./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9f7a88-f451-413e-b382-08a30df19217/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9f7a88-f451-413e-b382-08a30df19217/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9f7a88-f451-413e-b382-08a30df19217/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9f7a88-f451-413e-b382-08a30df19217/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9f7a88-f451-413e-b382-08a30df19217/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9f7a88-f451-413e-b382-08a30df19217/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 52f53de973aa03e2a9eaadeeb26ce30c3104ed671c54a416d14fc4c2bdab8bd9 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 06:50:43,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:50:43,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:50:43,511 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:50:43,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:50:43,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:50:43,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:50:43,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:50:43,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:50:43,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:50:43,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:50:43,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:50:43,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:50:43,521 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:50:43,522 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:50:43,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:50:43,523 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:50:43,524 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:50:43,526 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:50:43,528 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:50:43,529 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:50:43,530 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:50:43,531 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:50:43,532 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:50:43,535 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:50:43,535 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:50:43,536 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:50:43,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:50:43,537 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:50:43,538 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:50:43,538 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:50:43,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:50:43,539 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:50:43,540 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:50:43,541 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:50:43,541 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:50:43,542 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:50:43,542 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:50:43,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:50:43,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:50:43,544 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:50:43,544 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9f7a88-f451-413e-b382-08a30df19217/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 06:50:43,566 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:50:43,566 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:50:43,566 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:50:43,566 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:50:43,567 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:50:43,567 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:50:43,567 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:50:43,568 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:50:43,568 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:50:43,568 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:50:43,568 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:50:43,568 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:50:43,568 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:50:43,568 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:50:43,569 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:50:43,569 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:50:43,569 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:50:43,569 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:50:43,570 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:50:43,570 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:50:43,570 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:50:43,570 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:50:43,570 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:50:43,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:50:43,571 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:50:43,571 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:50:43,571 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:50:43,571 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:50:43,571 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:50:43,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:50:43,572 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:50:43,572 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:50:43,572 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:50:43,572 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:50:43,572 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:50:43,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:50:43,573 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:50:43,573 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:50:43,573 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_dd9f7a88-f451-413e-b382-08a30df19217/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9f7a88-f451-413e-b382-08a30df19217/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52f53de973aa03e2a9eaadeeb26ce30c3104ed671c54a416d14fc4c2bdab8bd9 [2022-12-14 06:50:43,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:50:43,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:50:43,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:50:43,788 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:50:43,788 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:50:43,789 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9f7a88-f451-413e-b382-08a30df19217/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2022-12-14 06:50:46,372 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:50:46,783 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:50:46,784 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9f7a88-f451-413e-b382-08a30df19217/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2022-12-14 06:50:46,813 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9f7a88-f451-413e-b382-08a30df19217/bin/utaipan-gh47qXpMRh/data/b0adb52ed/9315db9fa1fe434ebde9259100740fb7/FLAGeccb91e87 [2022-12-14 06:50:46,937 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9f7a88-f451-413e-b382-08a30df19217/bin/utaipan-gh47qXpMRh/data/b0adb52ed/9315db9fa1fe434ebde9259100740fb7 [2022-12-14 06:50:46,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:50:46,940 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:50:46,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:50:46,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:50:46,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:50:46,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:50:46" (1/1) ... [2022-12-14 06:50:46,945 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7190c0f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:46, skipping insertion in model container [2022-12-14 06:50:46,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:50:46" (1/1) ... [2022-12-14 06:50:46,951 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:50:47,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:50:47,730 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 06:50:47,741 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 06:50:47,751 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 06:50:47,792 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 06:50:47,860 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 06:50:47,861 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 06:50:47,861 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 06:50:47,862 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-14 06:50:47,867 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 06:50:47,867 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 06:50:47,868 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 06:50:47,868 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-12-14 06:50:47,904 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 06:50:47,908 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 06:50:47,908 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 06:50:47,915 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 06:50:47,936 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 06:50:47,943 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 06:50:47,945 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 06:50:47,980 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 06:50:48,033 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-14 06:50:48,043 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 06:50:48,087 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 06:50:48,088 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 06:50:48,097 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 06:50:48,098 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:48,121 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-14 06:50:48,158 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_byte [2022-12-14 06:50:48,162 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-12-14 06:50:48,167 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_byte [2022-12-14 06:50:48,173 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_word [2022-12-14 06:50:48,212 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 06:50:48,685 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:48,686 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:48,686 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:48,687 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:48,687 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:48,688 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:48,688 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:48,689 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:48,689 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:48,689 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:48,690 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:48,691 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:48,692 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:48,692 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:48,694 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 06:50:48,694 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 06:50:48,696 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:50:48,704 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:48,705 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:48,709 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 06:50:48,710 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:48,711 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:48,712 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:48,712 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:48,714 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:48,714 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:48,715 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:48,715 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:48,716 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:48,716 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:48,717 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:48,717 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:48,724 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:48,725 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:48,726 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:48,731 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:48,739 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:48,740 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-12-14 06:50:48,743 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:48,750 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:48,751 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 06:50:48,752 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 06:50:48,775 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:48,788 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 06:50:48,809 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 06:50:48,822 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-14 06:50:48,823 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 06:50:48,824 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 06:50:48,830 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 06:50:48,830 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 06:50:48,902 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:48,907 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:48,910 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:48,911 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:48,911 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:48,912 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:48,913 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:48,913 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:48,914 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:48,914 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:48,934 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 06:50:48,935 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 06:50:48,949 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:48,954 WARN L623 FunctionHandler]: Unknown extern function strncpy [2022-12-14 06:50:48,955 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-12-14 06:50:48,975 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:48,977 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:48,977 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:48,978 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:48,980 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:48,985 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:48,986 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:49,023 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:49,024 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:49,024 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:49,024 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:49,026 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:49,029 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,029 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,036 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:49,036 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:49,036 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:49,037 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:49,037 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:49,037 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:49,038 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:49,038 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:49,038 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:49,038 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:49,042 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:49,043 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:49,045 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-12-14 06:50:49,046 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-12-14 06:50:49,046 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-12-14 06:50:49,047 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-12-14 06:50:49,048 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-12-14 06:50:49,048 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-12-14 06:50:49,049 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-12-14 06:50:49,049 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-12-14 06:50:49,050 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-12-14 06:50:49,050 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-12-14 06:50:49,051 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-12-14 06:50:49,052 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-12-14 06:50:49,053 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-12-14 06:50:49,053 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-12-14 06:50:49,055 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,055 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,055 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,056 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,056 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,056 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,057 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,057 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,058 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,059 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,059 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,059 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,060 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,060 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,061 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,061 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,062 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,063 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,064 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,064 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,065 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,065 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,066 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,066 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,067 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,068 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,068 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,069 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,070 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,074 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,074 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,075 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,075 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,075 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,076 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,076 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,076 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,077 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,078 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,078 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,079 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,082 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 06:50:49,097 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 06:50:49,097 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:49,098 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 06:50:49,100 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 06:50:49,102 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 06:50:49,539 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 06:50:49,539 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 06:50:49,540 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 06:50:49,540 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 06:50:49,541 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 06:50:49,541 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 06:50:49,542 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 06:50:49,542 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 06:50:49,543 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 06:50:49,543 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 06:50:49,544 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 06:50:49,544 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 06:50:49,545 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 06:50:49,547 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 06:50:49,548 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 06:50:49,557 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 06:50:49,558 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 06:50:49,562 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 06:50:49,562 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 06:50:49,563 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 06:50:49,565 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 06:50:49,565 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 06:50:49,565 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 06:50:49,566 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 06:50:49,566 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 06:50:49,566 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 06:50:49,567 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 06:50:49,567 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 06:50:49,567 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 06:50:49,568 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 06:50:49,568 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 06:50:49,569 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 06:50:49,569 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 06:50:49,569 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 06:50:49,630 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 06:50:49,630 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 06:50:49,639 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 06:50:50,210 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_dd9f7a88-f451-413e-b382-08a30df19217/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[479863,479876] [2022-12-14 06:50:50,213 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_dd9f7a88-f451-413e-b382-08a30df19217/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480032,480045] [2022-12-14 06:50:50,213 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_dd9f7a88-f451-413e-b382-08a30df19217/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480199,480212] [2022-12-14 06:50:50,213 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_dd9f7a88-f451-413e-b382-08a30df19217/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480367,480380] [2022-12-14 06:50:50,237 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:50:50,260 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:50:50,332 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 06:50:50,332 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 06:50:50,333 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 06:50:50,333 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 06:50:50,334 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 06:50:50,334 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 06:50:50,335 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 06:50:50,335 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-14 06:50:50,335 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 06:50:50,335 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 06:50:50,336 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 06:50:50,336 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-12-14 06:50:50,338 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 06:50:50,339 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 06:50:50,339 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 06:50:50,340 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 06:50:50,342 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 06:50:50,342 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 06:50:50,343 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 06:50:50,345 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 06:50:50,349 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-14 06:50:50,349 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 06:50:50,350 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 06:50:50,350 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 06:50:50,351 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 06:50:50,351 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,352 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-14 06:50:50,352 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_byte [2022-12-14 06:50:50,353 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-12-14 06:50:50,354 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_byte [2022-12-14 06:50:50,355 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_word [2022-12-14 06:50:50,356 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 06:50:50,361 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,361 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,361 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,362 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,362 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,362 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,362 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,362 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,362 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,363 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,363 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,363 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,364 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,364 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,364 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 06:50:50,364 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 06:50:50,365 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:50:50,367 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,368 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,370 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 06:50:50,370 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,371 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,371 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,371 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,372 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,372 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,372 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,373 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,373 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,373 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,373 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,373 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,376 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,376 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,376 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,378 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,381 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,381 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-12-14 06:50:50,382 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,385 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,385 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 06:50:50,385 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 06:50:50,391 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,396 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 06:50:50,400 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 06:50:50,401 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-14 06:50:50,402 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 06:50:50,402 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 06:50:50,403 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 06:50:50,403 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 06:50:50,434 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,436 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,438 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,439 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,439 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,439 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,440 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,440 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,440 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,440 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,468 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 06:50:50,468 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 06:50:50,479 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,481 WARN L623 FunctionHandler]: Unknown extern function strncpy [2022-12-14 06:50:50,482 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-12-14 06:50:50,491 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,492 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,492 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,493 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,493 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,496 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,497 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,515 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,515 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,515 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,516 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,516 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,517 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,518 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,521 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,521 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,521 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,521 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,522 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,522 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,522 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,522 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,522 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,522 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,524 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,525 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:50:50,526 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-12-14 06:50:50,526 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-12-14 06:50:50,527 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-12-14 06:50:50,527 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-12-14 06:50:50,527 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-12-14 06:50:50,528 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-12-14 06:50:50,528 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-12-14 06:50:50,528 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-12-14 06:50:50,529 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-12-14 06:50:50,529 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-12-14 06:50:50,529 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-12-14 06:50:50,530 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-12-14 06:50:50,530 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-12-14 06:50:50,531 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-12-14 06:50:50,531 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,532 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,532 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,532 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,532 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,532 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,533 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,533 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,533 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,534 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,534 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,534 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,534 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,534 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,535 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,535 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,535 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,536 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,536 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,537 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,537 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,537 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,537 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,538 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,538 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,538 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,539 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,539 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,540 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,541 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,542 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,542 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,542 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,542 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,542 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,543 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,543 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,543 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,544 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,544 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,544 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,546 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 06:50:50,547 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 06:50:50,547 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:50:50,547 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 06:50:50,548 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 06:50:50,549 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 06:50:50,556 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 06:50:50,556 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 06:50:50,556 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 06:50:50,557 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 06:50:50,557 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 06:50:50,557 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 06:50:50,557 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 06:50:50,558 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 06:50:50,558 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 06:50:50,558 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 06:50:50,559 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 06:50:50,559 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 06:50:50,559 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 06:50:50,561 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 06:50:50,561 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 06:50:50,566 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 06:50:50,567 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 06:50:50,571 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 06:50:50,571 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 06:50:50,573 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 06:50:50,573 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 06:50:50,574 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 06:50:50,574 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 06:50:50,574 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 06:50:50,575 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 06:50:50,575 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 06:50:50,575 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 06:50:50,575 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 06:50:50,575 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 06:50:50,576 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 06:50:50,576 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 06:50:50,576 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 06:50:50,577 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 06:50:50,577 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 06:50:50,578 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 06:50:50,579 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 06:50:50,579 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 06:50:50,591 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_dd9f7a88-f451-413e-b382-08a30df19217/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[479863,479876] [2022-12-14 06:50:50,591 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_dd9f7a88-f451-413e-b382-08a30df19217/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480032,480045] [2022-12-14 06:50:50,591 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_dd9f7a88-f451-413e-b382-08a30df19217/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480199,480212] [2022-12-14 06:50:50,592 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_dd9f7a88-f451-413e-b382-08a30df19217/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480367,480380] [2022-12-14 06:50:50,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:50:50,717 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:50:50,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:50 WrapperNode [2022-12-14 06:50:50,717 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:50:50,718 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:50:50,718 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:50:50,718 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:50:50,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:50" (1/1) ... [2022-12-14 06:50:50,804 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:50" (1/1) ... [2022-12-14 06:50:50,978 INFO L138 Inliner]: procedures = 544, calls = 4226, calls flagged for inlining = 248, calls inlined = 231, statements flattened = 8776 [2022-12-14 06:50:50,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:50:50,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:50:50,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:50:50,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:50:50,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:50" (1/1) ... [2022-12-14 06:50:50,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:50" (1/1) ... [2022-12-14 06:50:51,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:50" (1/1) ... [2022-12-14 06:50:51,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:50" (1/1) ... [2022-12-14 06:50:51,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:50" (1/1) ... [2022-12-14 06:50:51,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:50" (1/1) ... [2022-12-14 06:50:51,201 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:50" (1/1) ... [2022-12-14 06:50:51,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:50" (1/1) ... [2022-12-14 06:50:51,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:50:51,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:50:51,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:50:51,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:50:51,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:50" (1/1) ... [2022-12-14 06:50:51,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:50:51,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9f7a88-f451-413e-b382-08a30df19217/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:50:51,288 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9f7a88-f451-413e-b382-08a30df19217/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:50:51,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9f7a88-f451-413e-b382-08a30df19217/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:50:51,320 INFO L130 BoogieDeclarations]: Found specification of procedure disable_ast [2022-12-14 06:50:51,321 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_ast [2022-12-14 06:50:51,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 06:50:51,321 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 06:50:51,321 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-12-14 06:50:51,321 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-12-14 06:50:51,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 06:50:51,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 06:50:51,321 INFO L130 BoogieDeclarations]: Found specification of procedure type4_infoblock [2022-12-14 06:50:51,321 INFO L138 BoogieDeclarations]: Found implementation of procedure type4_infoblock [2022-12-14 06:50:51,321 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_put_cache [2022-12-14 06:50:51,321 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_put_cache [2022-12-14 06:50:51,321 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-12-14 06:50:51,321 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-12-14 06:50:51,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_de4x5_private [2022-12-14 06:50:51,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_de4x5_private [2022-12-14 06:50:51,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 06:50:51,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 06:50:51,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_de4x5_private [2022-12-14 06:50:51,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_de4x5_private [2022-12-14 06:50:51,321 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_mii [2022-12-14 06:50:51,321 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_mii [2022-12-14 06:50:51,321 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_switch_mac_port [2022-12-14 06:50:51,321 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_switch_mac_port [2022-12-14 06:50:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-12-14 06:50:51,322 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-12-14 06:50:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure srom_latch [2022-12-14 06:50:51,322 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_latch [2022-12-14 06:50:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2022-12-14 06:50:51,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2022-12-14 06:50:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-12-14 06:50:51,322 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-12-14 06:50:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure build_setup_frame [2022-12-14 06:50:51,322 INFO L138 BoogieDeclarations]: Found implementation of procedure build_setup_frame [2022-12-14 06:50:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure type2_infoblock [2022-12-14 06:50:51,322 INFO L138 BoogieDeclarations]: Found implementation of procedure type2_infoblock [2022-12-14 06:50:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure type0_infoblock [2022-12-14 06:50:51,322 INFO L138 BoogieDeclarations]: Found implementation of procedure type0_infoblock [2022-12-14 06:50:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-12-14 06:50:51,322 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-12-14 06:50:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure DevicePresent [2022-12-14 06:50:51,322 INFO L138 BoogieDeclarations]: Found implementation of procedure DevicePresent [2022-12-14 06:50:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-12-14 06:50:51,322 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-12-14 06:50:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 06:50:51,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 06:50:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure dc21143_infoleaf [2022-12-14 06:50:51,322 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21143_infoleaf [2022-12-14 06:50:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2022-12-14 06:50:51,323 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2022-12-14 06:50:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-12-14 06:50:51,323 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-12-14 06:50:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 06:50:51,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 06:50:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2022-12-14 06:50:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_sw_reset [2022-12-14 06:50:51,323 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_sw_reset [2022-12-14 06:50:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 06:50:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-12-14 06:50:51,323 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-12-14 06:50:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-12-14 06:50:51,323 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-12-14 06:50:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-12-14 06:50:51,323 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-12-14 06:50:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure is_spd_100 [2022-12-14 06:50:51,323 INFO L138 BoogieDeclarations]: Found implementation of procedure is_spd_100 [2022-12-14 06:50:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-12-14 06:50:51,323 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-12-14 06:50:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 06:50:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-12-14 06:50:51,323 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-12-14 06:50:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_mii [2022-12-14 06:50:51,324 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_mii [2022-12-14 06:50:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_rx_buffs [2022-12-14 06:50:51,324 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_rx_buffs [2022-12-14 06:50:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-12-14 06:50:51,324 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-12-14 06:50:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-12-14 06:50:51,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-12-14 06:50:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-12-14 06:50:51,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-12-14 06:50:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 06:50:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 06:50:51,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 06:50:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 06:50:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-12-14 06:50:51,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-12-14 06:50:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 06:50:51,324 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 06:50:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-12-14 06:50:51,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-12-14 06:50:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-12-14 06:50:51,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-12-14 06:50:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure ping_media [2022-12-14 06:50:51,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ping_media [2022-12-14 06:50:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-12-14 06:50:51,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-12-14 06:50:51,325 INFO L130 BoogieDeclarations]: Found specification of procedure srom_autoconf [2022-12-14 06:50:51,325 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_autoconf [2022-12-14 06:50:51,325 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-12-14 06:50:51,325 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-12-14 06:50:51,325 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-12-14 06:50:51,325 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-12-14 06:50:51,325 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_tx [2022-12-14 06:50:51,325 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_tx [2022-12-14 06:50:51,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 06:50:51,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 06:50:51,325 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-12-14 06:50:51,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-12-14 06:50:51,325 INFO L130 BoogieDeclarations]: Found specification of procedure srom_rd [2022-12-14 06:50:51,325 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_rd [2022-12-14 06:50:51,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 06:50:51,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-12-14 06:50:51,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-12-14 06:50:51,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-12-14 06:50:51,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-12-14 06:50:51,325 INFO L130 BoogieDeclarations]: Found specification of procedure SetMulticastFilter [2022-12-14 06:50:51,325 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMulticastFilter [2022-12-14 06:50:51,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:50:51,325 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ioctl [2022-12-14 06:50:51,326 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ioctl [2022-12-14 06:50:51,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 06:50:51,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 06:50:51,326 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-12-14 06:50:51,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-12-14 06:50:51,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 06:50:51,326 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 06:50:51,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 06:50:51,326 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_srom [2022-12-14 06:50:51,326 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_srom [2022-12-14 06:50:51,326 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-12-14 06:50:51,326 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-12-14 06:50:51,326 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-14 06:50:51,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-14 06:50:51,326 INFO L130 BoogieDeclarations]: Found specification of procedure mii_swap [2022-12-14 06:50:51,326 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_swap [2022-12-14 06:50:51,326 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_reset_phy [2022-12-14 06:50:51,326 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_reset_phy [2022-12-14 06:50:51,326 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_putb_cache [2022-12-14 06:50:51,326 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_putb_cache [2022-12-14 06:50:51,326 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-12-14 06:50:51,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-12-14 06:50:51,326 INFO L130 BoogieDeclarations]: Found specification of procedure dc21142_infoleaf [2022-12-14 06:50:51,326 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21142_infoleaf [2022-12-14 06:50:51,326 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 06:50:51,327 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 06:50:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_stats [2022-12-14 06:50:51,327 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_stats [2022-12-14 06:50:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-12-14 06:50:51,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-12-14 06:50:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-12-14 06:50:51,327 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-12-14 06:50:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init_connection [2022-12-14 06:50:51,327 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init_connection [2022-12-14 06:50:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wr [2022-12-14 06:50:51,327 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wr [2022-12-14 06:50:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:50:51,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:50:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_state [2022-12-14 06:50:51,327 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_state [2022-12-14 06:50:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-12-14 06:50:51,327 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-12-14 06:50:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure type3_infoblock [2022-12-14 06:50:51,327 INFO L138 BoogieDeclarations]: Found implementation of procedure type3_infoblock [2022-12-14 06:50:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 06:50:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 06:50:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 06:50:51,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 06:50:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure reset_init_sia [2022-12-14 06:50:51,328 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_init_sia [2022-12-14 06:50:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 06:50:51,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 06:50:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-12-14 06:50:51,328 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-12-14 06:50:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_alloc_rx_buff [2022-12-14 06:50:51,328 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_alloc_rx_buff [2022-12-14 06:50:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure test_for_100Mb [2022-12-14 06:50:51,328 INFO L138 BoogieDeclarations]: Found implementation of procedure test_for_100Mb [2022-12-14 06:50:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-12-14 06:50:51,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-12-14 06:50:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure type5_infoblock [2022-12-14 06:50:51,328 INFO L138 BoogieDeclarations]: Found implementation of procedure type5_infoblock [2022-12-14 06:50:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure load_packet [2022-12-14 06:50:51,328 INFO L138 BoogieDeclarations]: Found implementation of procedure load_packet [2022-12-14 06:50:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140m_autoconf [2022-12-14 06:50:51,328 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140m_autoconf [2022-12-14 06:50:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure is_100_up [2022-12-14 06:50:51,328 INFO L138 BoogieDeclarations]: Found implementation of procedure is_100_up [2022-12-14 06:50:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_open [2022-12-14 06:50:51,328 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_open [2022-12-14 06:50:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 06:50:51,328 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 06:50:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ta [2022-12-14 06:50:51,329 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ta [2022-12-14 06:50:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-12-14 06:50:51,329 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-12-14 06:50:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_autoconf [2022-12-14 06:50:51,329 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_autoconf [2022-12-14 06:50:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-12-14 06:50:51,329 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-12-14 06:50:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure test_mii_reg [2022-12-14 06:50:51,329 INFO L138 BoogieDeclarations]: Found implementation of procedure test_mii_reg [2022-12-14 06:50:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_cache_state [2022-12-14 06:50:51,329 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_cache_state [2022-12-14 06:50:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-12-14 06:50:51,329 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-12-14 06:50:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_pci_remove [2022-12-14 06:50:51,329 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_pci_remove [2022-12-14 06:50:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 06:50:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_media [2022-12-14 06:50:51,329 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_media [2022-12-14 06:50:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure autoconf_media [2022-12-14 06:50:51,329 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconf_media [2022-12-14 06:50:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_autoconf [2022-12-14 06:50:51,329 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_autoconf [2022-12-14 06:50:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure mii_rd [2022-12-14 06:50:51,329 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_rd [2022-12-14 06:50:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 06:50:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ast [2022-12-14 06:50:51,330 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ast [2022-12-14 06:50:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2022-12-14 06:50:51,330 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2022-12-14 06:50:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2022-12-14 06:50:51,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2022-12-14 06:50:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 06:50:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-12-14 06:50:51,330 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-12-14 06:50:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure is_10_up [2022-12-14 06:50:51,330 INFO L138 BoogieDeclarations]: Found implementation of procedure is_10_up [2022-12-14 06:50:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-12-14 06:50:51,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-12-14 06:50:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-12-14 06:50:51,330 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-12-14 06:50:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure is_anc_capable [2022-12-14 06:50:51,330 INFO L138 BoogieDeclarations]: Found implementation of procedure is_anc_capable [2022-12-14 06:50:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure type1_infoblock [2022-12-14 06:50:51,330 INFO L138 BoogieDeclarations]: Found implementation of procedure type1_infoblock [2022-12-14 06:50:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-12-14 06:50:51,330 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-12-14 06:50:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-12-14 06:50:51,330 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-12-14 06:50:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-12-14 06:50:51,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-12-14 06:50:51,331 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140_infoleaf [2022-12-14 06:50:51,331 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140_infoleaf [2022-12-14 06:50:51,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 06:50:51,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 06:50:51,331 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-12-14 06:50:51,331 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-12-14 06:50:51,331 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_queue_pkt [2022-12-14 06:50:51,331 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_queue_pkt [2022-12-14 06:50:51,331 INFO L130 BoogieDeclarations]: Found specification of procedure test_media [2022-12-14 06:50:51,331 INFO L138 BoogieDeclarations]: Found implementation of procedure test_media [2022-12-14 06:50:51,331 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buffs [2022-12-14 06:50:51,331 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buffs [2022-12-14 06:50:51,331 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2022-12-14 06:50:51,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2022-12-14 06:50:51,331 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-12-14 06:50:51,331 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-12-14 06:50:51,331 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-12-14 06:50:51,331 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-12-14 06:50:51,331 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-12-14 06:50:51,331 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-12-14 06:50:51,331 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init [2022-12-14 06:50:51,332 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init [2022-12-14 06:50:51,332 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-12-14 06:50:51,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-12-14 06:50:51,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_73 [2022-12-14 06:50:51,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_73 [2022-12-14 06:50:51,352 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_infoleaf [2022-12-14 06:50:51,352 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_infoleaf [2022-12-14 06:50:51,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 06:50:51,352 INFO L130 BoogieDeclarations]: Found specification of procedure srom_exec [2022-12-14 06:50:51,352 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_exec [2022-12-14 06:50:51,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 06:50:51,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 06:50:51,353 INFO L130 BoogieDeclarations]: Found specification of procedure gep_wr [2022-12-14 06:50:51,353 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_wr [2022-12-14 06:50:51,353 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-12-14 06:50:51,353 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-12-14 06:50:51,353 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_srom [2022-12-14 06:50:51,353 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_srom [2022-12-14 06:50:51,353 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-12-14 06:50:51,353 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-12-14 06:50:51,353 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_cache [2022-12-14 06:50:51,353 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_cache [2022-12-14 06:50:51,353 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_suspect_state [2022-12-14 06:50:51,353 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_suspect_state [2022-12-14 06:50:51,353 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_mii [2022-12-14 06:50:51,353 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_mii [2022-12-14 06:50:51,354 INFO L130 BoogieDeclarations]: Found specification of procedure compact_infoblock [2022-12-14 06:50:51,354 INFO L138 BoogieDeclarations]: Found implementation of procedure compact_infoblock [2022-12-14 06:50:51,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 06:50:51,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 06:50:51,354 INFO L130 BoogieDeclarations]: Found specification of procedure gep_rd [2022-12-14 06:50:51,354 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_rd [2022-12-14 06:50:51,354 INFO L130 BoogieDeclarations]: Found specification of procedure mii_address [2022-12-14 06:50:51,354 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_address [2022-12-14 06:50:51,354 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buff [2022-12-14 06:50:51,354 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buff [2022-12-14 06:50:51,354 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_setup_intr [2022-12-14 06:50:51,354 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_setup_intr [2022-12-14 06:50:51,354 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_save_skbs [2022-12-14 06:50:51,354 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_save_skbs [2022-12-14 06:50:51,354 INFO L130 BoogieDeclarations]: Found specification of procedure dc2114x_autoconf [2022-12-14 06:50:51,355 INFO L138 BoogieDeclarations]: Found implementation of procedure dc2114x_autoconf [2022-12-14 06:50:51,355 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-12-14 06:50:51,355 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-12-14 06:50:51,355 INFO L130 BoogieDeclarations]: Found specification of procedure srom_map_media [2022-12-14 06:50:51,355 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_map_media [2022-12-14 06:50:51,355 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_strncmp [2022-12-14 06:50:51,355 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_strncmp [2022-12-14 06:50:51,355 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-12-14 06:50:51,355 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-12-14 06:50:51,355 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_close [2022-12-14 06:50:51,355 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_close [2022-12-14 06:50:51,355 INFO L130 BoogieDeclarations]: Found specification of procedure yawn [2022-12-14 06:50:51,355 INFO L138 BoogieDeclarations]: Found implementation of procedure yawn [2022-12-14 06:50:51,355 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wdata [2022-12-14 06:50:51,355 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wdata [2022-12-14 06:50:51,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:50:51,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-12-14 06:50:51,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-12-14 06:50:51,356 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-12-14 06:50:52,168 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:50:52,171 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:50:52,506 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 06:51:07,277 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-12-14 06:51:07,493 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:51:09,889 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:51:09,889 INFO L300 CfgBuilder]: Removed 18 assume(true) statements. [2022-12-14 06:51:09,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:51:09 BoogieIcfgContainer [2022-12-14 06:51:09,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:51:09,896 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:51:09,896 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:51:09,898 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:51:09,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:50:46" (1/3) ... [2022-12-14 06:51:09,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c41a5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:51:09, skipping insertion in model container [2022-12-14 06:51:09,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:50" (2/3) ... [2022-12-14 06:51:09,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c41a5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:51:09, skipping insertion in model container [2022-12-14 06:51:09,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:51:09" (3/3) ... [2022-12-14 06:51:09,900 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2022-12-14 06:51:09,913 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:51:09,914 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-14 06:51:09,989 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:51:09,994 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;@32d9ade, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:51:09,994 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-14 06:51:10,003 INFO L276 IsEmpty]: Start isEmpty. Operand has 3050 states, 1915 states have (on average 1.348302872062663) internal successors, (2582), 1977 states have internal predecessors, (2582), 996 states have call successors, (996), 153 states have call predecessors, (996), 152 states have return successors, (989), 975 states have call predecessors, (989), 989 states have call successors, (989) [2022-12-14 06:51:10,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-12-14 06:51:10,015 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:51:10,016 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:51:10,016 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:51:10,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:51:10,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1823096810, now seen corresponding path program 1 times [2022-12-14 06:51:10,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:51:10,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757099725] [2022-12-14 06:51:10,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:51:10,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:51:10,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:51:10,718 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-12-14 06:51:10,718 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:51:10,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757099725] [2022-12-14 06:51:10,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757099725] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:51:10,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:51:10,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:51:10,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231695435] [2022-12-14 06:51:10,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:51:10,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:51:10,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:51:10,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:51:10,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:51:10,767 INFO L87 Difference]: Start difference. First operand has 3050 states, 1915 states have (on average 1.348302872062663) internal successors, (2582), 1977 states have internal predecessors, (2582), 996 states have call successors, (996), 153 states have call predecessors, (996), 152 states have return successors, (989), 975 states have call predecessors, (989), 989 states have call successors, (989) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-14 06:51:12,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:51:14,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:51:18,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:51:18,707 INFO L93 Difference]: Finished difference Result 8932 states and 13716 transitions. [2022-12-14 06:51:18,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:51:18,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 167 [2022-12-14 06:51:18,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:51:18,747 INFO L225 Difference]: With dead ends: 8932 [2022-12-14 06:51:18,747 INFO L226 Difference]: Without dead ends: 5899 [2022-12-14 06:51:18,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:51:18,775 INFO L413 NwaCegarLoop]: 4874 mSDtfsCounter, 4360 mSDsluCounter, 3906 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4360 SdHoareTripleChecker+Valid, 8780 SdHoareTripleChecker+Invalid, 1073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-12-14 06:51:18,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4360 Valid, 8780 Invalid, 1073 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1069 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-12-14 06:51:18,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5899 states. [2022-12-14 06:51:19,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5899 to 5895. [2022-12-14 06:51:19,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5895 states, 3686 states have (on average 1.3464460119370592) internal successors, (4963), 3778 states have internal predecessors, (4963), 1905 states have call successors, (1905), 302 states have call predecessors, (1905), 301 states have return successors, (1902), 1874 states have call predecessors, (1902), 1902 states have call successors, (1902) [2022-12-14 06:51:19,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5895 states to 5895 states and 8770 transitions. [2022-12-14 06:51:19,101 INFO L78 Accepts]: Start accepts. Automaton has 5895 states and 8770 transitions. Word has length 167 [2022-12-14 06:51:19,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:51:19,102 INFO L495 AbstractCegarLoop]: Abstraction has 5895 states and 8770 transitions. [2022-12-14 06:51:19,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-14 06:51:19,102 INFO L276 IsEmpty]: Start isEmpty. Operand 5895 states and 8770 transitions. [2022-12-14 06:51:19,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-12-14 06:51:19,108 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:51:19,108 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:51:19,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:51:19,109 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:51:19,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:51:19,109 INFO L85 PathProgramCache]: Analyzing trace with hash 799029044, now seen corresponding path program 1 times [2022-12-14 06:51:19,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:51:19,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208333349] [2022-12-14 06:51:19,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:51:19,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:51:19,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:51:19,427 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-12-14 06:51:19,427 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:51:19,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208333349] [2022-12-14 06:51:19,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208333349] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:51:19,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:51:19,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:51:19,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705569723] [2022-12-14 06:51:19,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:51:19,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:51:19,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:51:19,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:51:19,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:51:19,431 INFO L87 Difference]: Start difference. First operand 5895 states and 8770 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-12-14 06:51:20,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:51:22,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:51:26,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:51:26,792 INFO L93 Difference]: Finished difference Result 17335 states and 26106 transitions. [2022-12-14 06:51:26,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:51:26,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 173 [2022-12-14 06:51:26,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:51:26,847 INFO L225 Difference]: With dead ends: 17335 [2022-12-14 06:51:26,847 INFO L226 Difference]: Without dead ends: 11471 [2022-12-14 06:51:26,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:51:26,879 INFO L413 NwaCegarLoop]: 4937 mSDtfsCounter, 4287 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4287 SdHoareTripleChecker+Valid, 8894 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-12-14 06:51:26,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4287 Valid, 8894 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-12-14 06:51:26,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11471 states. [2022-12-14 06:51:27,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11471 to 11441. [2022-12-14 06:51:27,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11441 states, 7159 states have (on average 1.3476742561810309) internal successors, (9648), 7347 states have internal predecessors, (9648), 3684 states have call successors, (3684), 600 states have call predecessors, (3684), 595 states have return successors, (4005), 3613 states have call predecessors, (4005), 3681 states have call successors, (4005) [2022-12-14 06:51:27,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11441 states to 11441 states and 17337 transitions. [2022-12-14 06:51:27,389 INFO L78 Accepts]: Start accepts. Automaton has 11441 states and 17337 transitions. Word has length 173 [2022-12-14 06:51:27,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:51:27,390 INFO L495 AbstractCegarLoop]: Abstraction has 11441 states and 17337 transitions. [2022-12-14 06:51:27,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-12-14 06:51:27,391 INFO L276 IsEmpty]: Start isEmpty. Operand 11441 states and 17337 transitions. [2022-12-14 06:51:27,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-12-14 06:51:27,398 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:51:27,398 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:51:27,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 06:51:27,398 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:51:27,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:51:27,399 INFO L85 PathProgramCache]: Analyzing trace with hash 24742634, now seen corresponding path program 1 times [2022-12-14 06:51:27,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:51:27,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323047079] [2022-12-14 06:51:27,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:51:27,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:51:27,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:51:27,627 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-12-14 06:51:27,627 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:51:27,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323047079] [2022-12-14 06:51:27,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323047079] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:51:27,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:51:27,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:51:27,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004405395] [2022-12-14 06:51:27,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:51:27,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:51:27,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:51:27,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:51:27,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:51:27,630 INFO L87 Difference]: Start difference. First operand 11441 states and 17337 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-14 06:51:29,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:51:33,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:51:33,579 INFO L93 Difference]: Finished difference Result 34153 states and 51755 transitions. [2022-12-14 06:51:33,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:51:33,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 181 [2022-12-14 06:51:33,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:51:33,670 INFO L225 Difference]: With dead ends: 34153 [2022-12-14 06:51:33,670 INFO L226 Difference]: Without dead ends: 22743 [2022-12-14 06:51:33,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:51:33,712 INFO L413 NwaCegarLoop]: 4866 mSDtfsCounter, 4341 mSDsluCounter, 3893 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4341 SdHoareTripleChecker+Valid, 8759 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-12-14 06:51:33,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4341 Valid, 8759 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1086 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-12-14 06:51:33,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22743 states. [2022-12-14 06:51:34,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22743 to 22717. [2022-12-14 06:51:34,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22717 states, 14227 states have (on average 1.3464539256343573) internal successors, (19156), 14601 states have internal predecessors, (19156), 7298 states have call successors, (7298), 1198 states have call predecessors, (7298), 1189 states have return successors, (7955), 7157 states have call predecessors, (7955), 7295 states have call successors, (7955) [2022-12-14 06:51:34,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22717 states to 22717 states and 34409 transitions. [2022-12-14 06:51:34,718 INFO L78 Accepts]: Start accepts. Automaton has 22717 states and 34409 transitions. Word has length 181 [2022-12-14 06:51:34,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:51:34,719 INFO L495 AbstractCegarLoop]: Abstraction has 22717 states and 34409 transitions. [2022-12-14 06:51:34,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-14 06:51:34,720 INFO L276 IsEmpty]: Start isEmpty. Operand 22717 states and 34409 transitions. [2022-12-14 06:51:34,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-12-14 06:51:34,726 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:51:34,726 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:51:34,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 06:51:34,727 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:51:34,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:51:34,727 INFO L85 PathProgramCache]: Analyzing trace with hash -2055617067, now seen corresponding path program 1 times [2022-12-14 06:51:34,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:51:34,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611492338] [2022-12-14 06:51:34,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:51:34,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:51:34,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:51:35,000 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-12-14 06:51:35,000 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:51:35,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611492338] [2022-12-14 06:51:35,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611492338] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:51:35,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:51:35,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:51:35,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045770651] [2022-12-14 06:51:35,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:51:35,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:51:35,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:51:35,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:51:35,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:51:35,003 INFO L87 Difference]: Start difference. First operand 22717 states and 34409 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-14 06:51:37,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:51:41,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:51:41,614 INFO L93 Difference]: Finished difference Result 67873 states and 102799 transitions. [2022-12-14 06:51:41,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:51:41,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 183 [2022-12-14 06:51:41,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:51:41,809 INFO L225 Difference]: With dead ends: 67873 [2022-12-14 06:51:41,810 INFO L226 Difference]: Without dead ends: 45187 [2022-12-14 06:51:41,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:51:41,970 INFO L413 NwaCegarLoop]: 4865 mSDtfsCounter, 4339 mSDsluCounter, 3893 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4339 SdHoareTripleChecker+Valid, 8758 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-12-14 06:51:41,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4339 Valid, 8758 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1086 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-12-14 06:51:41,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45187 states. [2022-12-14 06:51:43,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45187 to 45161. [2022-12-14 06:51:43,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45161 states, 28295 states have (on average 1.3449726100017672) internal successors, (38056), 29041 states have internal predecessors, (38056), 14486 states have call successors, (14486), 2394 states have call predecessors, (14486), 2377 states have return successors, (15819), 14205 states have call predecessors, (15819), 14483 states have call successors, (15819) [2022-12-14 06:51:43,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45161 states to 45161 states and 68361 transitions. [2022-12-14 06:51:43,573 INFO L78 Accepts]: Start accepts. Automaton has 45161 states and 68361 transitions. Word has length 183 [2022-12-14 06:51:43,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:51:43,573 INFO L495 AbstractCegarLoop]: Abstraction has 45161 states and 68361 transitions. [2022-12-14 06:51:43,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-14 06:51:43,574 INFO L276 IsEmpty]: Start isEmpty. Operand 45161 states and 68361 transitions. [2022-12-14 06:51:43,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-12-14 06:51:43,576 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:51:43,576 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:51:43,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 06:51:43,576 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:51:43,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:51:43,577 INFO L85 PathProgramCache]: Analyzing trace with hash 967405135, now seen corresponding path program 1 times [2022-12-14 06:51:43,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:51:43,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343639168] [2022-12-14 06:51:43,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:51:43,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:51:43,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:51:43,753 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-12-14 06:51:43,753 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:51:43,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343639168] [2022-12-14 06:51:43,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343639168] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:51:43,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:51:43,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:51:43,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954922387] [2022-12-14 06:51:43,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:51:43,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:51:43,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:51:43,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:51:43,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:51:43,755 INFO L87 Difference]: Start difference. First operand 45161 states and 68361 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-14 06:51:45,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:51:47,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:51:53,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:51:53,240 INFO L93 Difference]: Finished difference Result 134989 states and 204319 transitions. [2022-12-14 06:51:53,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:51:53,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 182 [2022-12-14 06:51:53,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:51:53,646 INFO L225 Difference]: With dead ends: 134989 [2022-12-14 06:51:53,647 INFO L226 Difference]: Without dead ends: 89859 [2022-12-14 06:51:53,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:51:53,820 INFO L413 NwaCegarLoop]: 4865 mSDtfsCounter, 4340 mSDsluCounter, 3893 mSDsCounter, 0 mSdLazyCounter, 1087 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4340 SdHoareTripleChecker+Valid, 8758 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1087 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:51:53,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4340 Valid, 8758 Invalid, 1095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1087 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-12-14 06:51:53,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89859 states. [2022-12-14 06:51:56,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89859 to 89833. [2022-12-14 06:51:56,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89833 states, 56295 states have (on average 1.3433519850786038) internal successors, (75624), 57785 states have internal predecessors, (75624), 28782 states have call successors, (28782), 4786 states have call predecessors, (28782), 4753 states have return successors, (31483), 28221 states have call predecessors, (31483), 28779 states have call successors, (31483) [2022-12-14 06:51:57,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89833 states to 89833 states and 135889 transitions. [2022-12-14 06:51:57,374 INFO L78 Accepts]: Start accepts. Automaton has 89833 states and 135889 transitions. Word has length 182 [2022-12-14 06:51:57,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:51:57,375 INFO L495 AbstractCegarLoop]: Abstraction has 89833 states and 135889 transitions. [2022-12-14 06:51:57,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-14 06:51:57,375 INFO L276 IsEmpty]: Start isEmpty. Operand 89833 states and 135889 transitions. [2022-12-14 06:51:57,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-12-14 06:51:57,378 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:51:57,378 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:51:57,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 06:51:57,378 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:51:57,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:51:57,378 INFO L85 PathProgramCache]: Analyzing trace with hash -938457324, now seen corresponding path program 1 times [2022-12-14 06:51:57,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:51:57,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498193139] [2022-12-14 06:51:57,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:51:57,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:51:57,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:51:57,683 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-12-14 06:51:57,683 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:51:57,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498193139] [2022-12-14 06:51:57,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498193139] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:51:57,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:51:57,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:51:57,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969998395] [2022-12-14 06:51:57,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:51:57,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:51:57,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:51:57,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:51:57,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:51:57,685 INFO L87 Difference]: Start difference. First operand 89833 states and 135889 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-14 06:51:59,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:52:01,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:52:02,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:52:11,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:52:11,134 INFO L93 Difference]: Finished difference Result 267757 states and 405019 transitions. [2022-12-14 06:52:11,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:52:11,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 184 [2022-12-14 06:52:11,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:52:11,988 INFO L225 Difference]: With dead ends: 267757 [2022-12-14 06:52:11,988 INFO L226 Difference]: Without dead ends: 177955 [2022-12-14 06:52:12,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:52:12,345 INFO L413 NwaCegarLoop]: 4865 mSDtfsCounter, 4338 mSDsluCounter, 3893 mSDsCounter, 0 mSdLazyCounter, 1087 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4338 SdHoareTripleChecker+Valid, 8758 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1087 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:52:12,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4338 Valid, 8758 Invalid, 1095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1087 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2022-12-14 06:52:12,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177955 states. [2022-12-14 06:52:18,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177955 to 177881. [2022-12-14 06:52:18,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177881 states, 111491 states have (on average 1.341812343597241) internal successors, (149600), 114449 states have internal predecessors, (149600), 56936 states have call successors, (56936), 9518 states have call predecessors, (56936), 9451 states have return successors, (62397), 55819 states have call predecessors, (62397), 56933 states have call successors, (62397) [2022-12-14 06:52:19,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177881 states to 177881 states and 268933 transitions. [2022-12-14 06:52:19,915 INFO L78 Accepts]: Start accepts. Automaton has 177881 states and 268933 transitions. Word has length 184 [2022-12-14 06:52:19,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:52:19,916 INFO L495 AbstractCegarLoop]: Abstraction has 177881 states and 268933 transitions. [2022-12-14 06:52:19,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-14 06:52:19,916 INFO L276 IsEmpty]: Start isEmpty. Operand 177881 states and 268933 transitions. [2022-12-14 06:52:19,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-12-14 06:52:19,922 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:52:19,922 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:52:19,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 06:52:19,922 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:52:19,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:52:19,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1324741643, now seen corresponding path program 1 times [2022-12-14 06:52:19,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:52:19,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344207427] [2022-12-14 06:52:19,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:52:19,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:52:20,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:52:20,338 INFO L134 CoverageAnalysis]: Checked inductivity of 995 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 995 trivial. 0 not checked. [2022-12-14 06:52:20,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:52:20,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344207427] [2022-12-14 06:52:20,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344207427] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:52:20,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:52:20,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:52:20,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055903146] [2022-12-14 06:52:20,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:52:20,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:52:20,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:52:20,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:52:20,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:52:20,340 INFO L87 Difference]: Start difference. First operand 177881 states and 268933 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-14 06:52:22,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:52:24,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:52:25,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:52:34,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:52:34,560 INFO L93 Difference]: Finished difference Result 177887 states and 268938 transitions. [2022-12-14 06:52:34,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:52:34,561 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 205 [2022-12-14 06:52:34,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:52:35,296 INFO L225 Difference]: With dead ends: 177887 [2022-12-14 06:52:35,296 INFO L226 Difference]: Without dead ends: 177885 [2022-12-14 06:52:35,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:52:35,382 INFO L413 NwaCegarLoop]: 3909 mSDtfsCounter, 4388 mSDsluCounter, 7804 mSDsCounter, 0 mSdLazyCounter, 1615 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4400 SdHoareTripleChecker+Valid, 11713 SdHoareTripleChecker+Invalid, 1617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1615 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-12-14 06:52:35,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4400 Valid, 11713 Invalid, 1617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1615 Invalid, 1 Unknown, 0 Unchecked, 9.4s Time] [2022-12-14 06:52:35,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177885 states. [2022-12-14 06:52:42,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177885 to 177885. [2022-12-14 06:52:42,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177885 states, 111494 states have (on average 1.3418031463576516) internal successors, (149603), 114452 states have internal predecessors, (149603), 56936 states have call successors, (56936), 9519 states have call predecessors, (56936), 9452 states have return successors, (62397), 55819 states have call predecessors, (62397), 56933 states have call successors, (62397) [2022-12-14 06:52:43,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177885 states to 177885 states and 268936 transitions. [2022-12-14 06:52:43,160 INFO L78 Accepts]: Start accepts. Automaton has 177885 states and 268936 transitions. Word has length 205 [2022-12-14 06:52:43,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:52:43,160 INFO L495 AbstractCegarLoop]: Abstraction has 177885 states and 268936 transitions. [2022-12-14 06:52:43,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-14 06:52:43,161 INFO L276 IsEmpty]: Start isEmpty. Operand 177885 states and 268936 transitions. [2022-12-14 06:52:43,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-12-14 06:52:43,167 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:52:43,167 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:52:43,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 06:52:43,168 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:52:43,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:52:43,168 INFO L85 PathProgramCache]: Analyzing trace with hash -88110043, now seen corresponding path program 1 times [2022-12-14 06:52:43,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:52:43,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346036518] [2022-12-14 06:52:43,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:52:43,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:52:43,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:52:43,553 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 995 trivial. 0 not checked. [2022-12-14 06:52:43,553 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:52:43,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346036518] [2022-12-14 06:52:43,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346036518] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:52:43,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:52:43,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:52:43,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197266221] [2022-12-14 06:52:43,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:52:43,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:52:43,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:52:43,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:52:43,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:52:43,555 INFO L87 Difference]: Start difference. First operand 177885 states and 268936 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 06:52:45,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:52:54,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:52:54,955 INFO L93 Difference]: Finished difference Result 177891 states and 268941 transitions. [2022-12-14 06:52:54,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:52:54,957 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 210 [2022-12-14 06:52:54,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:52:55,736 INFO L225 Difference]: With dead ends: 177891 [2022-12-14 06:52:55,736 INFO L226 Difference]: Without dead ends: 177889 [2022-12-14 06:52:55,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:52:55,806 INFO L413 NwaCegarLoop]: 3912 mSDtfsCounter, 4383 mSDsluCounter, 7804 mSDsCounter, 0 mSdLazyCounter, 1613 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4394 SdHoareTripleChecker+Valid, 11716 SdHoareTripleChecker+Invalid, 1615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1613 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:52:55,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4394 Valid, 11716 Invalid, 1615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1613 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-12-14 06:52:55,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177889 states. [2022-12-14 06:53:03,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177889 to 177889. [2022-12-14 06:53:03,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177889 states, 111497 states have (on average 1.341793949612994) internal successors, (149606), 114455 states have internal predecessors, (149606), 56936 states have call successors, (56936), 9520 states have call predecessors, (56936), 9453 states have return successors, (62397), 55819 states have call predecessors, (62397), 56933 states have call successors, (62397) [2022-12-14 06:53:04,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177889 states to 177889 states and 268939 transitions. [2022-12-14 06:53:04,607 INFO L78 Accepts]: Start accepts. Automaton has 177889 states and 268939 transitions. Word has length 210 [2022-12-14 06:53:04,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:53:04,608 INFO L495 AbstractCegarLoop]: Abstraction has 177889 states and 268939 transitions. [2022-12-14 06:53:04,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 06:53:04,608 INFO L276 IsEmpty]: Start isEmpty. Operand 177889 states and 268939 transitions. [2022-12-14 06:53:04,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-12-14 06:53:04,614 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:53:04,614 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 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] [2022-12-14 06:53:04,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 06:53:04,615 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:53:04,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:53:04,615 INFO L85 PathProgramCache]: Analyzing trace with hash 569961574, now seen corresponding path program 1 times [2022-12-14 06:53:04,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:53:04,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846123665] [2022-12-14 06:53:04,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:53:04,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:53:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:53:04,926 INFO L134 CoverageAnalysis]: Checked inductivity of 878 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 878 trivial. 0 not checked. [2022-12-14 06:53:04,927 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:53:04,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846123665] [2022-12-14 06:53:04,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846123665] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:53:04,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:53:04,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:53:04,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601848874] [2022-12-14 06:53:04,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:53:04,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:53:04,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:53:04,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:53:04,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:53:04,929 INFO L87 Difference]: Start difference. First operand 177889 states and 268939 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, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-12-14 06:53:06,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:53:17,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:53:17,892 INFO L93 Difference]: Finished difference Result 332859 states and 502561 transitions. [2022-12-14 06:53:17,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:53:17,893 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, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 211 [2022-12-14 06:53:17,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:53:18,538 INFO L225 Difference]: With dead ends: 332859 [2022-12-14 06:53:18,538 INFO L226 Difference]: Without dead ends: 155001 [2022-12-14 06:53:19,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:53:19,258 INFO L413 NwaCegarLoop]: 6766 mSDtfsCounter, 3534 mSDsluCounter, 3878 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3534 SdHoareTripleChecker+Valid, 10644 SdHoareTripleChecker+Invalid, 1483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:53:19,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3534 Valid, 10644 Invalid, 1483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1466 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-12-14 06:53:19,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155001 states. [2022-12-14 06:53:25,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155001 to 154936. [2022-12-14 06:53:25,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154936 states, 96811 states have (on average 1.334145913171024) internal successors, (129160), 99430 states have internal predecessors, (129160), 49602 states have call successors, (49602), 8568 states have call predecessors, (49602), 8520 states have return successors, (54339), 48557 states have call predecessors, (54339), 49599 states have call successors, (54339) [2022-12-14 06:53:26,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154936 states to 154936 states and 233101 transitions. [2022-12-14 06:53:26,559 INFO L78 Accepts]: Start accepts. Automaton has 154936 states and 233101 transitions. Word has length 211 [2022-12-14 06:53:26,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:53:26,560 INFO L495 AbstractCegarLoop]: Abstraction has 154936 states and 233101 transitions. [2022-12-14 06:53:26,560 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, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-12-14 06:53:26,560 INFO L276 IsEmpty]: Start isEmpty. Operand 154936 states and 233101 transitions. [2022-12-14 06:53:26,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-12-14 06:53:26,562 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:53:26,562 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:53:26,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 06:53:26,562 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:53:26,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:53:26,562 INFO L85 PathProgramCache]: Analyzing trace with hash 947896757, now seen corresponding path program 1 times [2022-12-14 06:53:26,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:53:26,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098814506] [2022-12-14 06:53:26,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:53:26,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:53:26,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:53:27,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1003 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 999 trivial. 0 not checked. [2022-12-14 06:53:27,084 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:53:27,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098814506] [2022-12-14 06:53:27,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098814506] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:53:27,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:53:27,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:53:27,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402436265] [2022-12-14 06:53:27,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:53:27,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:53:27,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:53:27,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:53:27,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:53:27,086 INFO L87 Difference]: Start difference. First operand 154936 states and 233101 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 06:53:29,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:53:33,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:53:39,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:53:39,042 INFO L93 Difference]: Finished difference Result 154942 states and 233106 transitions. [2022-12-14 06:53:39,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:53:39,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 215 [2022-12-14 06:53:39,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:53:39,682 INFO L225 Difference]: With dead ends: 154942 [2022-12-14 06:53:39,683 INFO L226 Difference]: Without dead ends: 154940 [2022-12-14 06:53:39,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:53:39,742 INFO L413 NwaCegarLoop]: 3912 mSDtfsCounter, 4383 mSDsluCounter, 7804 mSDsCounter, 0 mSdLazyCounter, 1613 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4393 SdHoareTripleChecker+Valid, 11716 SdHoareTripleChecker+Invalid, 1615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1613 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:53:39,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4393 Valid, 11716 Invalid, 1615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1613 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-12-14 06:53:39,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154940 states. [2022-12-14 06:53:46,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154940 to 154940. [2022-12-14 06:53:46,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154940 states, 96814 states have (on average 1.3341355589067696) internal successors, (129163), 99433 states have internal predecessors, (129163), 49602 states have call successors, (49602), 8569 states have call predecessors, (49602), 8521 states have return successors, (54339), 48557 states have call predecessors, (54339), 49599 states have call successors, (54339) [2022-12-14 06:53:47,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154940 states to 154940 states and 233104 transitions. [2022-12-14 06:53:47,769 INFO L78 Accepts]: Start accepts. Automaton has 154940 states and 233104 transitions. Word has length 215 [2022-12-14 06:53:47,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:53:47,770 INFO L495 AbstractCegarLoop]: Abstraction has 154940 states and 233104 transitions. [2022-12-14 06:53:47,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 06:53:47,770 INFO L276 IsEmpty]: Start isEmpty. Operand 154940 states and 233104 transitions. [2022-12-14 06:53:47,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-12-14 06:53:47,772 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:53:47,772 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:53:47,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 06:53:47,772 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)] === [2022-12-14 06:53:47,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:53:47,773 INFO L85 PathProgramCache]: Analyzing trace with hash -110125595, now seen corresponding path program 1 times [2022-12-14 06:53:47,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:53:47,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047774699] [2022-12-14 06:53:47,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:53:47,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:53:47,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:53:48,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1013 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1007 trivial. 0 not checked. [2022-12-14 06:53:48,133 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:53:48,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047774699] [2022-12-14 06:53:48,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047774699] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:53:48,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:53:48,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:53:48,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510247612] [2022-12-14 06:53:48,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:53:48,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:53:48,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:53:48,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:53:48,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:53:48,135 INFO L87 Difference]: Start difference. First operand 154940 states and 233104 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 06:53:50,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:54:00,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:54:00,407 INFO L93 Difference]: Finished difference Result 154946 states and 233109 transitions. [2022-12-14 06:54:00,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:54:00,408 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 220 [2022-12-14 06:54:00,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:54:01,000 INFO L225 Difference]: With dead ends: 154946 [2022-12-14 06:54:01,000 INFO L226 Difference]: Without dead ends: 154944 [2022-12-14 06:54:01,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:54:01,068 INFO L413 NwaCegarLoop]: 3912 mSDtfsCounter, 4383 mSDsluCounter, 7804 mSDsCounter, 0 mSdLazyCounter, 1613 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4392 SdHoareTripleChecker+Valid, 11716 SdHoareTripleChecker+Invalid, 1615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1613 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-12-14 06:54:01,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4392 Valid, 11716 Invalid, 1615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1613 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-12-14 06:54:01,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154944 states. [2022-12-14 06:54:08,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154944 to 154944. [2022-12-14 06:54:08,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154944 states, 96817 states have (on average 1.3341252052841959) internal successors, (129166), 99436 states have internal predecessors, (129166), 49602 states have call successors, (49602), 8570 states have call predecessors, (49602), 8522 states have return successors, (54339), 48557 states have call predecessors, (54339), 49599 states have call successors, (54339) [2022-12-14 06:54:09,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154944 states to 154944 states and 233107 transitions. [2022-12-14 06:54:09,162 INFO L78 Accepts]: Start accepts. Automaton has 154944 states and 233107 transitions. Word has length 220 [2022-12-14 06:54:09,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:54:09,163 INFO L495 AbstractCegarLoop]: Abstraction has 154944 states and 233107 transitions. [2022-12-14 06:54:09,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 06:54:09,163 INFO L276 IsEmpty]: Start isEmpty. Operand 154944 states and 233107 transitions. [2022-12-14 06:54:09,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-12-14 06:54:09,165 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:54:09,165 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 6, 6, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:54:09,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 06:54:09,165 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:54:09,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:54:09,165 INFO L85 PathProgramCache]: Analyzing trace with hash -907999960, now seen corresponding path program 1 times [2022-12-14 06:54:09,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:54:09,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578312324] [2022-12-14 06:54:09,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:54:09,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:54:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:54:09,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1045 trivial. 0 not checked. [2022-12-14 06:54:09,505 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:54:09,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578312324] [2022-12-14 06:54:09,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578312324] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:54:09,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:54:09,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:54:09,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070277321] [2022-12-14 06:54:09,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:54:09,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:54:09,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:54:09,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:54:09,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:54:09,507 INFO L87 Difference]: Start difference. First operand 154944 states and 233107 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 06:54:11,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:54:21,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:54:21,832 INFO L93 Difference]: Finished difference Result 154950 states and 233112 transitions. [2022-12-14 06:54:21,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:54:21,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 234 [2022-12-14 06:54:21,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:54:22,417 INFO L225 Difference]: With dead ends: 154950 [2022-12-14 06:54:22,417 INFO L226 Difference]: Without dead ends: 154948 [2022-12-14 06:54:22,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:54:22,480 INFO L413 NwaCegarLoop]: 3912 mSDtfsCounter, 4379 mSDsluCounter, 7804 mSDsCounter, 0 mSdLazyCounter, 1613 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4387 SdHoareTripleChecker+Valid, 11716 SdHoareTripleChecker+Invalid, 1615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1613 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-12-14 06:54:22,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4387 Valid, 11716 Invalid, 1615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1613 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-12-14 06:54:22,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154948 states. [2022-12-14 06:54:30,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154948 to 154948. [2022-12-14 06:54:30,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154948 states, 96820 states have (on average 1.3341148523032431) internal successors, (129169), 99439 states have internal predecessors, (129169), 49602 states have call successors, (49602), 8571 states have call predecessors, (49602), 8523 states have return successors, (54339), 48557 states have call predecessors, (54339), 49599 states have call successors, (54339) [2022-12-14 06:54:31,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154948 states to 154948 states and 233110 transitions. [2022-12-14 06:54:31,138 INFO L78 Accepts]: Start accepts. Automaton has 154948 states and 233110 transitions. Word has length 234 [2022-12-14 06:54:31,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:54:31,139 INFO L495 AbstractCegarLoop]: Abstraction has 154948 states and 233110 transitions. [2022-12-14 06:54:31,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 06:54:31,139 INFO L276 IsEmpty]: Start isEmpty. Operand 154948 states and 233110 transitions. [2022-12-14 06:54:31,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-12-14 06:54:31,141 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:54:31,141 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:54:31,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 06:54:31,142 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:54:31,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:54:31,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1509306277, now seen corresponding path program 1 times [2022-12-14 06:54:31,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:54:31,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449700820] [2022-12-14 06:54:31,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:54:31,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:54:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:54:31,562 INFO L134 CoverageAnalysis]: Checked inductivity of 1045 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2022-12-14 06:54:31,562 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:54:31,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449700820] [2022-12-14 06:54:31,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449700820] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:54:31,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:54:31,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:54:31,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970941885] [2022-12-14 06:54:31,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:54:31,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:54:31,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:54:31,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:54:31,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:54:31,564 INFO L87 Difference]: Start difference. First operand 154948 states and 233110 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 06:54:33,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:54:34,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:54:36,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:54:47,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:54:47,288 INFO L93 Difference]: Finished difference Result 154954 states and 233115 transitions. [2022-12-14 06:54:47,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:54:47,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 230 [2022-12-14 06:54:47,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:54:47,882 INFO L225 Difference]: With dead ends: 154954 [2022-12-14 06:54:47,882 INFO L226 Difference]: Without dead ends: 154952 [2022-12-14 06:54:47,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:54:47,947 INFO L413 NwaCegarLoop]: 3912 mSDtfsCounter, 4383 mSDsluCounter, 7804 mSDsCounter, 0 mSdLazyCounter, 1615 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4390 SdHoareTripleChecker+Valid, 11716 SdHoareTripleChecker+Invalid, 1617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1615 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:54:47,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4390 Valid, 11716 Invalid, 1617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1615 Invalid, 1 Unknown, 0 Unchecked, 9.3s Time] [2022-12-14 06:54:48,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154952 states. [2022-12-14 06:54:56,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154952 to 154952. [2022-12-14 06:54:56,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154952 states, 96823 states have (on average 1.3341044999638516) internal successors, (129172), 99442 states have internal predecessors, (129172), 49602 states have call successors, (49602), 8572 states have call predecessors, (49602), 8524 states have return successors, (54339), 48557 states have call predecessors, (54339), 49599 states have call successors, (54339) [2022-12-14 06:54:57,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154952 states to 154952 states and 233113 transitions. [2022-12-14 06:54:57,528 INFO L78 Accepts]: Start accepts. Automaton has 154952 states and 233113 transitions. Word has length 230 [2022-12-14 06:54:57,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:54:57,528 INFO L495 AbstractCegarLoop]: Abstraction has 154952 states and 233113 transitions. [2022-12-14 06:54:57,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 06:54:57,529 INFO L276 IsEmpty]: Start isEmpty. Operand 154952 states and 233113 transitions. [2022-12-14 06:54:57,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-12-14 06:54:57,531 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:54:57,531 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 7, 6, 6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:54:57,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 06:54:57,531 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:54:57,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:54:57,532 INFO L85 PathProgramCache]: Analyzing trace with hash 505837352, now seen corresponding path program 1 times [2022-12-14 06:54:57,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:54:57,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78901018] [2022-12-14 06:54:57,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:54:57,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:54:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:54:57,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1093 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1081 trivial. 0 not checked. [2022-12-14 06:54:57,959 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:54:57,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78901018] [2022-12-14 06:54:57,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78901018] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:54:57,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:54:57,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:54:57,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051918786] [2022-12-14 06:54:57,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:54:57,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:54:57,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:54:57,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:54:57,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:54:57,960 INFO L87 Difference]: Start difference. First operand 154952 states and 233113 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 06:54:59,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:55:11,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:55:11,078 INFO L93 Difference]: Finished difference Result 154958 states and 233118 transitions. [2022-12-14 06:55:11,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:55:11,079 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 244 [2022-12-14 06:55:11,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:55:11,668 INFO L225 Difference]: With dead ends: 154958 [2022-12-14 06:55:11,668 INFO L226 Difference]: Without dead ends: 154956 [2022-12-14 06:55:11,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:55:11,727 INFO L413 NwaCegarLoop]: 3912 mSDtfsCounter, 4379 mSDsluCounter, 7804 mSDsCounter, 0 mSdLazyCounter, 1613 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4385 SdHoareTripleChecker+Valid, 11716 SdHoareTripleChecker+Invalid, 1615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1613 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:55:11,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4385 Valid, 11716 Invalid, 1615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1613 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-12-14 06:55:11,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154956 states. [2022-12-14 06:55:20,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154956 to 154956. [2022-12-14 06:55:20,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154956 states, 96826 states have (on average 1.3340941482659616) internal successors, (129175), 99445 states have internal predecessors, (129175), 49602 states have call successors, (49602), 8573 states have call predecessors, (49602), 8525 states have return successors, (54339), 48557 states have call predecessors, (54339), 49599 states have call successors, (54339) [2022-12-14 06:55:21,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154956 states to 154956 states and 233116 transitions. [2022-12-14 06:55:21,323 INFO L78 Accepts]: Start accepts. Automaton has 154956 states and 233116 transitions. Word has length 244 [2022-12-14 06:55:21,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:55:21,324 INFO L495 AbstractCegarLoop]: Abstraction has 154956 states and 233116 transitions. [2022-12-14 06:55:21,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 06:55:21,324 INFO L276 IsEmpty]: Start isEmpty. Operand 154956 states and 233116 transitions. [2022-12-14 06:55:21,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-12-14 06:55:21,327 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:55:21,327 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 8, 7, 7, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:55:21,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 06:55:21,327 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:55:21,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:55:21,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1573699227, now seen corresponding path program 1 times [2022-12-14 06:55:21,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:55:21,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754653787] [2022-12-14 06:55:21,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:55:21,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:55:21,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:55:21,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1093 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1079 trivial. 0 not checked. [2022-12-14 06:55:21,638 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:55:21,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754653787] [2022-12-14 06:55:21,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754653787] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:55:21,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:55:21,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:55:21,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615405785] [2022-12-14 06:55:21,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:55:21,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:55:21,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:55:21,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:55:21,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:55:21,640 INFO L87 Difference]: Start difference. First operand 154956 states and 233116 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 06:55:23,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:55:36,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:55:36,941 INFO L93 Difference]: Finished difference Result 165218 states and 245574 transitions. [2022-12-14 06:55:36,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:55:36,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 240 [2022-12-14 06:55:36,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:55:37,636 INFO L225 Difference]: With dead ends: 165218 [2022-12-14 06:55:37,636 INFO L226 Difference]: Without dead ends: 165216 [2022-12-14 06:55:37,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:55:37,700 INFO L413 NwaCegarLoop]: 4020 mSDtfsCounter, 4165 mSDsluCounter, 8427 mSDsCounter, 0 mSdLazyCounter, 1690 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4170 SdHoareTripleChecker+Valid, 12447 SdHoareTripleChecker+Invalid, 1693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1690 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-12-14 06:55:37,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4170 Valid, 12447 Invalid, 1693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1690 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2022-12-14 06:55:37,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165216 states. [2022-12-14 06:55:47,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165216 to 165148. [2022-12-14 06:55:47,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165148 states, 102585 states have (on average 1.3262270312423843) internal successors, (136051), 105568 states have internal predecessors, (136051), 52343 states have call successors, (52343), 10361 states have call predecessors, (52343), 10217 states have return successors, (57112), 51079 states have call predecessors, (57112), 52340 states have call successors, (57112) [2022-12-14 06:55:48,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165148 states to 165148 states and 245506 transitions. [2022-12-14 06:55:48,511 INFO L78 Accepts]: Start accepts. Automaton has 165148 states and 245506 transitions. Word has length 240 [2022-12-14 06:55:48,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:55:48,511 INFO L495 AbstractCegarLoop]: Abstraction has 165148 states and 245506 transitions. [2022-12-14 06:55:48,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 06:55:48,512 INFO L276 IsEmpty]: Start isEmpty. Operand 165148 states and 245506 transitions. [2022-12-14 06:55:48,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-12-14 06:55:48,515 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:55:48,515 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 9, 8, 8, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:55:48,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 06:55:48,515 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:55:48,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:55:48,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1946557707, now seen corresponding path program 1 times [2022-12-14 06:55:48,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:55:48,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272988139] [2022-12-14 06:55:48,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:55:48,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:55:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:55:48,808 INFO L134 CoverageAnalysis]: Checked inductivity of 1123 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1107 trivial. 0 not checked. [2022-12-14 06:55:48,808 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:55:48,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272988139] [2022-12-14 06:55:48,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272988139] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:55:48,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:55:48,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:55:48,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276637325] [2022-12-14 06:55:48,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:55:48,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:55:48,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:55:48,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:55:48,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:55:48,809 INFO L87 Difference]: Start difference. First operand 165148 states and 245506 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 06:55:50,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:56:04,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:56:04,002 INFO L93 Difference]: Finished difference Result 165154 states and 245511 transitions. [2022-12-14 06:56:04,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:56:04,003 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 245 [2022-12-14 06:56:04,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:56:04,622 INFO L225 Difference]: With dead ends: 165154 [2022-12-14 06:56:04,622 INFO L226 Difference]: Without dead ends: 165152 [2022-12-14 06:56:04,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:56:04,689 INFO L413 NwaCegarLoop]: 3912 mSDtfsCounter, 4383 mSDsluCounter, 7804 mSDsCounter, 0 mSdLazyCounter, 1613 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4387 SdHoareTripleChecker+Valid, 11716 SdHoareTripleChecker+Invalid, 1615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1613 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-12-14 06:56:04,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4387 Valid, 11716 Invalid, 1615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1613 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-12-14 06:56:04,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165152 states. [2022-12-14 06:56:14,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165152 to 165152. [2022-12-14 06:56:14,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165152 states, 102588 states have (on average 1.3262174913245215) internal successors, (136054), 105571 states have internal predecessors, (136054), 52343 states have call successors, (52343), 10362 states have call predecessors, (52343), 10218 states have return successors, (57112), 51079 states have call predecessors, (57112), 52340 states have call successors, (57112) [2022-12-14 06:56:15,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165152 states to 165152 states and 245509 transitions. [2022-12-14 06:56:15,995 INFO L78 Accepts]: Start accepts. Automaton has 165152 states and 245509 transitions. Word has length 245 [2022-12-14 06:56:15,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:56:15,996 INFO L495 AbstractCegarLoop]: Abstraction has 165152 states and 245509 transitions. [2022-12-14 06:56:15,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 06:56:15,996 INFO L276 IsEmpty]: Start isEmpty. Operand 165152 states and 245509 transitions. [2022-12-14 06:56:16,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-12-14 06:56:16,003 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:56:16,003 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 10, 9, 9, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:56:16,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 06:56:16,004 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:56:16,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:56:16,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1285719250, now seen corresponding path program 1 times [2022-12-14 06:56:16,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:56:16,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131852094] [2022-12-14 06:56:16,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:56:16,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:56:16,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:56:16,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1183 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1165 trivial. 0 not checked. [2022-12-14 06:56:16,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:56:16,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131852094] [2022-12-14 06:56:16,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131852094] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:56:16,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:56:16,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:56:16,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055435679] [2022-12-14 06:56:16,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:56:16,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:56:16,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:56:16,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:56:16,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:56:16,351 INFO L87 Difference]: Start difference. First operand 165152 states and 245509 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 06:56:18,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:56:31,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:56:31,795 INFO L93 Difference]: Finished difference Result 165158 states and 245514 transitions. [2022-12-14 06:56:31,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:56:31,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 259 [2022-12-14 06:56:31,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:56:32,421 INFO L225 Difference]: With dead ends: 165158 [2022-12-14 06:56:32,421 INFO L226 Difference]: Without dead ends: 165156 [2022-12-14 06:56:32,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:56:32,490 INFO L413 NwaCegarLoop]: 3912 mSDtfsCounter, 4379 mSDsluCounter, 7804 mSDsCounter, 0 mSdLazyCounter, 1613 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4382 SdHoareTripleChecker+Valid, 11716 SdHoareTripleChecker+Invalid, 1615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1613 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-12-14 06:56:32,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4382 Valid, 11716 Invalid, 1615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1613 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-12-14 06:56:32,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165156 states. [2022-12-14 06:56:43,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165156 to 165156. [2022-12-14 06:56:43,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165156 states, 102591 states have (on average 1.3262079519645973) internal successors, (136057), 105574 states have internal predecessors, (136057), 52343 states have call successors, (52343), 10363 states have call predecessors, (52343), 10219 states have return successors, (57112), 51079 states have call predecessors, (57112), 52340 states have call successors, (57112) [2022-12-14 06:56:44,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165156 states to 165156 states and 245512 transitions. [2022-12-14 06:56:44,319 INFO L78 Accepts]: Start accepts. Automaton has 165156 states and 245512 transitions. Word has length 259 [2022-12-14 06:56:44,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:56:44,319 INFO L495 AbstractCegarLoop]: Abstraction has 165156 states and 245512 transitions. [2022-12-14 06:56:44,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 06:56:44,320 INFO L276 IsEmpty]: Start isEmpty. Operand 165156 states and 245512 transitions. [2022-12-14 06:56:44,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-12-14 06:56:44,325 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:56:44,325 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:56:44,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 06:56:44,326 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:56:44,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:56:44,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1363816935, now seen corresponding path program 1 times [2022-12-14 06:56:44,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:56:44,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713726308] [2022-12-14 06:56:44,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:56:44,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:56:44,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:56:44,585 INFO L134 CoverageAnalysis]: Checked inductivity of 995 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2022-12-14 06:56:44,585 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:56:44,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713726308] [2022-12-14 06:56:44,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713726308] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:56:44,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:56:44,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:56:44,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842040481] [2022-12-14 06:56:44,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:56:44,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:56:44,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:56:44,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:56:44,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:56:44,588 INFO L87 Difference]: Start difference. First operand 165156 states and 245512 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-12-14 06:56:46,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:57:08,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:57:08,328 INFO L93 Difference]: Finished difference Result 400656 states and 595366 transitions. [2022-12-14 06:57:08,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:57:08,328 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 253 [2022-12-14 06:57:08,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:57:09,659 INFO L225 Difference]: With dead ends: 400656 [2022-12-14 06:57:09,659 INFO L226 Difference]: Without dead ends: 235598 [2022-12-14 06:57:10,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:57:10,537 INFO L413 NwaCegarLoop]: 7007 mSDtfsCounter, 3543 mSDsluCounter, 3871 mSDsCounter, 0 mSdLazyCounter, 1517 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3543 SdHoareTripleChecker+Valid, 10878 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1517 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-12-14 06:57:10,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3543 Valid, 10878 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1517 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-12-14 06:57:10,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235598 states. [2022-12-14 06:57:25,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235598 to 235501. [2022-12-14 06:57:25,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235501 states, 146058 states have (on average 1.3231387530980843) internal successors, (193255), 150325 states have internal predecessors, (193255), 74676 states have call successors, (74676), 14970 states have call predecessors, (74676), 14764 states have return successors, (81469), 72850 states have call predecessors, (81469), 74673 states have call successors, (81469) [2022-12-14 06:57:26,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235501 states to 235501 states and 349400 transitions. [2022-12-14 06:57:26,690 INFO L78 Accepts]: Start accepts. Automaton has 235501 states and 349400 transitions. Word has length 253 [2022-12-14 06:57:26,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:57:26,691 INFO L495 AbstractCegarLoop]: Abstraction has 235501 states and 349400 transitions. [2022-12-14 06:57:26,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-12-14 06:57:26,691 INFO L276 IsEmpty]: Start isEmpty. Operand 235501 states and 349400 transitions. [2022-12-14 06:57:26,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-12-14 06:57:26,692 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:57:26,692 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 11, 10, 10, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:57:26,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 06:57:26,693 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:57:26,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:57:26,693 INFO L85 PathProgramCache]: Analyzing trace with hash 500624168, now seen corresponding path program 1 times [2022-12-14 06:57:26,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:57:26,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815133562] [2022-12-14 06:57:26,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:57:26,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:57:26,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:57:26,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1201 trivial. 0 not checked. [2022-12-14 06:57:26,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:57:26,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815133562] [2022-12-14 06:57:26,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815133562] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:57:26,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:57:26,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:57:26,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447002233] [2022-12-14 06:57:26,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:57:26,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:57:26,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:57:26,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:57:26,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:57:26,997 INFO L87 Difference]: Start difference. First operand 235501 states and 349400 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 06:57:29,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:57:48,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:57:48,517 INFO L93 Difference]: Finished difference Result 235507 states and 349405 transitions. [2022-12-14 06:57:48,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:57:48,518 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 264 [2022-12-14 06:57:48,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:57:49,430 INFO L225 Difference]: With dead ends: 235507 [2022-12-14 06:57:49,431 INFO L226 Difference]: Without dead ends: 235505 [2022-12-14 06:57:49,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:57:49,520 INFO L413 NwaCegarLoop]: 3912 mSDtfsCounter, 4379 mSDsluCounter, 7804 mSDsCounter, 0 mSdLazyCounter, 1613 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4381 SdHoareTripleChecker+Valid, 11716 SdHoareTripleChecker+Invalid, 1615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1613 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-12-14 06:57:49,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4381 Valid, 11716 Invalid, 1615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1613 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-12-14 06:57:49,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235505 states. [2022-12-14 06:58:05,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235505 to 235505. [2022-12-14 06:58:05,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235505 states, 146061 states have (on average 1.323132116033712) internal successors, (193258), 150328 states have internal predecessors, (193258), 74676 states have call successors, (74676), 14971 states have call predecessors, (74676), 14765 states have return successors, (81469), 72850 states have call predecessors, (81469), 74673 states have call successors, (81469) [2022-12-14 06:58:07,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235505 states to 235505 states and 349403 transitions. [2022-12-14 06:58:07,624 INFO L78 Accepts]: Start accepts. Automaton has 235505 states and 349403 transitions. Word has length 264 [2022-12-14 06:58:07,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:58:07,624 INFO L495 AbstractCegarLoop]: Abstraction has 235505 states and 349403 transitions. [2022-12-14 06:58:07,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 06:58:07,625 INFO L276 IsEmpty]: Start isEmpty. Operand 235505 states and 349403 transitions. [2022-12-14 06:58:07,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-12-14 06:58:07,626 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:58:07,626 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 12, 11, 11, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:58:07,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 06:58:07,627 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:58:07,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:58:07,627 INFO L85 PathProgramCache]: Analyzing trace with hash -917445403, now seen corresponding path program 1 times [2022-12-14 06:58:07,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:58:07,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788318736] [2022-12-14 06:58:07,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:58:07,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:58:07,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:58:08,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1237 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1215 trivial. 0 not checked. [2022-12-14 06:58:08,067 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:58:08,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788318736] [2022-12-14 06:58:08,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788318736] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:58:08,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:58:08,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:58:08,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292555458] [2022-12-14 06:58:08,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:58:08,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:58:08,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:58:08,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:58:08,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:58:08,069 INFO L87 Difference]: Start difference. First operand 235505 states and 349403 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 06:58:10,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:58:28,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:58:28,928 INFO L93 Difference]: Finished difference Result 235511 states and 349408 transitions. [2022-12-14 06:58:28,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:58:28,930 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 260 [2022-12-14 06:58:28,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:58:29,850 INFO L225 Difference]: With dead ends: 235511 [2022-12-14 06:58:29,850 INFO L226 Difference]: Without dead ends: 235507 [2022-12-14 06:58:29,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:58:29,947 INFO L413 NwaCegarLoop]: 3912 mSDtfsCounter, 4383 mSDsluCounter, 7804 mSDsCounter, 0 mSdLazyCounter, 1613 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4384 SdHoareTripleChecker+Valid, 11716 SdHoareTripleChecker+Invalid, 1615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1613 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:58:29,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4384 Valid, 11716 Invalid, 1615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1613 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-12-14 06:58:30,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235507 states. [2022-12-14 06:58:46,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235507 to 235507. [2022-12-14 06:58:46,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235507 states, 146063 states have (on average 1.3231208451147793) internal successors, (193259), 150329 states have internal predecessors, (193259), 74676 states have call successors, (74676), 14972 states have call predecessors, (74676), 14765 states have return successors, (81469), 72850 states have call predecessors, (81469), 74673 states have call successors, (81469) [2022-12-14 06:58:48,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235507 states to 235507 states and 349404 transitions. [2022-12-14 06:58:48,139 INFO L78 Accepts]: Start accepts. Automaton has 235507 states and 349404 transitions. Word has length 260 [2022-12-14 06:58:48,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:58:48,139 INFO L495 AbstractCegarLoop]: Abstraction has 235507 states and 349404 transitions. [2022-12-14 06:58:48,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 06:58:48,140 INFO L276 IsEmpty]: Start isEmpty. Operand 235507 states and 349404 transitions. [2022-12-14 06:58:48,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-12-14 06:58:48,141 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:58:48,141 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 13, 12, 12, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:58:48,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 06:58:48,142 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:58:48,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:58:48,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1547047640, now seen corresponding path program 1 times [2022-12-14 06:58:48,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:58:48,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140062470] [2022-12-14 06:58:48,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:58:48,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:58:48,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:58:48,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1309 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 1285 trivial. 0 not checked. [2022-12-14 06:58:48,673 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:58:48,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140062470] [2022-12-14 06:58:48,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140062470] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:58:48,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:58:48,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:58:48,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132257040] [2022-12-14 06:58:48,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:58:48,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:58:48,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:58:48,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:58:48,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:58:48,675 INFO L87 Difference]: Start difference. First operand 235507 states and 349404 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-12-14 06:58:50,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:58:52,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:58:54,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:58:59,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:59:13,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:59:13,733 INFO L93 Difference]: Finished difference Result 235507 states and 349404 transitions. [2022-12-14 06:59:13,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:59:13,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 274 [2022-12-14 06:59:13,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:59:14,633 INFO L225 Difference]: With dead ends: 235507 [2022-12-14 06:59:14,634 INFO L226 Difference]: Without dead ends: 234956 [2022-12-14 06:59:14,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:59:14,726 INFO L413 NwaCegarLoop]: 3910 mSDtfsCounter, 4375 mSDsluCounter, 7803 mSDsCounter, 0 mSdLazyCounter, 1609 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4375 SdHoareTripleChecker+Valid, 11713 SdHoareTripleChecker+Invalid, 1612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1609 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-12-14 06:59:14,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4375 Valid, 11713 Invalid, 1612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1609 Invalid, 2 Unknown, 0 Unchecked, 10.8s Time] [2022-12-14 06:59:14,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234956 states. [2022-12-14 06:59:31,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234956 to 234956. [2022-12-14 06:59:31,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234956 states, 145925 states have (on average 1.3221106732910741) internal successors, (192929), 149999 states have internal predecessors, (192929), 74277 states have call successors, (74277), 14957 states have call predecessors, (74277), 14752 states have return successors, (81073), 72644 states have call predecessors, (81073), 74277 states have call successors, (81073) [2022-12-14 06:59:33,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234956 states to 234956 states and 348279 transitions. [2022-12-14 06:59:33,255 INFO L78 Accepts]: Start accepts. Automaton has 234956 states and 348279 transitions. Word has length 274 [2022-12-14 06:59:33,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:59:33,255 INFO L495 AbstractCegarLoop]: Abstraction has 234956 states and 348279 transitions. [2022-12-14 06:59:33,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-12-14 06:59:33,256 INFO L276 IsEmpty]: Start isEmpty. Operand 234956 states and 348279 transitions. [2022-12-14 06:59:33,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-12-14 06:59:33,262 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:59:33,262 INFO L195 NwaCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:59:33,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 06:59:33,262 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:59:33,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:59:33,262 INFO L85 PathProgramCache]: Analyzing trace with hash 893746241, now seen corresponding path program 1 times [2022-12-14 06:59:33,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:59:33,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703468142] [2022-12-14 06:59:33,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:59:33,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:59:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:59:33,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1165 trivial. 0 not checked. [2022-12-14 06:59:33,843 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:59:33,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703468142] [2022-12-14 06:59:33,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703468142] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:59:33,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:59:33,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:59:33,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523034569] [2022-12-14 06:59:33,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:59:33,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:59:33,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:59:33,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:59:33,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:59:33,846 INFO L87 Difference]: Start difference. First operand 234956 states and 348279 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-14 06:59:35,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:59:56,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:59:56,043 INFO L93 Difference]: Finished difference Result 235056 states and 348377 transitions. [2022-12-14 06:59:56,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:59:56,044 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 317 [2022-12-14 06:59:56,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:59:56,984 INFO L225 Difference]: With dead ends: 235056 [2022-12-14 06:59:56,984 INFO L226 Difference]: Without dead ends: 235054 [2022-12-14 06:59:57,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 06:59:57,094 INFO L413 NwaCegarLoop]: 3975 mSDtfsCounter, 4073 mSDsluCounter, 8355 mSDsCounter, 0 mSdLazyCounter, 1673 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4074 SdHoareTripleChecker+Valid, 12330 SdHoareTripleChecker+Invalid, 1676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1673 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-12-14 06:59:57,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4074 Valid, 12330 Invalid, 1676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1673 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-12-14 06:59:57,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235054 states. [2022-12-14 07:00:15,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235054 to 234956. [2022-12-14 07:00:15,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234956 states, 145925 states have (on average 1.321466506767175) internal successors, (192835), 149999 states have internal predecessors, (192835), 74277 states have call successors, (74277), 14957 states have call predecessors, (74277), 14752 states have return successors, (81073), 72644 states have call predecessors, (81073), 74277 states have call successors, (81073) [2022-12-14 07:00:16,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234956 states to 234956 states and 348185 transitions. [2022-12-14 07:00:16,938 INFO L78 Accepts]: Start accepts. Automaton has 234956 states and 348185 transitions. Word has length 317 [2022-12-14 07:00:16,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:00:16,938 INFO L495 AbstractCegarLoop]: Abstraction has 234956 states and 348185 transitions. [2022-12-14 07:00:16,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-14 07:00:16,939 INFO L276 IsEmpty]: Start isEmpty. Operand 234956 states and 348185 transitions. [2022-12-14 07:00:16,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2022-12-14 07:00:16,949 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:00:16,949 INFO L195 NwaCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 9, 9, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:00:16,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 07:00:16,949 INFO L420 AbstractCegarLoop]: === Iteration 23 === 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)] === [2022-12-14 07:00:16,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:00:16,950 INFO L85 PathProgramCache]: Analyzing trace with hash 2073559142, now seen corresponding path program 1 times [2022-12-14 07:00:16,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:00:16,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490092260] [2022-12-14 07:00:16,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:00:16,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:00:17,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:00:17,701 INFO L134 CoverageAnalysis]: Checked inductivity of 1209 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1209 trivial. 0 not checked. [2022-12-14 07:00:17,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:00:17,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490092260] [2022-12-14 07:00:17,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490092260] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:00:17,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:00:17,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:00:17,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049661177] [2022-12-14 07:00:17,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:00:17,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:00:17,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:00:17,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:00:17,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:00:17,704 INFO L87 Difference]: Start difference. First operand 234956 states and 348185 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (49), 3 states have call predecessors, (49), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-12-14 07:00:19,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:00:41,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:00:41,979 INFO L93 Difference]: Finished difference Result 235054 states and 348282 transitions. [2022-12-14 07:00:41,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:00:41,980 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (49), 3 states have call predecessors, (49), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 368 [2022-12-14 07:00:41,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:00:43,103 INFO L225 Difference]: With dead ends: 235054 [2022-12-14 07:00:43,103 INFO L226 Difference]: Without dead ends: 235052 [2022-12-14 07:00:43,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:00:43,219 INFO L413 NwaCegarLoop]: 4030 mSDtfsCounter, 462 mSDsluCounter, 11736 mSDsCounter, 0 mSdLazyCounter, 2206 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 15766 SdHoareTripleChecker+Invalid, 2208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2206 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-12-14 07:00:43,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 15766 Invalid, 2208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2206 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2022-12-14 07:00:43,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235052 states. [2022-12-14 07:01:00,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235052 to 234956. [2022-12-14 07:01:00,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234956 states, 145925 states have (on average 1.3208223402432757) internal successors, (192741), 149999 states have internal predecessors, (192741), 74277 states have call successors, (74277), 14957 states have call predecessors, (74277), 14752 states have return successors, (81073), 72644 states have call predecessors, (81073), 74277 states have call successors, (81073) [2022-12-14 07:01:02,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234956 states to 234956 states and 348091 transitions. [2022-12-14 07:01:02,287 INFO L78 Accepts]: Start accepts. Automaton has 234956 states and 348091 transitions. Word has length 368 [2022-12-14 07:01:02,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:01:02,287 INFO L495 AbstractCegarLoop]: Abstraction has 234956 states and 348091 transitions. [2022-12-14 07:01:02,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (49), 3 states have call predecessors, (49), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-12-14 07:01:02,287 INFO L276 IsEmpty]: Start isEmpty. Operand 234956 states and 348091 transitions. [2022-12-14 07:01:02,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 674 [2022-12-14 07:01:02,318 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:01:02,319 INFO L195 NwaCegarLoop]: trace histogram [24, 16, 15, 15, 15, 15, 15, 15, 13, 13, 8, 6, 6, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:01:02,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 07:01:02,319 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:01:02,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:01:02,320 INFO L85 PathProgramCache]: Analyzing trace with hash 26193632, now seen corresponding path program 1 times [2022-12-14 07:01:02,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:01:02,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24508032] [2022-12-14 07:01:02,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:01:02,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:01:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:01:03,048 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:01:03,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24508032] [2022-12-14 07:01:03,049 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-14 07:01:03,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902403738] [2022-12-14 07:01:03,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:01:03,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:01:03,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9f7a88-f451-413e-b382-08a30df19217/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:01:03,051 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9f7a88-f451-413e-b382-08a30df19217/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:01:03,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9f7a88-f451-413e-b382-08a30df19217/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 07:01:05,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:01:05,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 10150 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 07:01:05,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:01:05,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1839 backedges. 445 proven. 0 refuted. 0 times theorem prover too weak. 1394 trivial. 0 not checked. [2022-12-14 07:01:05,703 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:01:05,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [902403738] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:01:05,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:01:05,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:01:05,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606237498] [2022-12-14 07:01:05,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:01:05,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:01:05,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:01:05,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:01:05,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:01:05,706 INFO L87 Difference]: Start difference. First operand 234956 states and 348091 transitions. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 2 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (111), 2 states have call predecessors, (111), 2 states have call successors, (111) [2022-12-14 07:01:07,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:01:28,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:01:28,536 INFO L93 Difference]: Finished difference Result 470090 states and 711566 transitions. [2022-12-14 07:01:28,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:01:28,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 2 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (111), 2 states have call predecessors, (111), 2 states have call successors, (111) Word has length 673 [2022-12-14 07:01:28,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:01:29,889 INFO L225 Difference]: With dead ends: 470090 [2022-12-14 07:01:29,889 INFO L226 Difference]: Without dead ends: 235232 [2022-12-14 07:01:31,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 672 GetRequests, 671 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:01:31,159 INFO L413 NwaCegarLoop]: 3870 mSDtfsCounter, 0 mSDsluCounter, 3864 mSDsCounter, 0 mSdLazyCounter, 1061 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7734 SdHoareTripleChecker+Invalid, 1066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1061 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-12-14 07:01:31,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7734 Invalid, 1066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1061 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-12-14 07:01:31,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235232 states.