:37,669 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-25 23:19:37,669 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2022-11-25 23:19:37,669 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2022-11-25 23:19:37,669 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-25 23:19:37,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-25 23:19:37,670 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-25 23:19:37,670 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-25 23:19:37,670 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-25 23:19:37,670 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-25 23:19:37,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-25 23:19:37,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-25 23:19:37,671 INFO L130 BoogieDeclarations]: Found specification of procedure csum_unfold [2022-11-25 23:19:37,671 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_unfold [2022-11-25 23:19:37,671 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-11-25 23:19:37,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-11-25 23:19:37,672 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-25 23:19:37,672 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-25 23:19:37,672 INFO L130 BoogieDeclarations]: Found specification of procedure cas_entropy_gather [2022-11-25 23:19:37,672 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_entropy_gather [2022-11-25 23:19:37,672 INFO L130 BoogieDeclarations]: Found specification of procedure cas_resume [2022-11-25 23:19:37,673 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_resume [2022-11-25 23:19:37,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:19:37,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:19:37,673 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_alloc [2022-11-25 23:19:37,673 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_alloc [2022-11-25 23:19:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 23:19:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 23:19:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 23:19:37,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 23:19:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-25 23:19:37,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-25 23:19:37,675 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-25 23:19:37,675 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-25 23:19:37,675 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mif_poll [2022-11-25 23:19:37,675 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mif_poll [2022-11-25 23:19:37,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-25 23:19:37,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-25 23:19:37,676 INFO L130 BoogieDeclarations]: Found specification of procedure cas_unlock_tx [2022-11-25 23:19:37,676 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_unlock_tx [2022-11-25 23:19:37,676 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-25 23:19:37,676 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-25 23:19:37,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_133 [2022-11-25 23:19:37,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_133 [2022-11-25 23:19:37,677 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice [2022-11-25 23:19:37,677 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice [2022-11-25 23:19:37,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_135 [2022-11-25 23:19:37,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_135 [2022-11-25 23:19:37,678 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-25 23:19:37,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-25 23:19:37,678 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2022-11-25 23:19:37,678 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2022-11-25 23:19:37,679 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-25 23:19:37,679 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-25 23:19:37,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 23:19:37,679 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 23:19:37,679 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-25 23:19:37,679 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-25 23:19:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-25 23:19:37,680 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-25 23:19:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure tx_tiny_buf [2022-11-25 23:19:37,680 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_tiny_buf [2022-11-25 23:19:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mac_reset [2022-11-25 23:19:37,681 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mac_reset [2022-11-25 23:19:37,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_cas [2022-11-25 23:19:37,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_cas [2022-11-25 23:19:37,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:19:37,681 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-25 23:19:37,682 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-25 23:19:37,682 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_frag_set_page [2022-11-25 23:19:37,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_frag_set_page [2022-11-25 23:19:37,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 23:19:37,682 INFO L130 BoogieDeclarations]: Found specification of procedure cas_get_regs_len [2022-11-25 23:19:37,683 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_get_regs_len [2022-11-25 23:19:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure cas_reset [2022-11-25 23:19:37,683 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_reset [2022-11-25 23:19:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_8_2 [2022-11-25 23:19:37,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_8_2 [2022-11-25 23:19:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_NOT_ARG_SIGN [2022-11-25 23:19:37,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_NOT_ARG_SIGN [2022-11-25 23:19:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-11-25 23:19:37,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-11-25 23:19:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_page [2022-11-25 23:19:37,684 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_page [2022-11-25 23:19:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 23:19:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-25 23:19:37,685 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-25 23:19:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure cas_nway_reset [2022-11-25 23:19:37,685 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_nway_reset [2022-11-25 23:19:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-25 23:19:37,686 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-25 23:19:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-25 23:19:37,686 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-25 23:19:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-25 23:19:37,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-25 23:19:37,687 INFO L130 BoogieDeclarations]: Found specification of procedure cas_setup_multicast [2022-11-25 23:19:37,687 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_setup_multicast [2022-11-25 23:19:37,687 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_powerdown [2022-11-25 23:19:37,687 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_powerdown [2022-11-25 23:19:37,687 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_rxds_ringN [2022-11-25 23:19:37,688 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_rxds_ringN [2022-11-25 23:19:37,688 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-25 23:19:37,688 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-25 23:19:37,688 INFO L130 BoogieDeclarations]: Found specification of procedure cas_vpd_match [2022-11-25 23:19:37,688 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_vpd_match [2022-11-25 23:19:37,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_83 [2022-11-25 23:19:37,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_83 [2022-11-25 23:19:37,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_81 [2022-11-25 23:19:37,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_81 [2022-11-25 23:19:37,689 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-25 23:19:37,690 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-25 23:19:37,690 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2022-11-25 23:19:37,690 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2022-11-25 23:19:37,690 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-25 23:19:37,690 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-25 23:19:37,691 INFO L130 BoogieDeclarations]: Found specification of procedure page_count [2022-11-25 23:19:37,691 INFO L138 BoogieDeclarations]: Found implementation of procedure page_count [2022-11-25 23:19:37,691 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-25 23:19:37,691 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-25 23:19:37,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_77 [2022-11-25 23:19:37,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_77 [2022-11-25 23:19:37,692 INFO L130 BoogieDeclarations]: Found specification of procedure cas_shutdown [2022-11-25 23:19:37,692 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_shutdown [2022-11-25 23:19:37,692 INFO L130 BoogieDeclarations]: Found specification of procedure cas_begin_auto_negotiation [2022-11-25 23:19:37,692 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_begin_auto_negotiation [2022-11-25 23:19:37,693 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-25 23:19:37,693 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-25 23:19:37,693 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-25 23:19:37,693 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-25 23:19:37,693 INFO L130 BoogieDeclarations]: Found specification of procedure cas_write_txd [2022-11-25 23:19:37,693 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_write_txd [2022-11-25 23:19:37,694 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-25 23:19:37,694 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-25 23:19:37,694 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_frag_ref [2022-11-25 23:19:37,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_frag_ref [2022-11-25 23:19:37,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:19:37,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 23:19:37,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 23:19:37,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_82 [2022-11-25 23:19:37,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_82 [2022-11-25 23:19:37,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_84 [2022-11-25 23:19:37,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_84 [2022-11-25 23:19:37,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_79 [2022-11-25 23:19:37,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_79 [2022-11-25 23:19:37,696 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-25 23:19:37,696 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-25 23:19:37,696 INFO L130 BoogieDeclarations]: Found specification of procedure cas_init_hw [2022-11-25 23:19:37,697 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_init_hw [2022-11-25 23:19:37,697 INFO L130 BoogieDeclarations]: Found specification of procedure cas_clean_rings [2022-11-25 23:19:37,697 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_clean_rings [2022-11-25 23:19:37,697 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_free [2022-11-25 23:19:37,697 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_free [2022-11-25 23:19:37,697 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-25 23:19:37,698 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-25 23:19:37,698 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_write [2022-11-25 23:19:37,698 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_write [2022-11-25 23:19:37,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-25 23:19:37,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-25 23:19:37,699 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-25 23:19:37,699 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-25 23:19:37,699 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-25 23:19:37,699 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-25 23:19:37,699 INFO L130 BoogieDeclarations]: Found specification of procedure cas_spare_recover [2022-11-25 23:19:37,700 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_spare_recover [2022-11-25 23:19:37,700 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2022-11-25 23:19:37,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2022-11-25 23:19:37,700 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-25 23:19:37,700 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-25 23:19:37,700 INFO L130 BoogieDeclarations]: Found specification of procedure cas_get_stats [2022-11-25 23:19:37,701 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_get_stats [2022-11-25 23:19:37,701 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-25 23:19:37,701 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-25 23:19:37,701 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2022-11-25 23:19:37,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2022-11-25 23:19:37,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:19:37,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-25 23:19:37,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-25 23:19:37,702 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-11-25 23:19:37,702 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-11-25 23:19:37,703 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-25 23:19:37,703 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-25 23:19:37,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_107 [2022-11-25 23:19:37,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_107 [2022-11-25 23:19:39,215 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:19:39,220 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:19:39,848 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 23:23:46,639 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:23:53,498 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:23:53,498 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-25 23:23:53,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:23:53 BoogieIcfgContainer [2022-11-25 23:23:53,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:23:53,510 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:23:53,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:23:53,513 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:23:53,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:19:28" (1/3) ... [2022-11-25 23:23:53,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b81428d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:23:53, skipping insertion in model container [2022-11-25 23:23:53,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:36" (2/3) ... [2022-11-25 23:23:53,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b81428d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:23:53, skipping insertion in model container [2022-11-25 23:23:53,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:23:53" (3/3) ... [2022-11-25 23:23:53,517 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2022-11-25 23:23:53,537 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:23:53,537 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-25 23:23:53,664 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:23:53,670 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;@668c243, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:23:53,671 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-25 23:23:53,684 INFO L276 IsEmpty]: Start isEmpty. Operand has 2825 states, 1584 states have (on average 1.2613636363636365) internal successors, (1998), 1665 states have internal predecessors, (1998), 1066 states have call successors, (1066), 173 states have call predecessors, (1066), 172 states have return successors, (1062), 1048 states have call predecessors, (1062), 1062 states have call successors, (1062) [2022-11-25 23:23:53,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-25 23:23:53,693 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:53,693 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 23:23:53,694 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:23:53,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:53,699 INFO L85 PathProgramCache]: Analyzing trace with hash -506179761, now seen corresponding path program 1 times [2022-11-25 23:23:53,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:53,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820276068] [2022-11-25 23:23:53,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:53,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:54,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:56,166 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 23:23:56,166 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:56,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820276068] [2022-11-25 23:23:56,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820276068] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:56,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:56,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:23:56,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269618654] [2022-11-25 23:23:56,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:56,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:23:56,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:56,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:23:56,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:23:56,233 INFO L87 Difference]: Start difference. First operand has 2825 states, 1584 states have (on average 1.2613636363636365) internal successors, (1998), 1665 states have internal predecessors, (1998), 1066 states have call successors, (1066), 173 states have call predecessors, (1066), 172 states have return successors, (1062), 1048 states have call predecessors, (1062), 1062 states have call successors, (1062) 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 23:23:58,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:10,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:10,460 INFO L93 Difference]: Finished difference Result 7966 states and 12094 transitions. [2022-11-25 23:24:10,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:24:10,463 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 23:24:10,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:10,516 INFO L225 Difference]: With dead ends: 7966 [2022-11-25 23:24:10,516 INFO L226 Difference]: Without dead ends: 5144 [2022-11-25 23:24:10,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:24:10,549 INFO L413 NwaCegarLoop]: 4700 mSDtfsCounter, 3948 mSDsluCounter, 12636 mSDsCounter, 0 mSdLazyCounter, 1610 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3967 SdHoareTripleChecker+Valid, 17336 SdHoareTripleChecker+Invalid, 1614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1610 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:10,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3967 Valid, 17336 Invalid, 1614 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1610 Invalid, 1 Unknown, 0 Unchecked, 13.5s Time] [2022-11-25 23:24:10,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5144 states. [2022-11-25 23:24:11,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5144 to 5136. [2022-11-25 23:24:11,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5136 states, 2870 states have (on average 1.2571428571428571) internal successors, (3608), 3025 states have internal predecessors, (3608), 1936 states have call successors, (1936), 336 states have call predecessors, (1936), 327 states have return successors, (2014), 1881 states have call predecessors, (2014), 1930 states have call successors, (2014) [2022-11-25 23:24:11,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5136 states to 5136 states and 7558 transitions. [2022-11-25 23:24:11,136 INFO L78 Accepts]: Start accepts. Automaton has 5136 states and 7558 transitions. Word has length 35 [2022-11-25 23:24:11,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:11,137 INFO L495 AbstractCegarLoop]: Abstraction has 5136 states and 7558 transitions. [2022-11-25 23:24:11,137 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 23:24:11,137 INFO L276 IsEmpty]: Start isEmpty. Operand 5136 states and 7558 transitions. [2022-11-25 23:24:11,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-25 23:24:11,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:11,142 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, 1] [2022-11-25 23:24:11,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:24:11,142 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:24:11,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:11,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1876656955, now seen corresponding path program 1 times [2022-11-25 23:24:11,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:11,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597495652] [2022-11-25 23:24:11,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:11,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:11,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:13,173 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 23:24:13,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:13,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597495652] [2022-11-25 23:24:13,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597495652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:13,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:13,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:24:13,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943027005] [2022-11-25 23:24:13,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:13,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:24:13,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:13,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:24:13,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:24:13,177 INFO L87 Difference]: Start difference. First operand 5136 states and 7558 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 23:24:15,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:24,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:24,080 INFO L93 Difference]: Finished difference Result 5146 states and 7567 transitions. [2022-11-25 23:24:24,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:24:24,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 41 [2022-11-25 23:24:24,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:24,123 INFO L225 Difference]: With dead ends: 5146 [2022-11-25 23:24:24,123 INFO L226 Difference]: Without dead ends: 5144 [2022-11-25 23:24:24,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:24:24,130 INFO L413 NwaCegarLoop]: 3709 mSDtfsCounter, 4073 mSDsluCounter, 7392 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4090 SdHoareTripleChecker+Valid, 11101 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:24,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4090 Valid, 11101 Invalid, 1204 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1202 Invalid, 1 Unknown, 0 Unchecked, 10.3s Time] [2022-11-25 23:24:24,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5144 states. [2022-11-25 23:24:24,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5144 to 5144. [2022-11-25 23:24:24,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5144 states, 2876 states have (on average 1.256606397774687) internal successors, (3614), 3031 states have internal predecessors, (3614), 1936 states have call successors, (1936), 338 states have call predecessors, (1936), 329 states have return successors, (2014), 1881 states have call predecessors, (2014), 1930 states have call successors, (2014) [2022-11-25 23:24:24,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5144 states to 5144 states and 7564 transitions. [2022-11-25 23:24:24,546 INFO L78 Accepts]: Start accepts. Automaton has 5144 states and 7564 transitions. Word has length 41 [2022-11-25 23:24:24,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:24,547 INFO L495 AbstractCegarLoop]: Abstraction has 5144 states and 7564 transitions. [2022-11-25 23:24:24,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 23:24:24,547 INFO L276 IsEmpty]: Start isEmpty. Operand 5144 states and 7564 transitions. [2022-11-25 23:24:24,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-25 23:24:24,549 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:24,549 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, 1] [2022-11-25 23:24:24,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:24:24,549 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:24:24,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:24,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1839038960, now seen corresponding path program 1 times [2022-11-25 23:24:24,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:24,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686801207] [2022-11-25 23:24:24,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:24,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:24,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:26,224 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 23:24:26,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:26,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686801207] [2022-11-25 23:24:26,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686801207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:26,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:26,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:24:26,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454287298] [2022-11-25 23:24:26,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:26,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:24:26,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:26,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:24:26,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:24:26,227 INFO L87 Difference]: Start difference. First operand 5144 states and 7564 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 23:24:28,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:37,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:37,100 INFO L93 Difference]: Finished difference Result 5154 states and 7573 transitions. [2022-11-25 23:24:37,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:24:37,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 46 [2022-11-25 23:24:37,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:37,138 INFO L225 Difference]: With dead ends: 5154 [2022-11-25 23:24:37,138 INFO L226 Difference]: Without dead ends: 5152 [2022-11-25 23:24:37,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:24:37,144 INFO L413 NwaCegarLoop]: 3709 mSDtfsCounter, 4073 mSDsluCounter, 7392 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4089 SdHoareTripleChecker+Valid, 11101 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:37,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4089 Valid, 11101 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1202 Invalid, 1 Unknown, 0 Unchecked, 10.3s Time] [2022-11-25 23:24:37,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5152 states. [2022-11-25 23:24:37,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5152 to 5152. [2022-11-25 23:24:37,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5152 states, 2882 states have (on average 1.2560721721027064) internal successors, (3620), 3037 states have internal predecessors, (3620), 1936 states have call successors, (1936), 340 states have call predecessors, (1936), 331 states have return successors, (2014), 1881 states have call predecessors, (2014), 1930 states have call successors, (2014) [2022-11-25 23:24:37,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5152 states to 5152 states and 7570 transitions. [2022-11-25 23:24:37,552 INFO L78 Accepts]: Start accepts. Automaton has 5152 states and 7570 transitions. Word has length 46 [2022-11-25 23:24:37,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:37,552 INFO L495 AbstractCegarLoop]: Abstraction has 5152 states and 7570 transitions. [2022-11-25 23:24:37,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 23:24:37,554 INFO L276 IsEmpty]: Start isEmpty. Operand 5152 states and 7570 transitions. [2022-11-25 23:24:37,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-25 23:24:37,559 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:37,559 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 23:24:37,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:24:37,560 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:24:37,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:37,561 INFO L85 PathProgramCache]: Analyzing trace with hash -806884506, now seen corresponding path program 1 times [2022-11-25 23:24:37,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:37,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366460938] [2022-11-25 23:24:37,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:37,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:37,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:38,990 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 23:24:38,990 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:38,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366460938] [2022-11-25 23:24:38,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366460938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:38,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:38,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:24:38,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285061091] [2022-11-25 23:24:38,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:38,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:24:38,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:38,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:24:38,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:24:38,992 INFO L87 Difference]: Start difference. First operand 5152 states and 7570 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 23:24:41,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:49,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:49,452 INFO L93 Difference]: Finished difference Result 5162 states and 7579 transitions. [2022-11-25 23:24:49,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:24:49,453 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 23:24:49,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:49,488 INFO L225 Difference]: With dead ends: 5162 [2022-11-25 23:24:49,488 INFO L226 Difference]: Without dead ends: 5160 [2022-11-25 23:24:49,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:24:49,492 INFO L413 NwaCegarLoop]: 3709 mSDtfsCounter, 4074 mSDsluCounter, 7392 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4089 SdHoareTripleChecker+Valid, 11101 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:49,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4089 Valid, 11101 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1202 Invalid, 1 Unknown, 0 Unchecked, 9.9s Time] [2022-11-25 23:24:49,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5160 states. [2022-11-25 23:24:49,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5160 to 5160. [2022-11-25 23:24:49,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5160 states, 2888 states have (on average 1.255540166204986) internal successors, (3626), 3043 states have internal predecessors, (3626), 1936 states have call successors, (1936), 342 states have call predecessors, (1936), 333 states have return successors, (2014), 1881 states have call predecessors, (2014), 1930 states have call successors, (2014) [2022-11-25 23:24:49,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5160 states to 5160 states and 7576 transitions. [2022-11-25 23:24:49,880 INFO L78 Accepts]: Start accepts. Automaton has 5160 states and 7576 transitions. Word has length 50 [2022-11-25 23:24:49,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:49,881 INFO L495 AbstractCegarLoop]: Abstraction has 5160 states and 7576 transitions. [2022-11-25 23:24:49,881 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 23:24:49,881 INFO L276 IsEmpty]: Start isEmpty. Operand 5160 states and 7576 transitions. [2022-11-25 23:24:49,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-25 23:24:49,887 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:49,887 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 23:24:49,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:24:49,887 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:24:49,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:49,888 INFO L85 PathProgramCache]: Analyzing trace with hash 2089433999, now seen corresponding path program 1 times [2022-11-25 23:24:49,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:49,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582031464] [2022-11-25 23:24:49,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:49,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:50,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:51,430 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 23:24:51,430 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:51,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582031464] [2022-11-25 23:24:51,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582031464] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:51,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:51,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:24:51,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365634763] [2022-11-25 23:24:51,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:51,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:24:51,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:51,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:24:51,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:24:51,432 INFO L87 Difference]: Start difference. First operand 5160 states and 7576 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 23:24:53,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:25:02,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:02,531 INFO L93 Difference]: Finished difference Result 5170 states and 7585 transitions. [2022-11-25 23:25:02,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:25:02,532 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 23:25:02,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:02,567 INFO L225 Difference]: With dead ends: 5170 [2022-11-25 23:25:02,568 INFO L226 Difference]: Without dead ends: 5168 [2022-11-25 23:25:02,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:25:02,573 INFO L413 NwaCegarLoop]: 3709 mSDtfsCounter, 4074 mSDsluCounter, 7392 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4088 SdHoareTripleChecker+Valid, 11101 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:02,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4088 Valid, 11101 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1202 Invalid, 1 Unknown, 0 Unchecked, 10.7s Time] [2022-11-25 23:25:02,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5168 states. [2022-11-25 23:25:03,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5168 to 5168. [2022-11-25 23:25:03,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5168 states, 2894 states have (on average 1.2550103662750518) internal successors, (3632), 3049 states have internal predecessors, (3632), 1936 states have call successors, (1936), 344 states have call predecessors, (1936), 335 states have return successors, (2014), 1881 states have call predecessors, (2014), 1930 states have call successors, (2014) [2022-11-25 23:25:03,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5168 states to 5168 states and 7582 transitions. [2022-11-25 23:25:03,116 INFO L78 Accepts]: Start accepts. Automaton has 5168 states and 7582 transitions. Word has length 55 [2022-11-25 23:25:03,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:03,117 INFO L495 AbstractCegarLoop]: Abstraction has 5168 states and 7582 transitions. [2022-11-25 23:25:03,117 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 23:25:03,117 INFO L276 IsEmpty]: Start isEmpty. Operand 5168 states and 7582 transitions. [2022-11-25 23:25:03,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-25 23:25:03,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:03,120 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, 1] [2022-11-25 23:25:03,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 23:25:03,121 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:25:03,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:03,121 INFO L85 PathProgramCache]: Analyzing trace with hash -2017017339, now seen corresponding path program 1 times [2022-11-25 23:25:03,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:03,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907831847] [2022-11-25 23:25:03,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:03,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:03,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:04,509 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 23:25:04,509 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:04,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907831847] [2022-11-25 23:25:04,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907831847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:04,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:04,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:25:04,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457294277] [2022-11-25 23:25:04,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:04,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:25:04,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:04,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:25:04,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:25:04,512 INFO L87 Difference]: Start difference. First operand 5168 states and 7582 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 23:25:06,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:25:14,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:14,792 INFO L93 Difference]: Finished difference Result 5178 states and 7591 transitions. [2022-11-25 23:25:14,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:25:14,792 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 61 [2022-11-25 23:25:14,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:14,823 INFO L225 Difference]: With dead ends: 5178 [2022-11-25 23:25:14,823 INFO L226 Difference]: Without dead ends: 5176 [2022-11-25 23:25:14,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:25:14,829 INFO L413 NwaCegarLoop]: 3709 mSDtfsCounter, 4073 mSDsluCounter, 7392 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4086 SdHoareTripleChecker+Valid, 11101 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:14,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4086 Valid, 11101 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1202 Invalid, 1 Unknown, 0 Unchecked, 9.8s Time] [2022-11-25 23:25:14,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5176 states. [2022-11-25 23:25:15,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5176 to 5176. [2022-11-25 23:25:15,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5176 states, 2900 states have (on average 1.2544827586206897) internal successors, (3638), 3055 states have internal predecessors, (3638), 1936 states have call successors, (1936), 346 states have call predecessors, (1936), 337 states have return successors, (2014), 1881 states have call predecessors, (2014), 1930 states have call successors, (2014) [2022-11-25 23:25:15,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 7588 transitions. [2022-11-25 23:25:15,251 INFO L78 Accepts]: Start accepts. Automaton has 5176 states and 7588 transitions. Word has length 61 [2022-11-25 23:25:15,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:15,252 INFO L495 AbstractCegarLoop]: Abstraction has 5176 states and 7588 transitions. [2022-11-25 23:25:15,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 23:25:15,252 INFO L276 IsEmpty]: Start isEmpty. Operand 5176 states and 7588 transitions. [2022-11-25 23:25:15,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-25 23:25:15,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:15,253 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:15,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 23:25:15,253 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:25:15,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:15,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1007542224, now seen corresponding path program 1 times [2022-11-25 23:25:15,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:15,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962310149] [2022-11-25 23:25:15,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:15,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:16,734 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-11-25 23:25:16,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:16,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962310149] [2022-11-25 23:25:16,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962310149] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:16,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:16,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:25:16,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622812443] [2022-11-25 23:25:16,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:16,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:25:16,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:16,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:25:16,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:25:16,736 INFO L87 Difference]: Start difference. First operand 5176 states and 7588 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 23:25:18,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:25:27,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:27,637 INFO L93 Difference]: Finished difference Result 5186 states and 7597 transitions. [2022-11-25 23:25:27,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:25:27,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 66 [2022-11-25 23:25:27,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:27,670 INFO L225 Difference]: With dead ends: 5186 [2022-11-25 23:25:27,671 INFO L226 Difference]: Without dead ends: 5184 [2022-11-25 23:25:27,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:25:27,677 INFO L413 NwaCegarLoop]: 3709 mSDtfsCounter, 4073 mSDsluCounter, 7392 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4085 SdHoareTripleChecker+Valid, 11101 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:27,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4085 Valid, 11101 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1202 Invalid, 1 Unknown, 0 Unchecked, 10.4s Time] [2022-11-25 23:25:27,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5184 states. [2022-11-25 23:25:28,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5184 to 5184. [2022-11-25 23:25:28,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5184 states, 2906 states have (on average 1.2539573296627666) internal successors, (3644), 3061 states have internal predecessors, (3644), 1936 states have call successors, (1936), 348 states have call predecessors, (1936), 339 states have return successors, (2014), 1881 states have call predecessors, (2014), 1930 states have call successors, (2014) [2022-11-25 23:25:28,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5184 states to 5184 states and 7594 transitions. [2022-11-25 23:25:28,291 INFO L78 Accepts]: Start accepts. Automaton has 5184 states and 7594 transitions. Word has length 66 [2022-11-25 23:25:28,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:28,291 INFO L495 AbstractCegarLoop]: Abstraction has 5184 states and 7594 transitions. [2022-11-25 23:25:28,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 23:25:28,292 INFO L276 IsEmpty]: Start isEmpty. Operand 5184 states and 7594 transitions. [2022-11-25 23:25:28,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-25 23:25:28,294 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:28,294 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 23:25:28,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 23:25:28,295 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:25:28,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:28,295 INFO L85 PathProgramCache]: Analyzing trace with hash -733940186, now seen corresponding path program 1 times [2022-11-25 23:25:28,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:28,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002791124] [2022-11-25 23:25:28,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:28,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:29,621 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 23:25:29,622 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:29,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002791124] [2022-11-25 23:25:29,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002791124] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:29,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:29,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:25:29,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134477490] [2022-11-25 23:25:29,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:29,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:25:29,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:29,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:25:29,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:25:29,624 INFO L87 Difference]: Start difference. First operand 5184 states and 7594 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 23:25:31,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:25:43,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:43,572 INFO L93 Difference]: Finished difference Result 7329 states and 10612 transitions. [2022-11-25 23:25:43,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:25:43,572 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 23:25:43,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:43,613 INFO L225 Difference]: With dead ends: 7329 [2022-11-25 23:25:43,613 INFO L226 Difference]: Without dead ends: 7327 [2022-11-25 23:25:43,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:25:43,621 INFO L413 NwaCegarLoop]: 5010 mSDtfsCounter, 3048 mSDsluCounter, 12327 mSDsCounter, 0 mSdLazyCounter, 1753 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3059 SdHoareTripleChecker+Valid, 17337 SdHoareTripleChecker+Invalid, 1756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1753 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:43,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3059 Valid, 17337 Invalid, 1756 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1753 Invalid, 1 Unknown, 0 Unchecked, 13.3s Time] [2022-11-25 23:25:43,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7327 states. [2022-11-25 23:25:44,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7327 to 7319. [2022-11-25 23:25:44,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7319 states, 4107 states have (on average 1.2434867299732164) internal successors, (5107), 4299 states have internal predecessors, (5107), 2677 states have call successors, (2677), 549 states have call predecessors, (2677), 532 states have return successors, (2819), 2608 states have call predecessors, (2819), 2671 states have call successors, (2819) [2022-11-25 23:25:44,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7319 states to 7319 states and 10603 transitions. [2022-11-25 23:25:44,224 INFO L78 Accepts]: Start accepts. Automaton has 7319 states and 10603 transitions. Word has length 70 [2022-11-25 23:25:44,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:44,225 INFO L495 AbstractCegarLoop]: Abstraction has 7319 states and 10603 transitions. [2022-11-25 23:25:44,225 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 23:25:44,225 INFO L276 IsEmpty]: Start isEmpty. Operand 7319 states and 10603 transitions. [2022-11-25 23:25:44,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-25 23:25:44,226 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:44,227 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, 1] [2022-11-25 23:25:44,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 23:25:44,227 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:25:44,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:44,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1167013040, now seen corresponding path program 1 times [2022-11-25 23:25:44,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:44,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124612008] [2022-11-25 23:25:44,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:44,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:44,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:45,936 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 23:25:45,936 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:45,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124612008] [2022-11-25 23:25:45,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124612008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:45,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:45,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:25:45,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643729934] [2022-11-25 23:25:45,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:45,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:25:45,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:45,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:25:45,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:25:45,938 INFO L87 Difference]: Start difference. First operand 7319 states and 10603 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 23:25:48,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:25:56,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:56,294 INFO L93 Difference]: Finished difference Result 7329 states and 10612 transitions. [2022-11-25 23:25:56,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:25:56,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 76 [2022-11-25 23:25:56,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:56,336 INFO L225 Difference]: With dead ends: 7329 [2022-11-25 23:25:56,336 INFO L226 Difference]: Without dead ends: 7327 [2022-11-25 23:25:56,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:25:56,343 INFO L413 NwaCegarLoop]: 3709 mSDtfsCounter, 4073 mSDsluCounter, 7392 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4083 SdHoareTripleChecker+Valid, 11101 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:56,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4083 Valid, 11101 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1202 Invalid, 1 Unknown, 0 Unchecked, 9.7s Time] [2022-11-25 23:25:56,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7327 states. [2022-11-25 23:25:57,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7327 to 7327. [2022-11-25 23:25:57,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7327 states, 4113 states have (on average 1.2431315341599805) internal successors, (5113), 4305 states have internal predecessors, (5113), 2677 states have call successors, (2677), 551 states have call predecessors, (2677), 534 states have return successors, (2819), 2608 states have call predecessors, (2819), 2671 states have call successors, (2819) [2022-11-25 23:25:57,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7327 states to 7327 states and 10609 transitions. [2022-11-25 23:25:57,118 INFO L78 Accepts]: Start accepts. Automaton has 7327 states and 10609 transitions. Word has length 76 [2022-11-25 23:25:57,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:57,120 INFO L495 AbstractCegarLoop]: Abstraction has 7327 states and 10609 transitions. [2022-11-25 23:25:57,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 23:25:57,120 INFO L276 IsEmpty]: Start isEmpty. Operand 7327 states and 10609 transitions. [2022-11-25 23:25:57,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-25 23:25:57,125 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:57,125 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 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] [2022-11-25 23:25:57,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 23:25:57,126 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:25:57,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:57,126 INFO L85 PathProgramCache]: Analyzing trace with hash 929804166, now seen corresponding path program 1 times [2022-11-25 23:25:57,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:57,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639690795] [2022-11-25 23:25:57,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:57,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:57,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:58,469 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-11-25 23:25:58,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:58,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639690795] [2022-11-25 23:25:58,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639690795] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:58,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:58,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:25:58,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372726072] [2022-11-25 23:25:58,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:58,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:25:58,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:58,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:25:58,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:25:58,472 INFO L87 Difference]: Start difference. First operand 7327 states and 10609 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, (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 23:26:00,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:26:09,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:09,577 INFO L93 Difference]: Finished difference Result 7337 states and 10618 transitions. [2022-11-25 23:26:09,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:26:09,578 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, (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 80 [2022-11-25 23:26:09,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:09,617 INFO L225 Difference]: With dead ends: 7337 [2022-11-25 23:26:09,617 INFO L226 Difference]: Without dead ends: 7335 [2022-11-25 23:26:09,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:26:09,624 INFO L413 NwaCegarLoop]: 3709 mSDtfsCounter, 4074 mSDsluCounter, 7392 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4083 SdHoareTripleChecker+Valid, 11101 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:09,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4083 Valid, 11101 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1202 Invalid, 1 Unknown, 0 Unchecked, 10.4s Time] [2022-11-25 23:26:09,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7335 states. [2022-11-25 23:26:10,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7335 to 7335. [2022-11-25 23:26:10,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7335 states, 4119 states have (on average 1.2427773731488225) internal successors, (5119), 4311 states have internal predecessors, (5119), 2677 states have call successors, (2677), 553 states have call predecessors, (2677), 536 states have return successors, (2819), 2608 states have call predecessors, (2819), 2671 states have call successors, (2819) [2022-11-25 23:26:10,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7335 states to 7335 states and 10615 transitions. [2022-11-25 23:26:10,362 INFO L78 Accepts]: Start accepts. Automaton has 7335 states and 10615 transitions. Word has length 80 [2022-11-25 23:26:10,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:10,362 INFO L495 AbstractCegarLoop]: Abstraction has 7335 states and 10615 transitions. [2022-11-25 23:26:10,363 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, (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 23:26:10,363 INFO L276 IsEmpty]: Start isEmpty. Operand 7335 states and 10615 transitions. [2022-11-25 23:26:10,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-25 23:26:10,364 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:10,364 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 23:26:10,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 23:26:10,365 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:26:10,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:10,366 INFO L85 PathProgramCache]: Analyzing trace with hash -66414097, now seen corresponding path program 1 times [2022-11-25 23:26:10,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:26:10,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131611971] [2022-11-25 23:26:10,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:10,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:26:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:11,692 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 23:26:11,693 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:26:11,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131611971] [2022-11-25 23:26:11,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131611971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:11,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:11,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:26:11,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663799139] [2022-11-25 23:26:11,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:11,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:26:11,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:26:11,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:26:11,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:26:11,695 INFO L87 Difference]: Start difference. First operand 7335 states and 10615 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 23:26:13,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:26:22,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:22,454 INFO L93 Difference]: Finished difference Result 7345 states and 10624 transitions. [2022-11-25 23:26:22,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:26:22,454 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 23:26:22,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:22,488 INFO L225 Difference]: With dead ends: 7345 [2022-11-25 23:26:22,489 INFO L226 Difference]: Without dead ends: 7343 [2022-11-25 23:26:22,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:26:22,494 INFO L413 NwaCegarLoop]: 3709 mSDtfsCounter, 4074 mSDsluCounter, 7392 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4082 SdHoareTripleChecker+Valid, 11101 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:22,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4082 Valid, 11101 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1202 Invalid, 1 Unknown, 0 Unchecked, 10.0s Time] [2022-11-25 23:26:22,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7343 states. [2022-11-25 23:26:23,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7343 to 7343. [2022-11-25 23:26:23,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 4125 states have (on average 1.2424242424242424) internal successors, (5125), 4317 states have internal predecessors, (5125), 2677 states have call successors, (2677), 555 states have call predecessors, (2677), 538 states have return successors, (2819), 2608 states have call predecessors, (2819), 2671 states have call successors, (2819) [2022-11-25 23:26:23,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 10621 transitions. [2022-11-25 23:26:23,207 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 10621 transitions. Word has length 85 [2022-11-25 23:26:23,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:23,207 INFO L495 AbstractCegarLoop]: Abstraction has 7343 states and 10621 transitions. [2022-11-25 23:26:23,208 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 23:26:23,208 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 10621 transitions. [2022-11-25 23:26:23,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-25 23:26:23,210 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:23,210 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 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] [2022-11-25 23:26:23,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 23:26:23,210 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:26:23,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:23,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1803018470, now seen corresponding path program 1 times [2022-11-25 23:26:23,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:26:23,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538542975] [2022-11-25 23:26:23,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:23,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:26:23,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:24,605 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-11-25 23:26:24,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:26:24,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538542975] [2022-11-25 23:26:24,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538542975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:24,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:24,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:26:24,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773992836] [2022-11-25 23:26:24,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:24,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:26:24,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:26:24,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:26:24,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:26:24,608 INFO L87 Difference]: Start difference. First operand 7343 states and 10621 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, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-25 23:26:26,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:26:35,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:35,801 INFO L93 Difference]: Finished difference Result 7353 states and 10630 transitions. [2022-11-25 23:26:35,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:26:35,802 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, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 90 [2022-11-25 23:26:35,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:35,841 INFO L225 Difference]: With dead ends: 7353 [2022-11-25 23:26:35,841 INFO L226 Difference]: Without dead ends: 7351 [2022-11-25 23:26:35,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:26:35,848 INFO L413 NwaCegarLoop]: 3709 mSDtfsCounter, 4074 mSDsluCounter, 7392 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4081 SdHoareTripleChecker+Valid, 11101 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:35,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4081 Valid, 11101 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1202 Invalid, 1 Unknown, 0 Unchecked, 10.5s Time] [2022-11-25 23:26:35,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7351 states. [2022-11-25 23:26:36,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7351 to 7351. [2022-11-25 23:26:36,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7351 states, 4131 states have (on average 1.242072137496974) internal successors, (5131), 4323 states have internal predecessors, (5131), 2677 states have call successors, (2677), 557 states have call predecessors, (2677), 540 states have return successors, (2819), 2608 states have call predecessors, (2819), 2671 states have call successors, (2819) [2022-11-25 23:26:36,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7351 states to 7351 states and 10627 transitions. [2022-11-25 23:26:36,640 INFO L78 Accepts]: Start accepts. Automaton has 7351 states and 10627 transitions. Word has length 90 [2022-11-25 23:26:36,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:36,641 INFO L495 AbstractCegarLoop]: Abstraction has 7351 states and 10627 transitions. [2022-11-25 23:26:36,641 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, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-25 23:26:36,642 INFO L276 IsEmpty]: Start isEmpty. Operand 7351 states and 10627 transitions. [2022-11-25 23:26:36,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-25 23:26:36,644 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:36,644 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, 1] [2022-11-25 23:26:36,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 23:26:36,644 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:26:36,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:36,645 INFO L85 PathProgramCache]: Analyzing trace with hash -218945936, now seen corresponding path program 1 times [2022-11-25 23:26:36,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:26:36,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920886615] [2022-11-25 23:26:36,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:36,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:26:36,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:37,759 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 23:26:37,759 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:26:37,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920886615] [2022-11-25 23:26:37,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920886615] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:37,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:37,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:26:37,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882116331] [2022-11-25 23:26:37,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:37,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:26:37,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:26:37,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:26:37,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:26:37,761 INFO L87 Difference]: Start difference. First operand 7351 states and 10627 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 23:26:39,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:26:49,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:49,169 INFO L93 Difference]: Finished difference Result 7481 states and 10745 transitions. [2022-11-25 23:26:49,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:26:49,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 23:26:49,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:49,199 INFO L225 Difference]: With dead ends: 7481 [2022-11-25 23:26:49,200 INFO L226 Difference]: Without dead ends: 7479 [2022-11-25 23:26:49,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:26:49,206 INFO L413 NwaCegarLoop]: 3731 mSDtfsCounter, 4037 mSDsluCounter, 7498 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4043 SdHoareTripleChecker+Valid, 11229 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:49,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4043 Valid, 11229 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1212 Invalid, 1 Unknown, 0 Unchecked, 10.6s Time] [2022-11-25 23:26:49,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7479 states. [2022-11-25 23:26:49,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7479 to 7477. [2022-11-25 23:26:49,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7477 states, 4207 states have (on average 1.2400760637033517) internal successors, (5217), 4401 states have internal predecessors, (5217), 2691 states have call successors, (2691), 593 states have call predecessors, (2691), 576 states have return successors, (2833), 2622 states have call predecessors, (2833), 2685 states have call successors, (2833) [2022-11-25 23:26:49,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7477 states to 7477 states and 10741 transitions. [2022-11-25 23:26:49,868 INFO L78 Accepts]: Start accepts. Automaton has 7477 states and 10741 transitions. Word has length 96 [2022-11-25 23:26:49,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:49,869 INFO L495 AbstractCegarLoop]: Abstraction has 7477 states and 10741 transitions. [2022-11-25 23:26:49,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 23:26:49,869 INFO L276 IsEmpty]: Start isEmpty. Operand 7477 states and 10741 transitions. [2022-11-25 23:26:49,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-25 23:26:49,871 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:49,871 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:26:49,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 23:26:49,872 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:26:49,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:49,872 INFO L85 PathProgramCache]: Analyzing trace with hash -652150470, now seen corresponding path program 1 times [2022-11-25 23:26:49,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:26:49,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339277376] [2022-11-25 23:26:49,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:49,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:26:50,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:52,510 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 23:26:52,510 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:26:52,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339277376] [2022-11-25 23:26:52,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339277376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:52,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:52,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:26:52,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960089766] [2022-11-25 23:26:52,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:52,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:26:52,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:26:52,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:26:52,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:26:52,512 INFO L87 Difference]: Start difference. First operand 7477 states and 10741 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-25 23:26:54,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:27:07,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:27:07,193 INFO L93 Difference]: Finished difference Result 7495 states and 10756 transitions. [2022-11-25 23:27:07,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:27:07,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 114 [2022-11-25 23:27:07,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:27:07,232 INFO L225 Difference]: With dead ends: 7495 [2022-11-25 23:27:07,232 INFO L226 Difference]: Without dead ends: 7493 [2022-11-25 23:27:07,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:27:07,239 INFO L413 NwaCegarLoop]: 5009 mSDtfsCounter, 3038 mSDsluCounter, 12343 mSDsCounter, 0 mSdLazyCounter, 1743 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3043 SdHoareTripleChecker+Valid, 17352 SdHoareTripleChecker+Invalid, 1746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1743 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:27:07,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3043 Valid, 17352 Invalid, 1746 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1743 Invalid, 1 Unknown, 0 Unchecked, 13.9s Time] [2022-11-25 23:27:07,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7493 states. [2022-11-25 23:27:07,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7493 to 7485. [2022-11-25 23:27:07,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7485 states, 4213 states have (on average 1.2397341561832425) internal successors, (5223), 4407 states have internal predecessors, (5223), 2691 states have call successors, (2691), 595 states have call predecessors, (2691), 578 states have return successors, (2833), 2622 states have call predecessors, (2833), 2685 states have call successors, (2833) [2022-11-25 23:27:07,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7485 states to 7485 states and 10747 transitions. [2022-11-25 23:27:07,990 INFO L78 Accepts]: Start accepts. Automaton has 7485 states and 10747 transitions. Word has length 114 [2022-11-25 23:27:07,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:27:07,991 INFO L495 AbstractCegarLoop]: Abstraction has 7485 states and 10747 transitions. [2022-11-25 23:27:07,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-25 23:27:07,991 INFO L276 IsEmpty]: Start isEmpty. Operand 7485 states and 10747 transitions. [2022-11-25 23:27:07,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-25 23:27:07,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:27:07,992 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, 1] [2022-11-25 23:27:07,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 23:27:07,993 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:27:07,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:27:07,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1214393477, now seen corresponding path program 1 times [2022-11-25 23:27:07,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:27:07,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527702611] [2022-11-25 23:27:07,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:27:07,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:27:08,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:27:09,288 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 23:27:09,288 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:27:09,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527702611] [2022-11-25 23:27:09,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527702611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:27:09,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:27:09,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:27:09,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840873975] [2022-11-25 23:27:09,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:27:09,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:27:09,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:27:09,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:27:09,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:27:09,290 INFO L87 Difference]: Start difference. First operand 7485 states and 10747 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 23:27:11,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:27:20,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:27:20,332 INFO L93 Difference]: Finished difference Result 7561 states and 10799 transitions. [2022-11-25 23:27:20,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:27:20,332 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 101 [2022-11-25 23:27:20,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:27:20,356 INFO L225 Difference]: With dead ends: 7561 [2022-11-25 23:27:20,357 INFO L226 Difference]: Without dead ends: 7559 [2022-11-25 23:27:20,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:27:20,362 INFO L413 NwaCegarLoop]: 3714 mSDtfsCounter, 4018 mSDsluCounter, 7482 mSDsCounter, 0 mSdLazyCounter, 1220 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4023 SdHoareTripleChecker+Valid, 11196 SdHoareTripleChecker+Invalid, 1223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1220 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:27:20,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4023 Valid, 11196 Invalid, 1223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1220 Invalid, 1 Unknown, 0 Unchecked, 10.2s Time] [2022-11-25 23:27:20,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7559 states. [2022-11-25 23:27:21,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7559 to 7557. [2022-11-25 23:27:21,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7557 states, 4257 states have (on average 1.2381959126145172) internal successors, (5271), 4451 states have internal predecessors, (5271), 2691 states have call successors, (2691), 623 states have call predecessors, (2691), 606 states have return successors, (2833), 2622 states have call predecessors, (2833), 2685 states have call successors, (2833) [2022-11-25 23:27:21,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7557 states to 7557 states and 10795 transitions. [2022-11-25 23:27:21,048 INFO L78 Accepts]: Start accepts. Automaton has 7557 states and 10795 transitions. Word has length 101 [2022-11-25 23:27:21,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:27:21,048 INFO L495 AbstractCegarLoop]: Abstraction has 7557 states and 10795 transitions. [2022-11-25 23:27:21,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 23:27:21,049 INFO L276 IsEmpty]: Start isEmpty. Operand 7557 states and 10795 transitions. [2022-11-25 23:27:21,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-25 23:27:21,051 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:27:21,051 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:27:21,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 23:27:21,052 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:27:21,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:27:21,052 INFO L85 PathProgramCache]: Analyzing trace with hash -151661009, now seen corresponding path program 1 times [2022-11-25 23:27:21,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:27:21,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855287211] [2022-11-25 23:27:21,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:27:21,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:27:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:27:22,317 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2022-11-25 23:27:22,317 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:27:22,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855287211] [2022-11-25 23:27:22,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855287211] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:27:22,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:27:22,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:27:22,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178677076] [2022-11-25 23:27:22,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:27:22,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:27:22,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:27:22,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:27:22,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:27:22,319 INFO L87 Difference]: Start difference. First operand 7557 states and 10795 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-25 23:27:24,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:27:33,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:27:33,349 INFO L93 Difference]: Finished difference Result 7567 states and 10804 transitions. [2022-11-25 23:27:33,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:27:33,349 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 105 [2022-11-25 23:27:33,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:27:33,375 INFO L225 Difference]: With dead ends: 7567 [2022-11-25 23:27:33,375 INFO L226 Difference]: Without dead ends: 7565 [2022-11-25 23:27:33,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:27:33,379 INFO L413 NwaCegarLoop]: 3709 mSDtfsCounter, 4074 mSDsluCounter, 7392 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4078 SdHoareTripleChecker+Valid, 11101 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:27:33,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4078 Valid, 11101 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1202 Invalid, 1 Unknown, 0 Unchecked, 10.2s Time] [2022-11-25 23:27:33,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7565 states. [2022-11-25 23:27:34,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7565 to 7565. [2022-11-25 23:27:34,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7565 states, 4263 states have (on average 1.2378606615059817) internal successors, (5277), 4457 states have internal predecessors, (5277), 2691 states have call successors, (2691), 625 states have call predecessors, (2691), 608 states have return successors, (2833), 2622 states have call predecessors, (2833), 2685 states have call successors, (2833) [2022-11-25 23:27:34,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7565 states to 7565 states and 10801 transitions. [2022-11-25 23:27:34,045 INFO L78 Accepts]: Start accepts. Automaton has 7565 states and 10801 transitions. Word has length 105 [2022-11-25 23:27:34,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:27:34,045 INFO L495 AbstractCegarLoop]: Abstraction has 7565 states and 10801 transitions. [2022-11-25 23:27:34,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-25 23:27:34,046 INFO L276 IsEmpty]: Start isEmpty. Operand 7565 states and 10801 transitions. [2022-11-25 23:27:34,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-25 23:27:34,047 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:27:34,048 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 23:27:34,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 23:27:34,048 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:27:34,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:27:34,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1541188518, now seen corresponding path program 1 times [2022-11-25 23:27:34,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:27:34,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526519112] [2022-11-25 23:27:34,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:27:34,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:27:34,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:27:35,185 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 23:27:35,185 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:27:35,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526519112] [2022-11-25 23:27:35,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526519112] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:27:35,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:27:35,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:27:35,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005071248] [2022-11-25 23:27:35,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:27:35,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:27:35,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:27:35,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:27:35,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:27:35,188 INFO L87 Difference]: Start difference. First operand 7565 states and 10801 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 23:27:37,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:27:46,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:27:46,287 INFO L93 Difference]: Finished difference Result 7575 states and 10810 transitions. [2022-11-25 23:27:46,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:27:46,288 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 23:27:46,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:27:46,311 INFO L225 Difference]: With dead ends: 7575 [2022-11-25 23:27:46,311 INFO L226 Difference]: Without dead ends: 7573 [2022-11-25 23:27:46,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:27:46,316 INFO L413 NwaCegarLoop]: 3709 mSDtfsCounter, 4074 mSDsluCounter, 7392 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4077 SdHoareTripleChecker+Valid, 11101 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:27:46,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4077 Valid, 11101 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1202 Invalid, 1 Unknown, 0 Unchecked, 10.3s Time] [2022-11-25 23:27:46,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7573 states. [2022-11-25 23:27:47,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7573 to 7573. [2022-11-25 23:27:47,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7573 states, 4269 states have (on average 1.2375263527758258) internal successors, (5283), 4463 states have internal predecessors, (5283), 2691 states have call successors, (2691), 627 states have call predecessors, (2691), 610 states have return successors, (2833), 2622 states have call predecessors, (2833), 2685 states have call successors, (2833) [2022-11-25 23:27:47,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7573 states to 7573 states and 10807 transitions. [2022-11-25 23:27:47,083 INFO L78 Accepts]: Start accepts. Automaton has 7573 states and 10807 transitions. Word has length 110 [2022-11-25 23:27:47,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:27:47,084 INFO L495 AbstractCegarLoop]: Abstraction has 7573 states and 10807 transitions. [2022-11-25 23:27:47,084 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 23:27:47,084 INFO L276 IsEmpty]: Start isEmpty. Operand 7573 states and 10807 transitions. [2022-11-25 23:27:47,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-25 23:27:47,087 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:27:47,088 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 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, 1, 1] [2022-11-25 23:27:47,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 23:27:47,088 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:27:47,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:27:47,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1512095823, now seen corresponding path program 1 times [2022-11-25 23:27:47,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:27:47,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842464066] [2022-11-25 23:27:47,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:27:47,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:27:47,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:27:48,074 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2022-11-25 23:27:48,075 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:27:48,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842464066] [2022-11-25 23:27:48,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842464066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:27:48,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:27:48,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:27:48,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112946044] [2022-11-25 23:27:48,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:27:48,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:27:48,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:27:48,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:27:48,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:27:48,077 INFO L87 Difference]: Start difference. First operand 7573 states and 10807 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, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-25 23:27:50,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:27:59,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:27:59,069 INFO L93 Difference]: Finished difference Result 7583 states and 10816 transitions. [2022-11-25 23:27:59,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:27:59,069 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, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 115 [2022-11-25 23:27:59,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:27:59,093 INFO L225 Difference]: With dead ends: 7583 [2022-11-25 23:27:59,093 INFO L226 Difference]: Without dead ends: 7581 [2022-11-25 23:27:59,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:27:59,099 INFO L413 NwaCegarLoop]: 3709 mSDtfsCounter, 4074 mSDsluCounter, 7392 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4076 SdHoareTripleChecker+Valid, 11101 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:27:59,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4076 Valid, 11101 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1202 Invalid, 1 Unknown, 0 Unchecked, 10.1s Time] [2022-11-25 23:27:59,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7581 states. [2022-11-25 23:27:59,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7581 to 7581. [2022-11-25 23:27:59,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7581 states, 4275 states have (on average 1.2371929824561403) internal successors, (5289), 4469 states have internal predecessors, (5289), 2691 states have call successors, (2691), 629 states have call predecessors, (2691), 612 states have return successors, (2833), 2622 states have call predecessors, (2833), 2685 states have call successors, (2833) [2022-11-25 23:27:59,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7581 states to 7581 states and 10813 transitions. [2022-11-25 23:27:59,823 INFO L78 Accepts]: Start accepts. Automaton has 7581 states and 10813 transitions. Word has length 115 [2022-11-25 23:27:59,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:27:59,824 INFO L495 AbstractCegarLoop]: Abstraction has 7581 states and 10813 transitions. [2022-11-25 23:27:59,824 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, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-25 23:27:59,824 INFO L276 IsEmpty]: Start isEmpty. Operand 7581 states and 10813 transitions. [2022-11-25 23:27:59,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-25 23:27:59,825 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:27:59,825 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:27:59,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 23:27:59,826 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:27:59,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:27:59,826 INFO L85 PathProgramCache]: Analyzing trace with hash 729008465, now seen corresponding path program 1 times [2022-11-25 23:27:59,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:27:59,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331365424] [2022-11-25 23:27:59,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:27:59,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:28:00,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:28:02,277 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-25 23:28:02,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:28:02,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331365424] [2022-11-25 23:28:02,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331365424] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:28:02,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:28:02,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:28:02,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882904756] [2022-11-25 23:28:02,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:28:02,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:28:02,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:28:02,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:28:02,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:28:02,280 INFO L87 Difference]: Start difference. First operand 7581 states and 10813 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-25 23:28:04,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:28:16,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:28:16,565 INFO L93 Difference]: Finished difference Result 7601 states and 10829 transitions. [2022-11-25 23:28:16,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:28:16,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 142 [2022-11-25 23:28:16,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:28:16,585 INFO L225 Difference]: With dead ends: 7601 [2022-11-25 23:28:16,585 INFO L226 Difference]: Without dead ends: 7599 [2022-11-25 23:28:16,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:28:16,588 INFO L413 NwaCegarLoop]: 4730 mSDtfsCounter, 3907 mSDsluCounter, 12690 mSDsCounter, 0 mSdLazyCounter, 1606 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3912 SdHoareTripleChecker+Valid, 17420 SdHoareTripleChecker+Invalid, 1610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1606 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:28:16,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3912 Valid, 17420 Invalid, 1610 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1606 Invalid, 1 Unknown, 0 Unchecked, 13.2s Time] [2022-11-25 23:28:16,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7599 states. [2022-11-25 23:28:17,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7599 to 7589. [2022-11-25 23:28:17,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7589 states, 4281 states have (on average 1.2368605466012614) internal successors, (5295), 4475 states have internal predecessors, (5295), 2691 states have call successors, (2691), 631 states have call predecessors, (2691), 614 states have return successors, (2833), 2622 states have call predecessors, (2833), 2685 states have call successors, (2833) [2022-11-25 23:28:17,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7589 states to 7589 states and 10819 transitions. [2022-11-25 23:28:17,200 INFO L78 Accepts]: Start accepts. Automaton has 7589 states and 10819 transitions. Word has length 142 [2022-11-25 23:28:17,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:28:17,200 INFO L495 AbstractCegarLoop]: Abstraction has 7589 states and 10819 transitions. [2022-11-25 23:28:17,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-25 23:28:17,201 INFO L276 IsEmpty]: Start isEmpty. Operand 7589 states and 10819 transitions. [2022-11-25 23:28:17,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-25 23:28:17,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:28:17,203 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 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, 1, 1, 1, 1, 1] [2022-11-25 23:28:17,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 23:28:17,203 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:28:17,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:28:17,204 INFO L85 PathProgramCache]: Analyzing trace with hash 691753413, now seen corresponding path program 1 times [2022-11-25 23:28:17,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:28:17,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822429015] [2022-11-25 23:28:17,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:28:17,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:28:17,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:28:18,549 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2022-11-25 23:28:18,549 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:28:18,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822429015] [2022-11-25 23:28:18,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822429015] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:28:18,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:28:18,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:28:18,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657964528] [2022-11-25 23:28:18,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:28:18,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:28:18,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:28:18,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:28:18,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:28:18,552 INFO L87 Difference]: Start difference. First operand 7589 states and 10819 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 23:28:20,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:28:30,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:28:30,517 INFO L93 Difference]: Finished difference Result 7633 states and 10855 transitions. [2022-11-25 23:28:30,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:28:30,518 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 121 [2022-11-25 23:28:30,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:28:30,543 INFO L225 Difference]: With dead ends: 7633 [2022-11-25 23:28:30,543 INFO L226 Difference]: Without dead ends: 7629 [2022-11-25 23:28:30,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:28:30,548 INFO L413 NwaCegarLoop]: 3709 mSDtfsCounter, 4045 mSDsluCounter, 7422 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4046 SdHoareTripleChecker+Valid, 11131 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:28:30,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4046 Valid, 11131 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1207 Invalid, 1 Unknown, 0 Unchecked, 11.0s Time] [2022-11-25 23:28:30,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7629 states. [2022-11-25 23:28:31,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7629 to 7627. [2022-11-25 23:28:31,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7627 states, 4308 states have (on average 1.2360724233983287) internal successors, (5325), 4501 states have internal predecessors, (5325), 2691 states have call successors, (2691), 643 states have call predecessors, (2691), 625 states have return successors, (2833), 2622 states have call predecessors, (2833), 2685 states have call successors, (2833) [2022-11-25 23:28:31,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7627 states to 7627 states and 10849 transitions. [2022-11-25 23:28:31,217 INFO L78 Accepts]: Start accepts. Automaton has 7627 states and 10849 transitions. Word has length 121 [2022-11-25 23:28:31,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:28:31,217 INFO L495 AbstractCegarLoop]: Abstraction has 7627 states and 10849 transitions. [2022-11-25 23:28:31,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 23:28:31,217 INFO L276 IsEmpty]: Start isEmpty. Operand 7627 states and 10849 transitions. [2022-11-25 23:28:31,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-25 23:28:31,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:28:31,221 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 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, 1, 1, 1, 1, 1, 1] [2022-11-25 23:28:31,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-25 23:28:31,221 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:28:31,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:28:31,222 INFO L85 PathProgramCache]: Analyzing trace with hash 456602223, now seen corresponding path program 1 times [2022-11-25 23:28:31,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:28:31,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061269751] [2022-11-25 23:28:31,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:28:31,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:28:31,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:28:32,538 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 623 trivial. 0 not checked. [2022-11-25 23:28:32,538 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:28:32,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061269751] [2022-11-25 23:28:32,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061269751] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:28:32,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:28:32,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:28:32,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692082585] [2022-11-25 23:28:32,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:28:32,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:28:32,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:28:32,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:28:32,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:28:32,541 INFO L87 Difference]: Start difference. First operand 7627 states and 10849 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, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-25 23:28:34,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:28:43,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:28:43,524 INFO L93 Difference]: Finished difference Result 7633 states and 10854 transitions. [2022-11-25 23:28:43,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:28:43,525 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, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 125 [2022-11-25 23:28:43,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:28:43,551 INFO L225 Difference]: With dead ends: 7633 [2022-11-25 23:28:43,551 INFO L226 Difference]: Without dead ends: 7429 [2022-11-25 23:28:43,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:28:43,557 INFO L413 NwaCegarLoop]: 3710 mSDtfsCounter, 4074 mSDsluCounter, 7394 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4074 SdHoareTripleChecker+Valid, 11104 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:28:43,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4074 Valid, 11104 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1199 Invalid, 1 Unknown, 0 Unchecked, 10.0s Time] [2022-11-25 23:28:43,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7429 states. [2022-11-25 23:28:44,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7429 to 7429. [2022-11-25 23:28:44,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7429 states, 4192 states have (on average 1.2416507633587786) internal successors, (5205), 4383 states have internal predecessors, (5205), 2645 states have call successors, (2645), 606 states have call predecessors, (2645), 589 states have return successors, (2790), 2579 states have call predecessors, (2790), 2642 states have call successors, (2790) [2022-11-25 23:28:44,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7429 states to 7429 states and 10640 transitions. [2022-11-25 23:28:44,429 INFO L78 Accepts]: Start accepts. Automaton has 7429 states and 10640 transitions. Word has length 125 [2022-11-25 23:28:44,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:28:44,429 INFO L495 AbstractCegarLoop]: Abstraction has 7429 states and 10640 transitions. [2022-11-25 23:28:44,429 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, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-25 23:28:44,429 INFO L276 IsEmpty]: Start isEmpty. Operand 7429 states and 10640 transitions. [2022-11-25 23:28:44,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-11-25 23:28:44,432 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:28:44,432 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:28:44,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-25 23:28:44,433 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:28:44,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:28:44,433 INFO L85 PathProgramCache]: Analyzing trace with hash 735451456, now seen corresponding path program 1 times [2022-11-25 23:28:44,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:28:44,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128540411] [2022-11-25 23:28:44,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:28:44,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:28:44,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:28:45,338 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-11-25 23:28:45,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:28:45,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128540411] [2022-11-25 23:28:45,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128540411] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:28:45,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:28:45,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:28:45,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297464089] [2022-11-25 23:28:45,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:28:45,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:28:45,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:28:45,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:28:45,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:28:45,342 INFO L87 Difference]: Start difference. First operand 7429 states and 10640 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-25 23:28:47,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:28:57,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:28:57,975 INFO L93 Difference]: Finished difference Result 14852 states and 21281 transitions. [2022-11-25 23:28:57,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:28:57,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 150 [2022-11-25 23:28:57,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:28:58,012 INFO L225 Difference]: With dead ends: 14852 [2022-11-25 23:28:58,012 INFO L226 Difference]: Without dead ends: 7437 [2022-11-25 23:28:58,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:28:58,053 INFO L413 NwaCegarLoop]: 3663 mSDtfsCounter, 10 mSDsluCounter, 7308 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 10971 SdHoareTripleChecker+Invalid, 1194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:28:58,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 10971 Invalid, 1194 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1191 Invalid, 1 Unknown, 0 Unchecked, 11.4s Time] [2022-11-25 23:28:58,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7437 states. [2022-11-25 23:28:59,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7437 to 7433. [2022-11-25 23:28:59,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7433 states, 4194 states have (on average 1.2415355269432522) internal successors, (5207), 4387 states have internal predecessors, (5207), 2645 states have call successors, (2645), 606 states have call predecessors, (2645), 591 states have return successors, (2792), 2579 states have call predecessors, (2792), 2642 states have call successors, (2792) [2022-11-25 23:28:59,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7433 states to 7433 states and 10644 transitions. [2022-11-25 23:28:59,274 INFO L78 Accepts]: Start accepts. Automaton has 7433 states and 10644 transitions. Word has length 150 [2022-11-25 23:28:59,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:28:59,275 INFO L495 AbstractCegarLoop]: Abstraction has 7433 states and 10644 transitions. [2022-11-25 23:28:59,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-25 23:28:59,275 INFO L276 IsEmpty]: Start isEmpty. Operand 7433 states and 10644 transitions. [2022-11-25 23:28:59,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-25 23:28:59,278 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:28:59,279 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:28:59,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-25 23:28:59,279 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:28:59,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:28:59,280 INFO L85 PathProgramCache]: Analyzing trace with hash -853362942, now seen corresponding path program 1 times [2022-11-25 23:28:59,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:28:59,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040531320] [2022-11-25 23:28:59,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:28:59,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:28:59,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:29:00,322 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-25 23:29:00,322 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:29:00,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040531320] [2022-11-25 23:29:00,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040531320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:29:00,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:29:00,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:29:00,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039560366] [2022-11-25 23:29:00,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:29:00,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:29:00,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:29:00,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:29:00,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:29:00,324 INFO L87 Difference]: Start difference. First operand 7433 states and 10644 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-25 23:29:02,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:29:09,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:29:09,419 INFO L93 Difference]: Finished difference Result 14717 states and 21243 transitions. [2022-11-25 23:29:09,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:29:09,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 151 [2022-11-25 23:29:09,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:29:09,450 INFO L225 Difference]: With dead ends: 14717 [2022-11-25 23:29:09,450 INFO L226 Difference]: Without dead ends: 7298 [2022-11-25 23:29:09,483 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 23:29:09,483 INFO L413 NwaCegarLoop]: 3666 mSDtfsCounter, 1 mSDsluCounter, 3663 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 7329 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:29:09,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 7329 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 789 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2022-11-25 23:29:09,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7298 states. [2022-11-25 23:29:10,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7298 to 7296. [2022-11-25 23:29:10,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7296 states, 4120 states have (on average 1.2402912621359223) internal successors, (5110), 4308 states have internal predecessors, (5110), 2587 states have call successors, (2587), 601 states have call predecessors, (2587), 586 states have return successors, (2718), 2522 states have call predecessors, (2718), 2584 states have call successors, (2718) [2022-11-25 23:29:10,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7296 states to 7296 states and 10415 transitions. [2022-11-25 23:29:10,257 INFO L78 Accepts]: Start accepts. Automaton has 7296 states and 10415 transitions. Word has length 151 [2022-11-25 23:29:10,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:29:10,258 INFO L495 AbstractCegarLoop]: Abstraction has 7296 states and 10415 transitions. [2022-11-25 23:29:10,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-25 23:29:10,258 INFO L276 IsEmpty]: Start isEmpty. Operand 7296 states and 10415 transitions. [2022-11-25 23:29:10,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-25 23:29:10,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:29:10,261 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:29:10,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-25 23:29:10,261 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:29:10,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:29:10,262 INFO L85 PathProgramCache]: Analyzing trace with hash 10805589, now seen corresponding path program 1 times [2022-11-25 23:29:10,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:29:10,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880366410] [2022-11-25 23:29:10,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:29:10,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:29:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:29:10,993 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-11-25 23:29:10,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:29:10,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880366410] [2022-11-25 23:29:10,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880366410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:29:10,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:29:10,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:29:10,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865370991] [2022-11-25 23:29:10,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:29:10,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:29:10,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:29:10,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:29:10,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:29:10,996 INFO L87 Difference]: Start difference. First operand 7296 states and 10415 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 23:29:13,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:29:20,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:29:20,325 INFO L93 Difference]: Finished difference Result 14856 states and 21266 transitions. [2022-11-25 23:29:20,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:29:20,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 153 [2022-11-25 23:29:20,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:29:20,354 INFO L225 Difference]: With dead ends: 14856 [2022-11-25 23:29:20,354 INFO L226 Difference]: Without dead ends: 7574 [2022-11-25 23:29:20,377 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 23:29:20,378 INFO L413 NwaCegarLoop]: 3724 mSDtfsCounter, 242 mSDsluCounter, 3511 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 7235 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:29:20,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 7235 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 773 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2022-11-25 23:29:20,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7574 states. [2022-11-25 23:29:21,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7574 to 7304. [2022-11-25 23:29:21,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7304 states, 4126 states have (on average 1.240426563257392) internal successors, (5118), 4315 states have internal predecessors, (5118), 2588 states have call successors, (2588), 601 states have call predecessors, (2588), 587 states have return successors, (2721), 2523 states have call predecessors, (2721), 2585 states have call successors, (2721) [2022-11-25 23:29:21,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7304 states to 7304 states and 10427 transitions. [2022-11-25 23:29:21,412 INFO L78 Accepts]: Start accepts. Automaton has 7304 states and 10427 transitions. Word has length 153 [2022-11-25 23:29:21,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:29:21,413 INFO L495 AbstractCegarLoop]: Abstraction has 7304 states and 10427 transitions. [2022-11-25 23:29:21,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 23:29:21,413 INFO L276 IsEmpty]: Start isEmpty. Operand 7304 states and 10427 transitions. [2022-11-25 23:29:21,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-25 23:29:21,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:29:21,417 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:29:21,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-25 23:29:21,417 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:29:21,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:29:21,418 INFO L85 PathProgramCache]: Analyzing trace with hash -2115442812, now seen corresponding path program 1 times [2022-11-25 23:29:21,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:29:21,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853474777] [2022-11-25 23:29:21,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:29:21,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:29:21,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:29:22,332 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-11-25 23:29:22,332 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:29:22,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853474777] [2022-11-25 23:29:22,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853474777] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:29:22,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:29:22,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:29:22,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050631063] [2022-11-25 23:29:22,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:29:22,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:29:22,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:29:22,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:29:22,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:29:22,335 INFO L87 Difference]: Start difference. First operand 7304 states and 10427 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-11-25 23:29:24,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:29:32,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:29:32,255 INFO L93 Difference]: Finished difference Result 14653 states and 20958 transitions. [2022-11-25 23:29:32,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:29:32,255 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 154 [2022-11-25 23:29:32,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:29:32,297 INFO L225 Difference]: With dead ends: 14653 [2022-11-25 23:29:32,297 INFO L226 Difference]: Without dead ends: 7363 [2022-11-25 23:29:32,323 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 23:29:32,324 INFO L413 NwaCegarLoop]: 3688 mSDtfsCounter, 26 mSDsluCounter, 3670 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 7358 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:29:32,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 7358 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 792 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time] [2022-11-25 23:29:32,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7363 states. [2022-11-25 23:29:33,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7363 to 7306. [2022-11-25 23:29:33,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7306 states, 4128 states have (on average 1.2403100775193798) internal successors, (5120), 4317 states have internal predecessors, (5120), 2588 states have call successors, (2588), 601 states have call predecessors, (2588), 587 states have return successors, (2721), 2523 states have call predecessors, (2721), 2585 states have call successors, (2721) [2022-11-25 23:29:33,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7306 states to 7306 states and 10429 transitions. [2022-11-25 23:29:33,251 INFO L78 Accepts]: Start accepts. Automaton has 7306 states and 10429 transitions. Word has length 154 [2022-11-25 23:29:33,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:29:33,251 INFO L495 AbstractCegarLoop]: Abstraction has 7306 states and 10429 transitions. [2022-11-25 23:29:33,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-11-25 23:29:33,252 INFO L276 IsEmpty]: Start isEmpty. Operand 7306 states and 10429 transitions. [2022-11-25 23:29:33,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-25 23:29:33,255 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:29:33,255 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:29:33,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-25 23:29:33,256 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:29:33,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:29:33,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1300068114, now seen corresponding path program 1 times [2022-11-25 23:29:33,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:29:33,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541488687] [2022-11-25 23:29:33,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:29:33,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:29:33,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:29:35,213 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-11-25 23:29:35,213 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:29:35,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541488687] [2022-11-25 23:29:35,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541488687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:29:35,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:29:35,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:29:35,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747804148] [2022-11-25 23:29:35,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:29:35,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:29:35,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:29:35,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:29:35,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:29:35,216 INFO L87 Difference]: Start difference. First operand 7306 states and 10429 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 23:29:37,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:29:47,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:29:47,872 INFO L93 Difference]: Finished difference Result 7326 states and 10447 transitions. [2022-11-25 23:29:47,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:29:47,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 155 [2022-11-25 23:29:47,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:29:47,912 INFO L225 Difference]: With dead ends: 7326 [2022-11-25 23:29:47,912 INFO L226 Difference]: Without dead ends: 7324 [2022-11-25 23:29:47,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:29:47,919 INFO L413 NwaCegarLoop]: 3667 mSDtfsCounter, 3973 mSDsluCounter, 7352 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3978 SdHoareTripleChecker+Valid, 11019 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:29:47,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3978 Valid, 11019 Invalid, 1196 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1193 Invalid, 1 Unknown, 0 Unchecked, 11.3s Time] [2022-11-25 23:29:47,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7324 states. [2022-11-25 23:29:48,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7324 to 7322. [2022-11-25 23:29:48,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7322 states, 4140 states have (on average 1.2396135265700483) internal successors, (5132), 4329 states have internal predecessors, (5132), 2588 states have call successors, (2588), 605 states have call predecessors, (2588), 591 states have return successors, (2721), 2523 states have call predecessors, (2721), 2585 states have call successors, (2721) [2022-11-25 23:29:48,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7322 states to 7322 states and 10441 transitions. [2022-11-25 23:29:48,881 INFO L78 Accepts]: Start accepts. Automaton has 7322 states and 10441 transitions. Word has length 155 [2022-11-25 23:29:48,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:29:48,881 INFO L495 AbstractCegarLoop]: Abstraction has 7322 states and 10441 transitions. [2022-11-25 23:29:48,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 23:29:48,881 INFO L276 IsEmpty]: Start isEmpty. Operand 7322 states and 10441 transitions. [2022-11-25 23:29:48,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-11-25 23:29:48,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:29:48,885 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:29:48,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-25 23:29:48,886 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:29:48,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:29:48,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1901511884, now seen corresponding path program 1 times [2022-11-25 23:29:48,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:29:48,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706933894] [2022-11-25 23:29:48,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:29:48,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:29:49,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:29:50,055 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-11-25 23:29:50,055 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:29:50,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706933894] [2022-11-25 23:29:50,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706933894] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:29:50,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543580210] [2022-11-25 23:29:50,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:29:50,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:29:50,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e4ee1-7929-4665-b37a-74faa6c0ebde/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:29:50,058 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e4ee1-7929-4665-b37a-74faa6c0ebde/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:29:50,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e4ee1-7929-4665-b37a-74faa6c0ebde/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:29:54,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:29:54,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 5734 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:29:54,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:29:54,773 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-11-25 23:29:54,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:29:55,084 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-11-25 23:29:55,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543580210] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:29:55,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [264310529] [2022-11-25 23:29:55,114 INFO L159 IcfgInterpreter]: Started Sifa with 104 locations of interest [2022-11-25 23:29:55,115 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:29:55,120 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:29:55,127 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:29:55,127 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:30:07,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:07,840 INFO L217 Elim1Store]: Index analysis took 292 ms [2022-11-25 23:31:59,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 51 select indices, 51 select index equivalence classes, 1326 disjoint index pairs (out of 1275 index pairs), introduced 51 new quantified variables, introduced 0 case distinctions, treesize of input 5105 treesize of output 4367