./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.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_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/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_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/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_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/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 82e959473290e80a4f353bcd3c2747bafa4ce239975e14e29f8e5bf5eff4b01b --- 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 03:14:17,106 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 03:14:17,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 03:14:17,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 03:14:17,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 03:14:17,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 03:14:17,121 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 03:14:17,122 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 03:14:17,123 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 03:14:17,123 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 03:14:17,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 03:14:17,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 03:14:17,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 03:14:17,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 03:14:17,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 03:14:17,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 03:14:17,127 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 03:14:17,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 03:14:17,129 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 03:14:17,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 03:14:17,131 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 03:14:17,132 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 03:14:17,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 03:14:17,133 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 03:14:17,135 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 03:14:17,135 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 03:14:17,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 03:14:17,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 03:14:17,136 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 03:14:17,137 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 03:14:17,137 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 03:14:17,138 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 03:14:17,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 03:14:17,139 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 03:14:17,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 03:14:17,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 03:14:17,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 03:14:17,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 03:14:17,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 03:14:17,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 03:14:17,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 03:14:17,142 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 03:14:17,168 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 03:14:17,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 03:14:17,168 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 03:14:17,169 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 03:14:17,169 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 03:14:17,170 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 03:14:17,170 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 03:14:17,170 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 03:14:17,170 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 03:14:17,171 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 03:14:17,171 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 03:14:17,171 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 03:14:17,171 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 03:14:17,171 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 03:14:17,172 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 03:14:17,172 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 03:14:17,172 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 03:14:17,172 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 03:14:17,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 03:14:17,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 03:14:17,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 03:14:17,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 03:14:17,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 03:14:17,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 03:14:17,174 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 03:14:17,174 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 03:14:17,174 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 03:14:17,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 03:14:17,175 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 03:14:17,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 03:14:17,175 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 03:14:17,175 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 03:14:17,176 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 03:14:17,176 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 03:14:17,176 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 03:14:17,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 03:14:17,176 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 03:14:17,176 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 03:14:17,177 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_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82e959473290e80a4f353bcd3c2747bafa4ce239975e14e29f8e5bf5eff4b01b [2022-12-14 03:14:17,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 03:14:17,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 03:14:17,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 03:14:17,382 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 03:14:17,382 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 03:14:17,383 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i [2022-12-14 03:14:19,924 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 03:14:20,306 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 03:14:20,306 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i [2022-12-14 03:14:20,330 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/data/3addfcd3f/8383d5bba65747fb8a098c7c59989fb5/FLAG9e87fafa9 [2022-12-14 03:14:20,502 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/data/3addfcd3f/8383d5bba65747fb8a098c7c59989fb5 [2022-12-14 03:14:20,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 03:14:20,506 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 03:14:20,507 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 03:14:20,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 03:14:20,511 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 03:14:20,512 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:14:20" (1/1) ... [2022-12-14 03:14:20,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67eb583d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:14:20, skipping insertion in model container [2022-12-14 03:14:20,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:14:20" (1/1) ... [2022-12-14 03:14:20,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 03:14:20,661 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 03:14:21,125 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 03:14:21,133 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-12-14 03:14:21,142 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 03:14:21,150 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-12-14 03:14:21,159 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 03:14:21,254 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:21,299 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 03:14:21,303 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 03:14:21,304 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 03:14:21,311 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 03:14:21,316 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-12-14 03:14:21,340 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 03:14:21,347 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 03:14:21,350 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 03:14:21,369 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 03:14:21,407 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 03:14:21,408 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 03:14:21,417 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 03:14:21,418 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,439 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-14 03:14:21,484 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_byte [2022-12-14 03:14:21,488 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_dword [2022-12-14 03:14:21,491 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_byte [2022-12-14 03:14:21,495 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_dword [2022-12-14 03:14:21,549 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-12-14 03:14:21,566 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 03:14:21,623 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-12-14 03:14:21,733 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,738 WARN L623 FunctionHandler]: Unknown extern function pci_get_device [2022-12-14 03:14:21,738 WARN L623 FunctionHandler]: Unknown extern function pci_get_device [2022-12-14 03:14:21,739 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,740 WARN L623 FunctionHandler]: Unknown extern function pci_dev_put [2022-12-14 03:14:21,744 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,744 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,745 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,745 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,745 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,745 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 03:14:21,746 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,750 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,751 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,752 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 03:14:21,752 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,758 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 03:14:21,758 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,758 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 03:14:21,759 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-14 03:14:21,761 WARN L623 FunctionHandler]: Unknown extern function pci_iomap [2022-12-14 03:14:21,762 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 03:14:21,764 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,765 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,766 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,766 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,766 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,766 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,767 WARN L623 FunctionHandler]: Unknown extern function pci_get_device [2022-12-14 03:14:21,767 WARN L623 FunctionHandler]: Unknown extern function pci_dev_put [2022-12-14 03:14:21,768 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,768 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,768 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,769 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-14 03:14:21,769 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 03:14:21,772 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,773 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 03:14:21,774 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,775 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,776 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,777 WARN L623 FunctionHandler]: Unknown extern function yield [2022-12-14 03:14:21,778 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,779 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 03:14:21,779 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 03:14:21,783 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,786 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,787 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,787 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,787 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,788 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,788 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,788 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,788 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,789 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,789 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,789 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,789 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,790 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,790 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,790 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,791 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,791 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,791 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,795 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,796 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,796 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,800 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,800 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,800 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,801 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,802 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,802 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,803 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,803 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,803 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,803 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,804 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,804 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,804 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,805 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,806 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 03:14:21,806 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,806 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 03:14:21,807 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,807 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,807 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,808 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,808 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,808 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,809 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,809 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 03:14:21,809 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,809 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 03:14:21,809 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,810 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,811 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-12-14 03:14:21,811 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-12-14 03:14:21,812 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,813 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,813 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,813 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,813 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 03:14:21,814 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 03:14:21,815 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,815 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,816 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,816 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,816 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,817 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,817 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,819 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,819 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,820 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,822 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 03:14:21,823 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,823 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,824 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,830 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 03:14:21,831 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 03:14:21,831 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 03:14:21,831 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,832 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 03:14:21,833 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,833 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,833 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,834 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,834 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,835 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,835 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,836 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,837 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 03:14:21,839 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,841 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,842 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,842 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,842 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,844 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,844 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,846 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 03:14:21,847 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,847 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,848 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,849 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,850 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,851 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,851 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,851 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,853 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,854 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,856 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,856 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 03:14:21,857 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 03:14:21,857 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 03:14:21,857 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 03:14:21,861 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,861 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,862 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,865 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,866 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,866 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,866 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,867 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 03:14:21,867 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 03:14:21,871 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 03:14:21,872 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 03:14:21,872 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 03:14:21,884 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-12-14 03:14:21,888 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-12-14 03:14:21,892 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-12-14 03:14:21,895 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-12-14 03:14:21,900 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,900 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,901 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,902 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:21,906 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,909 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 03:14:21,909 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 03:14:21,910 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 03:14:21,911 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 03:14:21,911 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-12-14 03:14:21,915 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,915 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,915 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,916 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,916 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,916 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,916 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,916 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,917 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,917 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,934 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,934 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,935 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,935 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,935 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,935 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,936 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,936 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,940 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 03:14:21,941 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-14 03:14:21,941 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 03:14:21,945 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 03:14:21,945 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,945 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,946 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 03:14:21,946 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-12-14 03:14:21,950 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-12-14 03:14:21,950 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 03:14:21,950 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 03:14:21,951 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,951 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:21,951 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,951 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:21,956 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,179 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,179 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,179 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,179 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,179 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,180 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,180 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,180 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,180 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,180 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,180 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,182 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 03:14:22,183 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 03:14:22,183 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 03:14:22,186 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 03:14:22,188 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 03:14:22,188 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 03:14:22,194 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 03:14:22,196 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 03:14:22,200 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 03:14:22,201 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 03:14:22,202 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 03:14:22,203 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 03:14:22,203 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 03:14:22,204 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 03:14:22,204 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 03:14:22,205 WARN L623 FunctionHandler]: Unknown extern function del_timer [2022-12-14 03:14:22,205 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 03:14:22,206 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 03:14:22,206 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 03:14:22,206 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 03:14:22,207 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 03:14:22,247 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 03:14:22,248 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 03:14:22,255 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 03:14:22,666 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_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343367,343380] [2022-12-14 03:14:22,669 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_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343536,343549] [2022-12-14 03:14:22,670 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_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343703,343716] [2022-12-14 03:14:22,670 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_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343871,343884] [2022-12-14 03:14:22,671 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,672 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,673 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,683 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,683 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 03:14:22,704 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 03:14:22,786 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 03:14:22,787 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-12-14 03:14:22,787 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 03:14:22,788 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-12-14 03:14:22,788 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 03:14:22,789 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,794 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 03:14:22,794 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 03:14:22,795 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 03:14:22,796 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 03:14:22,796 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-12-14 03:14:22,798 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 03:14:22,799 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 03:14:22,799 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 03:14:22,800 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 03:14:22,801 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 03:14:22,801 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 03:14:22,802 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 03:14:22,803 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,804 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-14 03:14:22,805 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_byte [2022-12-14 03:14:22,807 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_dword [2022-12-14 03:14:22,809 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_byte [2022-12-14 03:14:22,810 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_dword [2022-12-14 03:14:22,813 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-12-14 03:14:22,814 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 03:14:22,816 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-12-14 03:14:22,820 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,821 WARN L623 FunctionHandler]: Unknown extern function pci_get_device [2022-12-14 03:14:22,821 WARN L623 FunctionHandler]: Unknown extern function pci_get_device [2022-12-14 03:14:22,822 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,822 WARN L623 FunctionHandler]: Unknown extern function pci_dev_put [2022-12-14 03:14:22,823 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,823 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,823 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,823 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,824 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,824 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 03:14:22,824 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,825 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,825 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,826 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 03:14:22,826 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,827 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 03:14:22,827 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,828 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 03:14:22,829 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-14 03:14:22,830 WARN L623 FunctionHandler]: Unknown extern function pci_iomap [2022-12-14 03:14:22,830 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 03:14:22,832 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,833 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,833 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,833 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,833 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,834 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,834 WARN L623 FunctionHandler]: Unknown extern function pci_get_device [2022-12-14 03:14:22,834 WARN L623 FunctionHandler]: Unknown extern function pci_dev_put [2022-12-14 03:14:22,834 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,835 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,835 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,836 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-14 03:14:22,836 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 03:14:22,838 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,838 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 03:14:22,840 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,840 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,841 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,841 WARN L623 FunctionHandler]: Unknown extern function yield [2022-12-14 03:14:22,842 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,843 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 03:14:22,843 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 03:14:22,846 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,849 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,850 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,850 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,850 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,851 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,851 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,851 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,851 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,852 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,852 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,852 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,852 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,853 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,853 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,853 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,854 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,854 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,854 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,855 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,855 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,855 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,856 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,856 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,856 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,857 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,858 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,858 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,858 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,859 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,859 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,859 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,859 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,860 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,860 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,860 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,862 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 03:14:22,862 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,862 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 03:14:22,863 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,863 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,864 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,864 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,864 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,865 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,865 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,865 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 03:14:22,866 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,866 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 03:14:22,866 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,866 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,868 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-12-14 03:14:22,868 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-12-14 03:14:22,869 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,869 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,869 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,870 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,870 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 03:14:22,871 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 03:14:22,871 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,872 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,872 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,872 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,873 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,873 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,873 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,875 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,875 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,876 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,878 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 03:14:22,878 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,879 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,879 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,883 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 03:14:22,883 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 03:14:22,883 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 03:14:22,884 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,884 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 03:14:22,885 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,885 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,885 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,885 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,886 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,886 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,886 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,887 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,887 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 03:14:22,889 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,890 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,890 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,891 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,891 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,892 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,892 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,894 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 03:14:22,894 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,894 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,895 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,896 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,896 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,897 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,897 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,897 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,898 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,900 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,911 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,912 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 03:14:22,912 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 03:14:22,912 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 03:14:22,912 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 03:14:22,915 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,916 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,917 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,919 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,919 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,919 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,919 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,920 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 03:14:22,920 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 03:14:22,921 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 03:14:22,921 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 03:14:22,921 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 03:14:22,922 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-12-14 03:14:22,923 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-12-14 03:14:22,923 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-12-14 03:14:22,924 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-12-14 03:14:22,924 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,925 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,925 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,926 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,926 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,929 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 03:14:22,929 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 03:14:22,930 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 03:14:22,930 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 03:14:22,930 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-12-14 03:14:22,933 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,933 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,934 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,934 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,934 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,934 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,934 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,935 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,935 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,935 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,936 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,936 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,937 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,937 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,937 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,937 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,938 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,938 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,938 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 03:14:22,939 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-14 03:14:22,939 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 03:14:22,940 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 03:14:22,940 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,940 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,940 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 03:14:22,940 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-12-14 03:14:22,941 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-12-14 03:14:22,941 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 03:14:22,941 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 03:14:22,941 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,941 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 03:14:22,942 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,942 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 03:14:22,943 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 03:14:22,946 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,946 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,946 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,947 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,947 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,947 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,947 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,947 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,947 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,947 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,948 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,949 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 03:14:22,950 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 03:14:22,950 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 03:14:22,952 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 03:14:22,954 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 03:14:22,954 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 03:14:22,958 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 03:14:22,959 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 03:14:22,965 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 03:14:22,966 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 03:14:22,969 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 03:14:22,969 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 03:14:22,969 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 03:14:22,970 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 03:14:22,970 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 03:14:22,971 WARN L623 FunctionHandler]: Unknown extern function del_timer [2022-12-14 03:14:22,971 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 03:14:22,971 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 03:14:22,971 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 03:14:22,971 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 03:14:22,972 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 03:14:22,973 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 03:14:22,973 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 03:14:22,974 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 03:14:22,987 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_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343367,343380] [2022-12-14 03:14:22,987 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_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343536,343549] [2022-12-14 03:14:22,987 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_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343703,343716] [2022-12-14 03:14:22,988 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_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343871,343884] [2022-12-14 03:14:22,988 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,990 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,991 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,993 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,993 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 03:14:22,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 03:14:23,110 INFO L208 MainTranslator]: Completed translation [2022-12-14 03:14:23,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:14:23 WrapperNode [2022-12-14 03:14:23,111 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 03:14:23,117 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 03:14:23,117 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 03:14:23,117 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 03:14:23,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:14:23" (1/1) ... [2022-12-14 03:14:23,172 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:14:23" (1/1) ... [2022-12-14 03:14:23,262 INFO L138 Inliner]: procedures = 454, calls = 1956, calls flagged for inlining = 238, calls inlined = 222, statements flattened = 5208 [2022-12-14 03:14:23,262 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 03:14:23,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 03:14:23,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 03:14:23,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 03:14:23,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:14:23" (1/1) ... [2022-12-14 03:14:23,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:14:23" (1/1) ... [2022-12-14 03:14:23,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:14:23" (1/1) ... [2022-12-14 03:14:23,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:14:23" (1/1) ... [2022-12-14 03:14:23,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:14:23" (1/1) ... [2022-12-14 03:14:23,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:14:23" (1/1) ... [2022-12-14 03:14:23,387 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:14:23" (1/1) ... [2022-12-14 03:14:23,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:14:23" (1/1) ... [2022-12-14 03:14:23,416 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 03:14:23,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 03:14:23,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 03:14:23,417 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 03:14:23,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:14:23" (1/1) ... [2022-12-14 03:14:23,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 03:14:23,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:14:23,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 03:14:23,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 03:14:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rxfilter [2022-12-14 03:14:23,469 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rxfilter [2022-12-14 03:14:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-12-14 03:14:23,469 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-12-14 03:14:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-12-14 03:14:23,470 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-12-14 03:14:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 03:14:23,470 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 03:14:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-12-14 03:14:23,470 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-12-14 03:14:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-12-14 03:14:23,470 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-12-14 03:14:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 03:14:23,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 03:14:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 03:14:23,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 03:14:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-12-14 03:14:23,470 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-12-14 03:14:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-12-14 03:14:23,470 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-12-14 03:14:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-12-14 03:14:23,470 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-12-14 03:14:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_default_phy [2022-12-14 03:14:23,470 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_default_phy [2022-12-14 03:14:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-12-14 03:14:23,470 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-12-14 03:14:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_75 [2022-12-14 03:14:23,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_75 [2022-12-14 03:14:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2022-12-14 03:14:23,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2022-12-14 03:14:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-12-14 03:14:23,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-12-14 03:14:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-12-14 03:14:23,471 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-12-14 03:14:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_check_mode [2022-12-14 03:14:23,471 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_check_mode [2022-12-14 03:14:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-12-14 03:14:23,471 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-12-14 03:14:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 03:14:23,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 03:14:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-12-14 03:14:23,471 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-12-14 03:14:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-12-14 03:14:23,471 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-12-14 03:14:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-12-14 03:14:23,472 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-12-14 03:14:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 03:14:23,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 03:14:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_remove [2022-12-14 03:14:23,472 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_remove [2022-12-14 03:14:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure sis630_set_eq [2022-12-14 03:14:23,472 INFO L138 BoogieDeclarations]: Found implementation of procedure sis630_set_eq [2022-12-14 03:14:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_device [2022-12-14 03:14:23,472 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_device [2022-12-14 03:14:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-12-14 03:14:23,472 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-12-14 03:14:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 03:14:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sis900_cleanup_module_14_2 [2022-12-14 03:14:23,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sis900_cleanup_module_14_2 [2022-12-14 03:14:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_tx_ring [2022-12-14 03:14:23,472 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_tx_ring [2022-12-14 03:14:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-12-14 03:14:23,472 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-12-14 03:14:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_sis900_private [2022-12-14 03:14:23,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_sis900_private [2022-12-14 03:14:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-12-14 03:14:23,473 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-12-14 03:14:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 03:14:23,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 03:14:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_mode [2022-12-14 03:14:23,473 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_mode [2022-12-14 03:14:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 03:14:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-12-14 03:14:23,473 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-12-14 03:14:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_sis900_private [2022-12-14 03:14:23,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_sis900_private [2022-12-14 03:14:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-12-14 03:14:23,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-12-14 03:14:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-12-14 03:14:23,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-12-14 03:14:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-12-14 03:14:23,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-12-14 03:14:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-12-14 03:14:23,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-12-14 03:14:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-12-14 03:14:23,473 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-12-14 03:14:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_interrupt [2022-12-14 03:14:23,474 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_interrupt [2022-12-14 03:14:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_reset_phy [2022-12-14 03:14:23,474 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_reset_phy [2022-12-14 03:14:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 03:14:23,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 03:14:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 03:14:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-12-14 03:14:23,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-12-14 03:14:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-12-14 03:14:23,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-12-14 03:14:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 03:14:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 03:14:23,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 03:14:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 03:14:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-12-14 03:14:23,475 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-12-14 03:14:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_open [2022-12-14 03:14:23,475 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_open [2022-12-14 03:14:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 03:14:23,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 03:14:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_nway_reset [2022-12-14 03:14:23,475 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_nway_reset [2022-12-14 03:14:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-12-14 03:14:23,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-12-14 03:14:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 03:14:23,475 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 03:14:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-12-14 03:14:23,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-12-14 03:14:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-12-14 03:14:23,475 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-12-14 03:14:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 03:14:23,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 03:14:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_close [2022-12-14 03:14:23,475 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_close [2022-12-14 03:14:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 03:14:23,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 03:14:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 03:14:23,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 03:14:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-12-14 03:14:23,476 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-12-14 03:14:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-12-14 03:14:23,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-12-14 03:14:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_reset [2022-12-14 03:14:23,476 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_reset [2022-12-14 03:14:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-12-14 03:14:23,476 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-12-14 03:14:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-12-14 03:14:23,476 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-12-14 03:14:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-12-14 03:14:23,476 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-12-14 03:14:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-12-14 03:14:23,476 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-12-14 03:14:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-12-14 03:14:23,476 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-12-14 03:14:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-12-14 03:14:23,476 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-12-14 03:14:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 03:14:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-12-14 03:14:23,477 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-12-14 03:14:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_74 [2022-12-14 03:14:23,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_74 [2022-12-14 03:14:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 03:14:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-12-14 03:14:23,477 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-12-14 03:14:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rx_ring [2022-12-14 03:14:23,477 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rx_ring [2022-12-14 03:14:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 03:14:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-12-14 03:14:23,477 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-12-14 03:14:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-12-14 03:14:23,477 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-12-14 03:14:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 03:14:23,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 03:14:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hw_addr_random [2022-12-14 03:14:23,477 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hw_addr_random [2022-12-14 03:14:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-12-14 03:14:23,477 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-12-14 03:14:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-12-14 03:14:23,478 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-12-14 03:14:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_poll [2022-12-14 03:14:23,478 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_poll [2022-12-14 03:14:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-12-14 03:14:23,478 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-12-14 03:14:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-12-14 03:14:23,478 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-12-14 03:14:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-12-14 03:14:23,478 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-12-14 03:14:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-14 03:14:23,478 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-14 03:14:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 03:14:23,478 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 03:14:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_resume [2022-12-14 03:14:23,478 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_resume [2022-12-14 03:14:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 03:14:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 03:14:23,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 03:14:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2022-12-14 03:14:23,478 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2022-12-14 03:14:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_idle [2022-12-14 03:14:23,479 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_idle [2022-12-14 03:14:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_tx_timeout [2022-12-14 03:14:23,479 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_tx_timeout [2022-12-14 03:14:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 03:14:23,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 03:14:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-12-14 03:14:23,479 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-12-14 03:14:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-12-14 03:14:23,479 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-12-14 03:14:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 03:14:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-12-14 03:14:23,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-12-14 03:14:24,106 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 03:14:24,109 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 03:14:24,378 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 03:14:26,733 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-12-14 03:14:26,821 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 03:14:27,797 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 03:14:27,797 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 03:14:27,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:14:27 BoogieIcfgContainer [2022-12-14 03:14:27,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 03:14:27,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 03:14:27,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 03:14:27,805 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 03:14:27,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:14:20" (1/3) ... [2022-12-14 03:14:27,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d55563f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:14:27, skipping insertion in model container [2022-12-14 03:14:27,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:14:23" (2/3) ... [2022-12-14 03:14:27,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d55563f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:14:27, skipping insertion in model container [2022-12-14 03:14:27,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:14:27" (3/3) ... [2022-12-14 03:14:27,807 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i [2022-12-14 03:14:27,821 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 03:14:27,821 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-14 03:14:27,876 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 03:14:27,881 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;@20ee6483, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 03:14:27,881 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-14 03:14:27,887 INFO L276 IsEmpty]: Start isEmpty. Operand has 1444 states, 823 states have (on average 1.2940461725394896) internal successors, (1065), 850 states have internal predecessors, (1065), 526 states have call successors, (526), 93 states have call predecessors, (526), 92 states have return successors, (520), 512 states have call predecessors, (520), 520 states have call successors, (520) [2022-12-14 03:14:27,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-12-14 03:14:27,899 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:14:27,900 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:14:27,900 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 03:14:27,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:14:27,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1144186185, now seen corresponding path program 1 times [2022-12-14 03:14:27,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:14:27,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050263793] [2022-12-14 03:14:27,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:14:27,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:14:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:14:28,381 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2022-12-14 03:14:28,382 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:14:28,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050263793] [2022-12-14 03:14:28,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050263793] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:14:28,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:14:28,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 03:14:28,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900426605] [2022-12-14 03:14:28,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:14:28,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 03:14:28,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:14:28,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 03:14:28,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:14:28,420 INFO L87 Difference]: Start difference. First operand has 1444 states, 823 states have (on average 1.2940461725394896) internal successors, (1065), 850 states have internal predecessors, (1065), 526 states have call successors, (526), 93 states have call predecessors, (526), 92 states have return successors, (520), 512 states have call predecessors, (520), 520 states have call successors, (520) 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-14 03:14:30,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:14:33,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:14:34,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:14:34,459 INFO L93 Difference]: Finished difference Result 4019 states and 5936 transitions. [2022-12-14 03:14:34,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 03:14:34,461 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 131 [2022-12-14 03:14:34,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:14:34,485 INFO L225 Difference]: With dead ends: 4019 [2022-12-14 03:14:34,486 INFO L226 Difference]: Without dead ends: 2588 [2022-12-14 03:14:34,496 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 03:14:34,498 INFO L413 NwaCegarLoop]: 2224 mSDtfsCounter, 1686 mSDsluCounter, 1782 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1686 SdHoareTripleChecker+Valid, 4006 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-12-14 03:14:34,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1686 Valid, 4006 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 591 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-12-14 03:14:34,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2588 states. [2022-12-14 03:14:34,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2588 to 2584. [2022-12-14 03:14:34,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2584 states, 1484 states have (on average 1.284366576819407) internal successors, (1906), 1531 states have internal predecessors, (1906), 922 states have call successors, (922), 176 states have call predecessors, (922), 175 states have return successors, (918), 904 states have call predecessors, (918), 918 states have call successors, (918) [2022-12-14 03:14:34,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2584 states to 2584 states and 3746 transitions. [2022-12-14 03:14:34,682 INFO L78 Accepts]: Start accepts. Automaton has 2584 states and 3746 transitions. Word has length 131 [2022-12-14 03:14:34,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:14:34,683 INFO L495 AbstractCegarLoop]: Abstraction has 2584 states and 3746 transitions. [2022-12-14 03:14:34,683 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-14 03:14:34,683 INFO L276 IsEmpty]: Start isEmpty. Operand 2584 states and 3746 transitions. [2022-12-14 03:14:34,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-12-14 03:14:34,686 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:14:34,686 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:14:34,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 03:14:34,686 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 03:14:34,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:14:34,687 INFO L85 PathProgramCache]: Analyzing trace with hash -958506358, now seen corresponding path program 1 times [2022-12-14 03:14:34,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:14:34,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028099653] [2022-12-14 03:14:34,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:14:34,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:14:34,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:14:34,876 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2022-12-14 03:14:34,876 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:14:34,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028099653] [2022-12-14 03:14:34,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028099653] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:14:34,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:14:34,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 03:14:34,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677372018] [2022-12-14 03:14:34,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:14:34,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 03:14:34,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:14:34,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 03:14:34,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:14:34,879 INFO L87 Difference]: Start difference. First operand 2584 states and 3746 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-14 03:14:38,799 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 03:14:40,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:14:40,334 INFO L93 Difference]: Finished difference Result 7419 states and 10739 transitions. [2022-12-14 03:14:40,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 03:14:40,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 135 [2022-12-14 03:14:40,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:14:40,363 INFO L225 Difference]: With dead ends: 7419 [2022-12-14 03:14:40,364 INFO L226 Difference]: Without dead ends: 4858 [2022-12-14 03:14:40,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:14:40,378 INFO L413 NwaCegarLoop]: 2235 mSDtfsCounter, 1727 mSDsluCounter, 1745 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1727 SdHoareTripleChecker+Valid, 3980 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-12-14 03:14:40,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1727 Valid, 3980 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 575 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-12-14 03:14:40,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4858 states. [2022-12-14 03:14:40,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4858 to 4829. [2022-12-14 03:14:40,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4829 states, 2780 states have (on average 1.2841726618705036) internal successors, (3570), 2870 states have internal predecessors, (3570), 1707 states have call successors, (1707), 344 states have call predecessors, (1707), 339 states have return successors, (1707), 1664 states have call predecessors, (1707), 1703 states have call successors, (1707) [2022-12-14 03:14:40,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4829 states to 4829 states and 6984 transitions. [2022-12-14 03:14:40,652 INFO L78 Accepts]: Start accepts. Automaton has 4829 states and 6984 transitions. Word has length 135 [2022-12-14 03:14:40,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:14:40,653 INFO L495 AbstractCegarLoop]: Abstraction has 4829 states and 6984 transitions. [2022-12-14 03:14:40,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-14 03:14:40,653 INFO L276 IsEmpty]: Start isEmpty. Operand 4829 states and 6984 transitions. [2022-12-14 03:14:40,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-12-14 03:14:40,655 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:14:40,656 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:14:40,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 03:14:40,656 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 03:14:40,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:14:40,657 INFO L85 PathProgramCache]: Analyzing trace with hash -538308198, now seen corresponding path program 1 times [2022-12-14 03:14:40,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:14:40,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897117517] [2022-12-14 03:14:40,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:14:40,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:14:40,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:14:40,803 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2022-12-14 03:14:40,804 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:14:40,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897117517] [2022-12-14 03:14:40,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897117517] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:14:40,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:14:40,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 03:14:40,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320987680] [2022-12-14 03:14:40,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:14:40,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 03:14:40,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:14:40,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 03:14:40,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:14:40,806 INFO L87 Difference]: Start difference. First operand 4829 states and 6984 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-14 03:14:43,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:14:48,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:14:48,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:14:48,543 INFO L93 Difference]: Finished difference Result 11421 states and 16440 transitions. [2022-12-14 03:14:48,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 03:14:48,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 137 [2022-12-14 03:14:48,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:14:48,590 INFO L225 Difference]: With dead ends: 11421 [2022-12-14 03:14:48,590 INFO L226 Difference]: Without dead ends: 6615 [2022-12-14 03:14:48,603 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 03:14:48,603 INFO L413 NwaCegarLoop]: 2244 mSDtfsCounter, 1742 mSDsluCounter, 1743 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1742 SdHoareTripleChecker+Valid, 3987 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-12-14 03:14:48,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1742 Valid, 3987 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 608 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-12-14 03:14:48,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6615 states. [2022-12-14 03:14:48,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6615 to 6588. [2022-12-14 03:14:48,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6588 states, 3736 states have (on average 1.2628479657387581) internal successors, (4718), 3868 states have internal predecessors, (4718), 2357 states have call successors, (2357), 500 states have call predecessors, (2357), 492 states have return successors, (2360), 2294 states have call predecessors, (2360), 2353 states have call successors, (2360) [2022-12-14 03:14:48,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6588 states to 6588 states and 9435 transitions. [2022-12-14 03:14:48,845 INFO L78 Accepts]: Start accepts. Automaton has 6588 states and 9435 transitions. Word has length 137 [2022-12-14 03:14:48,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:14:48,846 INFO L495 AbstractCegarLoop]: Abstraction has 6588 states and 9435 transitions. [2022-12-14 03:14:48,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-14 03:14:48,846 INFO L276 IsEmpty]: Start isEmpty. Operand 6588 states and 9435 transitions. [2022-12-14 03:14:48,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-12-14 03:14:48,847 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:14:48,847 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 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] [2022-12-14 03:14:48,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 03:14:48,848 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 03:14:48,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:14:48,848 INFO L85 PathProgramCache]: Analyzing trace with hash 427467348, now seen corresponding path program 1 times [2022-12-14 03:14:48,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:14:48,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694454977] [2022-12-14 03:14:48,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:14:48,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:14:48,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:14:49,202 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 464 trivial. 0 not checked. [2022-12-14 03:14:49,202 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:14:49,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694454977] [2022-12-14 03:14:49,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694454977] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:14:49,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:14:49,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 03:14:49,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179874390] [2022-12-14 03:14:49,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:14:49,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 03:14:49,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:14:49,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 03:14:49,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-12-14 03:14:49,205 INFO L87 Difference]: Start difference. First operand 6588 states and 9435 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-14 03:14:52,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:14:55,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:14:57,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:15:00,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:00,784 INFO L93 Difference]: Finished difference Result 16665 states and 23812 transitions. [2022-12-14 03:15:00,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 03:15:00,785 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 144 [2022-12-14 03:15:00,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:00,835 INFO L225 Difference]: With dead ends: 16665 [2022-12-14 03:15:00,835 INFO L226 Difference]: Without dead ends: 10100 [2022-12-14 03:15:00,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-12-14 03:15:00,862 INFO L413 NwaCegarLoop]: 2909 mSDtfsCounter, 5031 mSDsluCounter, 2247 mSDsCounter, 0 mSdLazyCounter, 2467 mSolverCounterSat, 1878 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5133 SdHoareTripleChecker+Valid, 5156 SdHoareTripleChecker+Invalid, 4345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1878 IncrementalHoareTripleChecker+Valid, 2467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:00,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5133 Valid, 5156 Invalid, 4345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1878 Valid, 2467 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2022-12-14 03:15:00,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10100 states. [2022-12-14 03:15:01,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10100 to 10030. [2022-12-14 03:15:01,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10030 states, 5801 states have (on average 1.2692639200137907) internal successors, (7363), 5989 states have internal predecessors, (7363), 3439 states have call successors, (3439), 806 states have call predecessors, (3439), 787 states have return successors, (3440), 3336 states have call predecessors, (3440), 3435 states have call successors, (3440) [2022-12-14 03:15:01,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10030 states to 10030 states and 14242 transitions. [2022-12-14 03:15:01,279 INFO L78 Accepts]: Start accepts. Automaton has 10030 states and 14242 transitions. Word has length 144 [2022-12-14 03:15:01,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:01,279 INFO L495 AbstractCegarLoop]: Abstraction has 10030 states and 14242 transitions. [2022-12-14 03:15:01,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-14 03:15:01,280 INFO L276 IsEmpty]: Start isEmpty. Operand 10030 states and 14242 transitions. [2022-12-14 03:15:01,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-12-14 03:15:01,282 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:01,282 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:01,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 03:15:01,282 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 03:15:01,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:01,283 INFO L85 PathProgramCache]: Analyzing trace with hash -857737215, now seen corresponding path program 1 times [2022-12-14 03:15:01,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:01,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862393724] [2022-12-14 03:15:01,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:01,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:01,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:01,547 INFO L134 CoverageAnalysis]: Checked inductivity of 567 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2022-12-14 03:15:01,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:01,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862393724] [2022-12-14 03:15:01,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862393724] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:01,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:01,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 03:15:01,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491158204] [2022-12-14 03:15:01,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:01,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 03:15:01,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:01,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 03:15:01,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:15:01,550 INFO L87 Difference]: Start difference. First operand 10030 states and 14242 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, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 03:15:06,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:15:08,870 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 03:15:09,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:09,356 INFO L93 Difference]: Finished difference Result 10036 states and 14247 transitions. [2022-12-14 03:15:09,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 03:15:09,357 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, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 173 [2022-12-14 03:15:09,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:09,391 INFO L225 Difference]: With dead ends: 10036 [2022-12-14 03:15:09,391 INFO L226 Difference]: Without dead ends: 10034 [2022-12-14 03:15:09,397 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 03:15:09,397 INFO L413 NwaCegarLoop]: 1795 mSDtfsCounter, 2034 mSDsluCounter, 3577 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2045 SdHoareTripleChecker+Valid, 5372 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:09,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2045 Valid, 5372 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 878 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-12-14 03:15:09,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10034 states. [2022-12-14 03:15:09,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10034 to 10034. [2022-12-14 03:15:09,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10034 states, 5804 states have (on average 1.2691247415575466) internal successors, (7366), 5992 states have internal predecessors, (7366), 3439 states have call successors, (3439), 807 states have call predecessors, (3439), 788 states have return successors, (3440), 3336 states have call predecessors, (3440), 3435 states have call successors, (3440) [2022-12-14 03:15:09,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10034 states to 10034 states and 14245 transitions. [2022-12-14 03:15:09,849 INFO L78 Accepts]: Start accepts. Automaton has 10034 states and 14245 transitions. Word has length 173 [2022-12-14 03:15:09,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:09,849 INFO L495 AbstractCegarLoop]: Abstraction has 10034 states and 14245 transitions. [2022-12-14 03:15:09,849 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, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 03:15:09,849 INFO L276 IsEmpty]: Start isEmpty. Operand 10034 states and 14245 transitions. [2022-12-14 03:15:09,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-12-14 03:15:09,851 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:09,851 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:09,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 03:15:09,852 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 03:15:09,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:09,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1894136135, now seen corresponding path program 1 times [2022-12-14 03:15:09,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:09,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273176858] [2022-12-14 03:15:09,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:09,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:09,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:10,090 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2022-12-14 03:15:10,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:10,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273176858] [2022-12-14 03:15:10,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273176858] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:10,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:10,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 03:15:10,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968359123] [2022-12-14 03:15:10,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:10,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 03:15:10,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:10,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 03:15:10,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:15:10,092 INFO L87 Difference]: Start difference. First operand 10034 states and 14245 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, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 03:15:15,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:15:17,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:15:18,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:18,493 INFO L93 Difference]: Finished difference Result 10040 states and 14250 transitions. [2022-12-14 03:15:18,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 03:15:18,494 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, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 178 [2022-12-14 03:15:18,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:18,520 INFO L225 Difference]: With dead ends: 10040 [2022-12-14 03:15:18,520 INFO L226 Difference]: Without dead ends: 10038 [2022-12-14 03:15:18,524 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 03:15:18,524 INFO L413 NwaCegarLoop]: 1798 mSDtfsCounter, 2029 mSDsluCounter, 3577 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2039 SdHoareTripleChecker+Valid, 5375 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:18,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2039 Valid, 5375 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 878 Invalid, 2 Unknown, 0 Unchecked, 8.0s Time] [2022-12-14 03:15:18,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10038 states. [2022-12-14 03:15:18,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10038 to 10038. [2022-12-14 03:15:18,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10038 states, 5807 states have (on average 1.2689857069054589) internal successors, (7369), 5995 states have internal predecessors, (7369), 3439 states have call successors, (3439), 808 states have call predecessors, (3439), 789 states have return successors, (3440), 3336 states have call predecessors, (3440), 3435 states have call successors, (3440) [2022-12-14 03:15:18,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10038 states to 10038 states and 14248 transitions. [2022-12-14 03:15:18,947 INFO L78 Accepts]: Start accepts. Automaton has 10038 states and 14248 transitions. Word has length 178 [2022-12-14 03:15:18,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:18,947 INFO L495 AbstractCegarLoop]: Abstraction has 10038 states and 14248 transitions. [2022-12-14 03:15:18,947 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, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 03:15:18,947 INFO L276 IsEmpty]: Start isEmpty. Operand 10038 states and 14248 transitions. [2022-12-14 03:15:18,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-12-14 03:15:18,949 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:18,949 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:18,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 03:15:18,950 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 03:15:18,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:18,950 INFO L85 PathProgramCache]: Analyzing trace with hash -146379869, now seen corresponding path program 1 times [2022-12-14 03:15:18,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:18,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537942571] [2022-12-14 03:15:18,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:18,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:18,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:19,183 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2022-12-14 03:15:19,183 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:19,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537942571] [2022-12-14 03:15:19,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537942571] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:19,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:19,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 03:15:19,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121880387] [2022-12-14 03:15:19,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:19,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 03:15:19,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:19,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 03:15:19,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:15:19,185 INFO L87 Difference]: Start difference. First operand 10038 states and 14248 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, (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 03:15:25,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:15:27,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:27,345 INFO L93 Difference]: Finished difference Result 10044 states and 14253 transitions. [2022-12-14 03:15:27,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 03:15:27,346 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, (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 187 [2022-12-14 03:15:27,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:27,387 INFO L225 Difference]: With dead ends: 10044 [2022-12-14 03:15:27,387 INFO L226 Difference]: Without dead ends: 10042 [2022-12-14 03:15:27,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:15:27,391 INFO L413 NwaCegarLoop]: 1798 mSDtfsCounter, 2028 mSDsluCounter, 3577 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2037 SdHoareTripleChecker+Valid, 5375 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:27,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2037 Valid, 5375 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 879 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2022-12-14 03:15:27,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10042 states. [2022-12-14 03:15:27,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10042 to 10042. [2022-12-14 03:15:27,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10042 states, 5810 states have (on average 1.2688468158347677) internal successors, (7372), 5998 states have internal predecessors, (7372), 3439 states have call successors, (3439), 809 states have call predecessors, (3439), 790 states have return successors, (3440), 3336 states have call predecessors, (3440), 3435 states have call successors, (3440) [2022-12-14 03:15:27,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10042 states to 10042 states and 14251 transitions. [2022-12-14 03:15:27,807 INFO L78 Accepts]: Start accepts. Automaton has 10042 states and 14251 transitions. Word has length 187 [2022-12-14 03:15:27,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:27,808 INFO L495 AbstractCegarLoop]: Abstraction has 10042 states and 14251 transitions. [2022-12-14 03:15:27,808 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, (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 03:15:27,808 INFO L276 IsEmpty]: Start isEmpty. Operand 10042 states and 14251 transitions. [2022-12-14 03:15:27,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-12-14 03:15:27,810 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:27,811 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 5, 5, 4, 3, 3, 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] [2022-12-14 03:15:27,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 03:15:27,811 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 03:15:27,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:27,811 INFO L85 PathProgramCache]: Analyzing trace with hash -61389624, now seen corresponding path program 1 times [2022-12-14 03:15:27,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:27,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417061023] [2022-12-14 03:15:27,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:27,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:27,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:28,130 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2022-12-14 03:15:28,130 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:28,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417061023] [2022-12-14 03:15:28,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417061023] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:28,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:28,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 03:15:28,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491309716] [2022-12-14 03:15:28,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:28,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 03:15:28,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:28,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 03:15:28,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:15:28,132 INFO L87 Difference]: Start difference. First operand 10042 states and 14251 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, (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 03:15:32,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:15:34,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:15:34,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:34,743 INFO L93 Difference]: Finished difference Result 10048 states and 14256 transitions. [2022-12-14 03:15:34,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 03:15:34,744 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, (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 191 [2022-12-14 03:15:34,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:34,769 INFO L225 Difference]: With dead ends: 10048 [2022-12-14 03:15:34,769 INFO L226 Difference]: Without dead ends: 10046 [2022-12-14 03:15:34,772 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 03:15:34,773 INFO L413 NwaCegarLoop]: 1798 mSDtfsCounter, 2028 mSDsluCounter, 3577 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2036 SdHoareTripleChecker+Valid, 5375 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:34,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2036 Valid, 5375 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-12-14 03:15:34,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10046 states. [2022-12-14 03:15:35,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10046 to 10046. [2022-12-14 03:15:35,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10046 states, 5813 states have (on average 1.2687080681231722) internal successors, (7375), 6001 states have internal predecessors, (7375), 3439 states have call successors, (3439), 810 states have call predecessors, (3439), 791 states have return successors, (3440), 3336 states have call predecessors, (3440), 3435 states have call successors, (3440) [2022-12-14 03:15:35,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10046 states to 10046 states and 14254 transitions. [2022-12-14 03:15:35,276 INFO L78 Accepts]: Start accepts. Automaton has 10046 states and 14254 transitions. Word has length 191 [2022-12-14 03:15:35,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:35,276 INFO L495 AbstractCegarLoop]: Abstraction has 10046 states and 14254 transitions. [2022-12-14 03:15:35,276 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, (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 03:15:35,276 INFO L276 IsEmpty]: Start isEmpty. Operand 10046 states and 14254 transitions. [2022-12-14 03:15:35,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-12-14 03:15:35,279 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:35,279 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:35,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 03:15:35,279 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 03:15:35,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:35,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1074188543, now seen corresponding path program 1 times [2022-12-14 03:15:35,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:35,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528634548] [2022-12-14 03:15:35,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:35,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:35,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:35,541 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2022-12-14 03:15:35,541 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:35,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528634548] [2022-12-14 03:15:35,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528634548] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:35,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:35,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 03:15:35,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500402574] [2022-12-14 03:15:35,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:35,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 03:15:35,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:35,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 03:15:35,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:15:35,543 INFO L87 Difference]: Start difference. First operand 10046 states and 14254 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, (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 03:15:38,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:15:41,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:15:43,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:43,321 INFO L93 Difference]: Finished difference Result 13946 states and 19670 transitions. [2022-12-14 03:15:43,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 03:15:43,322 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, (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 193 [2022-12-14 03:15:43,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:43,369 INFO L225 Difference]: With dead ends: 13946 [2022-12-14 03:15:43,369 INFO L226 Difference]: Without dead ends: 13944 [2022-12-14 03:15:43,373 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 03:15:43,373 INFO L413 NwaCegarLoop]: 2168 mSDtfsCounter, 1428 mSDsluCounter, 6083 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 8251 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:43,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1435 Valid, 8251 Invalid, 1165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1162 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-12-14 03:15:43,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13944 states. [2022-12-14 03:15:44,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13944 to 13938. [2022-12-14 03:15:44,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13938 states, 8016 states have (on average 1.2597305389221556) internal successors, (10098), 8280 states have internal predecessors, (10098), 4784 states have call successors, (4784), 1163 states have call predecessors, (4784), 1135 states have return successors, (4783), 4639 states have call predecessors, (4783), 4776 states have call successors, (4783) [2022-12-14 03:15:44,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13938 states to 13938 states and 19665 transitions. [2022-12-14 03:15:44,084 INFO L78 Accepts]: Start accepts. Automaton has 13938 states and 19665 transitions. Word has length 193 [2022-12-14 03:15:44,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:44,085 INFO L495 AbstractCegarLoop]: Abstraction has 13938 states and 19665 transitions. [2022-12-14 03:15:44,085 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, (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 03:15:44,085 INFO L276 IsEmpty]: Start isEmpty. Operand 13938 states and 19665 transitions. [2022-12-14 03:15:44,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-12-14 03:15:44,088 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:44,088 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 6, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:44,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 03:15:44,088 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 03:15:44,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:44,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1006257947, now seen corresponding path program 1 times [2022-12-14 03:15:44,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:44,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430206611] [2022-12-14 03:15:44,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:44,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:44,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:44,357 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2022-12-14 03:15:44,358 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:44,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430206611] [2022-12-14 03:15:44,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430206611] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:44,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:44,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 03:15:44,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272828428] [2022-12-14 03:15:44,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:44,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 03:15:44,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:44,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 03:15:44,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:15:44,359 INFO L87 Difference]: Start difference. First operand 13938 states and 19665 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, (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 03:15:47,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:15:51,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:51,151 INFO L93 Difference]: Finished difference Result 13948 states and 19674 transitions. [2022-12-14 03:15:51,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 03:15:51,152 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, (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 202 [2022-12-14 03:15:51,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:51,197 INFO L225 Difference]: With dead ends: 13948 [2022-12-14 03:15:51,197 INFO L226 Difference]: Without dead ends: 13946 [2022-12-14 03:15:51,202 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 03:15:51,203 INFO L413 NwaCegarLoop]: 1798 mSDtfsCounter, 2028 mSDsluCounter, 3577 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2034 SdHoareTripleChecker+Valid, 5375 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:51,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2034 Valid, 5375 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-12-14 03:15:51,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13946 states. [2022-12-14 03:15:51,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13946 to 13946. [2022-12-14 03:15:51,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13946 states, 8022 states have (on average 1.2595362752430814) internal successors, (10104), 8286 states have internal predecessors, (10104), 4784 states have call successors, (4784), 1165 states have call predecessors, (4784), 1137 states have return successors, (4783), 4639 states have call predecessors, (4783), 4776 states have call successors, (4783) [2022-12-14 03:15:51,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13946 states to 13946 states and 19671 transitions. [2022-12-14 03:15:51,950 INFO L78 Accepts]: Start accepts. Automaton has 13946 states and 19671 transitions. Word has length 202 [2022-12-14 03:15:51,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:51,950 INFO L495 AbstractCegarLoop]: Abstraction has 13946 states and 19671 transitions. [2022-12-14 03:15:51,950 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, (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 03:15:51,950 INFO L276 IsEmpty]: Start isEmpty. Operand 13946 states and 19671 transitions. [2022-12-14 03:15:51,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-12-14 03:15:51,953 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:51,953 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 7, 6, 6, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:51,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 03:15:51,953 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 03:15:51,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:51,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1358618019, now seen corresponding path program 1 times [2022-12-14 03:15:51,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:51,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819024193] [2022-12-14 03:15:51,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:51,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:51,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:52,198 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 635 trivial. 0 not checked. [2022-12-14 03:15:52,199 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:52,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819024193] [2022-12-14 03:15:52,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819024193] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:52,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:52,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 03:15:52,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104765102] [2022-12-14 03:15:52,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:52,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 03:15:52,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:52,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 03:15:52,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:15:52,201 INFO L87 Difference]: Start difference. First operand 13946 states and 19671 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, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 03:15:55,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:15:57,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:16:01,252 WARN L539 Checker$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 03:16:02,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:02,542 INFO L93 Difference]: Finished difference Result 14502 states and 20152 transitions. [2022-12-14 03:16:02,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 03:16:02,543 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, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 207 [2022-12-14 03:16:02,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:02,576 INFO L225 Difference]: With dead ends: 14502 [2022-12-14 03:16:02,576 INFO L226 Difference]: Without dead ends: 14500 [2022-12-14 03:16:02,581 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 03:16:02,581 INFO L413 NwaCegarLoop]: 1844 mSDtfsCounter, 1817 mSDsluCounter, 3924 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1822 SdHoareTripleChecker+Valid, 5768 SdHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:02,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1822 Valid, 5768 Invalid, 965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 962 Invalid, 1 Unknown, 0 Unchecked, 9.6s Time] [2022-12-14 03:16:02,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14500 states. [2022-12-14 03:16:03,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14500 to 14500. [2022-12-14 03:16:03,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14500 states, 8314 states have (on average 1.251864325234544) internal successors, (10408), 8582 states have internal predecessors, (10408), 4871 states have call successors, (4871), 1340 states have call predecessors, (4871), 1312 states have return successors, (4870), 4726 states have call predecessors, (4870), 4863 states have call successors, (4870) [2022-12-14 03:16:03,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14500 states to 14500 states and 20149 transitions. [2022-12-14 03:16:03,325 INFO L78 Accepts]: Start accepts. Automaton has 14500 states and 20149 transitions. Word has length 207 [2022-12-14 03:16:03,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:03,326 INFO L495 AbstractCegarLoop]: Abstraction has 14500 states and 20149 transitions. [2022-12-14 03:16:03,326 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, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 03:16:03,326 INFO L276 IsEmpty]: Start isEmpty. Operand 14500 states and 20149 transitions. [2022-12-14 03:16:03,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-12-14 03:16:03,328 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:03,328 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 8, 7, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:03,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 03:16:03,329 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 03:16:03,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:03,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1106939207, now seen corresponding path program 1 times [2022-12-14 03:16:03,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:03,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422767952] [2022-12-14 03:16:03,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:03,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:03,539 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2022-12-14 03:16:03,539 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:03,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422767952] [2022-12-14 03:16:03,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422767952] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:03,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:03,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 03:16:03,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180731743] [2022-12-14 03:16:03,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:03,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 03:16:03,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:03,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 03:16:03,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:16:03,541 INFO L87 Difference]: Start difference. First operand 14500 states and 20149 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 03:16:05,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:16:09,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:16:11,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:11,718 INFO L93 Difference]: Finished difference Result 14512 states and 20157 transitions. [2022-12-14 03:16:11,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 03:16:11,720 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 208 [2022-12-14 03:16:11,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:11,753 INFO L225 Difference]: With dead ends: 14512 [2022-12-14 03:16:11,753 INFO L226 Difference]: Without dead ends: 14510 [2022-12-14 03:16:11,758 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 03:16:11,759 INFO L413 NwaCegarLoop]: 2168 mSDtfsCounter, 1428 mSDsluCounter, 6083 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 8251 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:11,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1432 Valid, 8251 Invalid, 1165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1162 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-12-14 03:16:11,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14510 states. [2022-12-14 03:16:12,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14510 to 14504. [2022-12-14 03:16:12,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14504 states, 8317 states have (on average 1.2517734760129855) internal successors, (10411), 8585 states have internal predecessors, (10411), 4871 states have call successors, (4871), 1341 states have call predecessors, (4871), 1313 states have return successors, (4870), 4726 states have call predecessors, (4870), 4863 states have call successors, (4870) [2022-12-14 03:16:12,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14504 states to 14504 states and 20152 transitions. [2022-12-14 03:16:12,495 INFO L78 Accepts]: Start accepts. Automaton has 14504 states and 20152 transitions. Word has length 208 [2022-12-14 03:16:12,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:12,495 INFO L495 AbstractCegarLoop]: Abstraction has 14504 states and 20152 transitions. [2022-12-14 03:16:12,495 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 03:16:12,495 INFO L276 IsEmpty]: Start isEmpty. Operand 14504 states and 20152 transitions. [2022-12-14 03:16:12,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-12-14 03:16:12,498 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:12,498 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 9, 8, 8, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:12,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 03:16:12,499 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 03:16:12,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:12,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1564492125, now seen corresponding path program 1 times [2022-12-14 03:16:12,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:12,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258190780] [2022-12-14 03:16:12,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:12,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:12,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:12,707 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2022-12-14 03:16:12,707 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:12,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258190780] [2022-12-14 03:16:12,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258190780] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:12,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:12,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 03:16:12,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006621919] [2022-12-14 03:16:12,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:12,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 03:16:12,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:12,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 03:16:12,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:16:12,709 INFO L87 Difference]: Start difference. First operand 14504 states and 20152 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 03:16:18,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:16:19,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:19,924 INFO L93 Difference]: Finished difference Result 14516 states and 20160 transitions. [2022-12-14 03:16:19,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 03:16:19,925 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 217 [2022-12-14 03:16:19,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:19,963 INFO L225 Difference]: With dead ends: 14516 [2022-12-14 03:16:19,964 INFO L226 Difference]: Without dead ends: 14514 [2022-12-14 03:16:19,970 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 03:16:19,970 INFO L413 NwaCegarLoop]: 2168 mSDtfsCounter, 1427 mSDsluCounter, 6083 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1430 SdHoareTripleChecker+Valid, 8251 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:19,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1430 Valid, 8251 Invalid, 1165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1162 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-12-14 03:16:19,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14514 states. [2022-12-14 03:16:20,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14514 to 14508. [2022-12-14 03:16:20,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14508 states, 8320 states have (on average 1.2516826923076922) internal successors, (10414), 8588 states have internal predecessors, (10414), 4871 states have call successors, (4871), 1342 states have call predecessors, (4871), 1314 states have return successors, (4870), 4726 states have call predecessors, (4870), 4863 states have call successors, (4870) [2022-12-14 03:16:20,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14508 states to 14508 states and 20155 transitions. [2022-12-14 03:16:20,714 INFO L78 Accepts]: Start accepts. Automaton has 14508 states and 20155 transitions. Word has length 217 [2022-12-14 03:16:20,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:20,714 INFO L495 AbstractCegarLoop]: Abstraction has 14508 states and 20155 transitions. [2022-12-14 03:16:20,715 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 03:16:20,715 INFO L276 IsEmpty]: Start isEmpty. Operand 14508 states and 20155 transitions. [2022-12-14 03:16:20,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-12-14 03:16:20,717 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:20,718 INFO L195 NwaCegarLoop]: trace histogram [17, 11, 11, 11, 11, 11, 11, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:20,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 03:16:20,718 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 03:16:20,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:20,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1898963319, now seen corresponding path program 1 times [2022-12-14 03:16:20,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:20,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162268543] [2022-12-14 03:16:20,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:20,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:20,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:20,855 INFO L134 CoverageAnalysis]: Checked inductivity of 637 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 622 trivial. 0 not checked. [2022-12-14 03:16:20,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:20,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162268543] [2022-12-14 03:16:20,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162268543] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:20,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:20,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 03:16:20,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389798996] [2022-12-14 03:16:20,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:20,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 03:16:20,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:20,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 03:16:20,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:16:20,857 INFO L87 Difference]: Start difference. First operand 14508 states and 20155 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-12-14 03:16:25,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:16:27,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:27,138 INFO L93 Difference]: Finished difference Result 32123 states and 44631 transitions. [2022-12-14 03:16:27,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 03:16:27,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 214 [2022-12-14 03:16:27,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:27,184 INFO L225 Difference]: With dead ends: 32123 [2022-12-14 03:16:27,184 INFO L226 Difference]: Without dead ends: 17935 [2022-12-14 03:16:27,217 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 03:16:27,218 INFO L413 NwaCegarLoop]: 2708 mSDtfsCounter, 1142 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 4468 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:27,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1142 Valid, 4468 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-12-14 03:16:27,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17935 states. [2022-12-14 03:16:28,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17935 to 17823. [2022-12-14 03:16:28,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17823 states, 10269 states have (on average 1.2517285032622456) internal successors, (12854), 10593 states have internal predecessors, (12854), 5927 states have call successors, (5927), 1658 states have call predecessors, (5927), 1624 states have return successors, (5926), 5748 states have call predecessors, (5926), 5919 states have call successors, (5926) [2022-12-14 03:16:28,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17823 states to 17823 states and 24707 transitions. [2022-12-14 03:16:28,289 INFO L78 Accepts]: Start accepts. Automaton has 17823 states and 24707 transitions. Word has length 214 [2022-12-14 03:16:28,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:28,290 INFO L495 AbstractCegarLoop]: Abstraction has 17823 states and 24707 transitions. [2022-12-14 03:16:28,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-12-14 03:16:28,290 INFO L276 IsEmpty]: Start isEmpty. Operand 17823 states and 24707 transitions. [2022-12-14 03:16:28,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-12-14 03:16:28,292 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:28,292 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 10, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:28,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 03:16:28,292 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 03:16:28,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:28,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1793853767, now seen corresponding path program 1 times [2022-12-14 03:16:28,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:28,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629622198] [2022-12-14 03:16:28,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:28,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:28,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:28,517 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 711 trivial. 0 not checked. [2022-12-14 03:16:28,517 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:28,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629622198] [2022-12-14 03:16:28,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629622198] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:28,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:28,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 03:16:28,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664002480] [2022-12-14 03:16:28,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:28,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 03:16:28,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:28,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 03:16:28,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:16:28,519 INFO L87 Difference]: Start difference. First operand 17823 states and 24707 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 03:16:30,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:16:35,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:16:37,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:16:38,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:38,200 INFO L93 Difference]: Finished difference Result 17833 states and 24716 transitions. [2022-12-14 03:16:38,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 03:16:38,201 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 218 [2022-12-14 03:16:38,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:38,246 INFO L225 Difference]: With dead ends: 17833 [2022-12-14 03:16:38,246 INFO L226 Difference]: Without dead ends: 17831 [2022-12-14 03:16:38,254 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 03:16:38,254 INFO L413 NwaCegarLoop]: 1798 mSDtfsCounter, 2029 mSDsluCounter, 3577 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2031 SdHoareTripleChecker+Valid, 5375 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:38,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2031 Valid, 5375 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 879 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2022-12-14 03:16:38,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17831 states. [2022-12-14 03:16:39,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17831 to 17831. [2022-12-14 03:16:39,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17831 states, 10275 states have (on average 1.251581508515815) internal successors, (12860), 10599 states have internal predecessors, (12860), 5927 states have call successors, (5927), 1660 states have call predecessors, (5927), 1626 states have return successors, (5926), 5748 states have call predecessors, (5926), 5919 states have call successors, (5926) [2022-12-14 03:16:39,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17831 states to 17831 states and 24713 transitions. [2022-12-14 03:16:39,249 INFO L78 Accepts]: Start accepts. Automaton has 17831 states and 24713 transitions. Word has length 218 [2022-12-14 03:16:39,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:39,249 INFO L495 AbstractCegarLoop]: Abstraction has 17831 states and 24713 transitions. [2022-12-14 03:16:39,249 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 03:16:39,249 INFO L276 IsEmpty]: Start isEmpty. Operand 17831 states and 24713 transitions. [2022-12-14 03:16:39,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-12-14 03:16:39,251 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:39,251 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 11, 10, 10, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:39,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 03:16:39,251 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 03:16:39,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:39,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1212595616, now seen corresponding path program 1 times [2022-12-14 03:16:39,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:39,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018440319] [2022-12-14 03:16:39,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:39,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:39,466 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 754 trivial. 0 not checked. [2022-12-14 03:16:39,467 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:39,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018440319] [2022-12-14 03:16:39,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018440319] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:39,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:39,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 03:16:39,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68695250] [2022-12-14 03:16:39,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:39,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 03:16:39,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:39,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 03:16:39,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:16:39,469 INFO L87 Difference]: Start difference. First operand 17831 states and 24713 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 03:16:43,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:16:45,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:16:47,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:47,153 INFO L93 Difference]: Finished difference Result 17841 states and 24722 transitions. [2022-12-14 03:16:47,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 03:16:47,154 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 226 [2022-12-14 03:16:47,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:47,199 INFO L225 Difference]: With dead ends: 17841 [2022-12-14 03:16:47,200 INFO L226 Difference]: Without dead ends: 17837 [2022-12-14 03:16:47,206 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 03:16:47,207 INFO L413 NwaCegarLoop]: 1798 mSDtfsCounter, 2028 mSDsluCounter, 3577 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2029 SdHoareTripleChecker+Valid, 5375 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:47,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2029 Valid, 5375 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 879 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-12-14 03:16:47,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17837 states. [2022-12-14 03:16:48,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17837 to 17837. [2022-12-14 03:16:48,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17837 states, 10280 states have (on average 1.2513618677042802) internal successors, (12864), 10603 states have internal predecessors, (12864), 5927 states have call successors, (5927), 1662 states have call predecessors, (5927), 1627 states have return successors, (5926), 5748 states have call predecessors, (5926), 5919 states have call successors, (5926) [2022-12-14 03:16:48,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17837 states to 17837 states and 24717 transitions. [2022-12-14 03:16:48,251 INFO L78 Accepts]: Start accepts. Automaton has 17837 states and 24717 transitions. Word has length 226 [2022-12-14 03:16:48,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:48,251 INFO L495 AbstractCegarLoop]: Abstraction has 17837 states and 24717 transitions. [2022-12-14 03:16:48,251 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 03:16:48,251 INFO L276 IsEmpty]: Start isEmpty. Operand 17837 states and 24717 transitions. [2022-12-14 03:16:48,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-12-14 03:16:48,253 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:48,253 INFO L195 NwaCegarLoop]: trace histogram [15, 12, 11, 11, 11, 11, 11, 11, 11, 11, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:48,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 03:16:48,253 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 03:16:48,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:48,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1012648633, now seen corresponding path program 1 times [2022-12-14 03:16:48,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:48,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928367598] [2022-12-14 03:16:48,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:48,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:48,453 INFO L134 CoverageAnalysis]: Checked inductivity of 809 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 787 trivial. 0 not checked. [2022-12-14 03:16:48,453 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:48,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928367598] [2022-12-14 03:16:48,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928367598] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:48,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:48,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 03:16:48,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608430798] [2022-12-14 03:16:48,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:48,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 03:16:48,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:48,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 03:16:48,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:16:48,455 INFO L87 Difference]: Start difference. First operand 17837 states and 24717 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 03:16:51,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:16:54,810 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 03:16:57,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:57,501 INFO L93 Difference]: Finished difference Result 17843 states and 24720 transitions. [2022-12-14 03:16:57,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 03:16:57,503 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 228 [2022-12-14 03:16:57,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:57,541 INFO L225 Difference]: With dead ends: 17843 [2022-12-14 03:16:57,541 INFO L226 Difference]: Without dead ends: 17720 [2022-12-14 03:16:57,546 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 03:16:57,546 INFO L413 NwaCegarLoop]: 2168 mSDtfsCounter, 1424 mSDsluCounter, 6085 mSDsCounter, 0 mSdLazyCounter, 1158 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1424 SdHoareTripleChecker+Valid, 8253 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1158 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:57,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1424 Valid, 8253 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1158 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2022-12-14 03:16:57,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17720 states. [2022-12-14 03:16:58,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17720 to 17716. [2022-12-14 03:16:58,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17716 states, 10235 states have (on average 1.2501221299462628) internal successors, (12795), 10535 states have internal predecessors, (12795), 5864 states have call successors, (5864), 1641 states have call predecessors, (5864), 1614 states have return successors, (5867), 5716 states have call predecessors, (5867), 5860 states have call successors, (5867) [2022-12-14 03:16:58,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17716 states to 17716 states and 24526 transitions. [2022-12-14 03:16:58,600 INFO L78 Accepts]: Start accepts. Automaton has 17716 states and 24526 transitions. Word has length 228 [2022-12-14 03:16:58,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:58,600 INFO L495 AbstractCegarLoop]: Abstraction has 17716 states and 24526 transitions. [2022-12-14 03:16:58,600 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 03:16:58,600 INFO L276 IsEmpty]: Start isEmpty. Operand 17716 states and 24526 transitions. [2022-12-14 03:16:58,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-12-14 03:16:58,604 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:58,604 INFO L195 NwaCegarLoop]: trace histogram [19, 11, 11, 11, 11, 11, 11, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:58,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 03:16:58,604 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 03:16:58,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:58,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1264304878, now seen corresponding path program 1 times [2022-12-14 03:16:58,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:58,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943190746] [2022-12-14 03:16:58,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:58,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:58,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:59,144 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2022-12-14 03:16:59,144 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:59,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943190746] [2022-12-14 03:16:59,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943190746] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:59,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:59,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 03:16:59,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185505776] [2022-12-14 03:16:59,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:59,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 03:16:59,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:59,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 03:16:59,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:16:59,146 INFO L87 Difference]: Start difference. First operand 17716 states and 24526 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 03:17:02,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:17:06,747 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 03:17:09,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:09,075 INFO L93 Difference]: Finished difference Result 27005 states and 37776 transitions. [2022-12-14 03:17:09,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 03:17:09,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 276 [2022-12-14 03:17:09,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:09,156 INFO L225 Difference]: With dead ends: 27005 [2022-12-14 03:17:09,157 INFO L226 Difference]: Without dead ends: 27003 [2022-12-14 03:17:09,169 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 03:17:09,169 INFO L413 NwaCegarLoop]: 2364 mSDtfsCounter, 1491 mSDsluCounter, 6470 mSDsCounter, 0 mSdLazyCounter, 1362 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 8834 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1362 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:09,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 8834 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1362 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2022-12-14 03:17:09,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27003 states. [2022-12-14 03:17:10,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27003 to 26937. [2022-12-14 03:17:10,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26937 states, 15565 states have (on average 1.257243816254417) internal successors, (19569), 16067 states have internal predecessors, (19569), 9054 states have call successors, (9054), 2418 states have call predecessors, (9054), 2315 states have return successors, (9066), 8699 states have call predecessors, (9066), 9050 states have call successors, (9066) [2022-12-14 03:17:10,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26937 states to 26937 states and 37689 transitions. [2022-12-14 03:17:10,778 INFO L78 Accepts]: Start accepts. Automaton has 26937 states and 37689 transitions. Word has length 276 [2022-12-14 03:17:10,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:10,779 INFO L495 AbstractCegarLoop]: Abstraction has 26937 states and 37689 transitions. [2022-12-14 03:17:10,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 03:17:10,779 INFO L276 IsEmpty]: Start isEmpty. Operand 26937 states and 37689 transitions. [2022-12-14 03:17:10,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-12-14 03:17:10,784 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:10,784 INFO L195 NwaCegarLoop]: trace histogram [19, 11, 11, 11, 11, 11, 11, 9, 9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:17:10,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 03:17:10,784 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 03:17:10,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:10,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1530479447, now seen corresponding path program 1 times [2022-12-14 03:17:10,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:10,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557459839] [2022-12-14 03:17:10,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:10,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:10,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:11,060 INFO L134 CoverageAnalysis]: Checked inductivity of 829 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 829 trivial. 0 not checked. [2022-12-14 03:17:11,060 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:11,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557459839] [2022-12-14 03:17:11,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557459839] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:11,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:11,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 03:17:11,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539708295] [2022-12-14 03:17:11,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:11,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 03:17:11,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:11,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 03:17:11,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:17:11,062 INFO L87 Difference]: Start difference. First operand 26937 states and 37689 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-14 03:17:16,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:17:18,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:17:20,491 WARN L539 Checker$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 03:17:22,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:22,173 INFO L93 Difference]: Finished difference Result 26937 states and 37689 transitions. [2022-12-14 03:17:22,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 03:17:22,174 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 297 [2022-12-14 03:17:22,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:22,254 INFO L225 Difference]: With dead ends: 26937 [2022-12-14 03:17:22,254 INFO L226 Difference]: Without dead ends: 26935 [2022-12-14 03:17:22,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 03:17:22,266 INFO L413 NwaCegarLoop]: 1841 mSDtfsCounter, 297 mSDsluCounter, 5294 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 7135 SdHoareTripleChecker+Invalid, 1162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:22,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 7135 Invalid, 1162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1160 Invalid, 2 Unknown, 0 Unchecked, 9.6s Time] [2022-12-14 03:17:22,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26935 states. [2022-12-14 03:17:23,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26935 to 26935. [2022-12-14 03:17:23,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26935 states, 15564 states have (on average 1.2561038293497815) internal successors, (19550), 16065 states have internal predecessors, (19550), 9054 states have call successors, (9054), 2418 states have call predecessors, (9054), 2315 states have return successors, (9066), 8699 states have call predecessors, (9066), 9050 states have call successors, (9066) [2022-12-14 03:17:23,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26935 states to 26935 states and 37670 transitions. [2022-12-14 03:17:23,897 INFO L78 Accepts]: Start accepts. Automaton has 26935 states and 37670 transitions. Word has length 297 [2022-12-14 03:17:23,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:23,897 INFO L495 AbstractCegarLoop]: Abstraction has 26935 states and 37670 transitions. [2022-12-14 03:17:23,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-14 03:17:23,897 INFO L276 IsEmpty]: Start isEmpty. Operand 26935 states and 37670 transitions. [2022-12-14 03:17:23,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2022-12-14 03:17:23,911 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:23,912 INFO L195 NwaCegarLoop]: trace histogram [24, 14, 14, 14, 14, 14, 14, 13, 13, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:17:23,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 03:17:23,912 INFO L420 AbstractCegarLoop]: === Iteration 20 === 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 03:17:23,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:23,912 INFO L85 PathProgramCache]: Analyzing trace with hash 2076173048, now seen corresponding path program 1 times [2022-12-14 03:17:23,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:23,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833490934] [2022-12-14 03:17:23,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:23,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:24,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:24,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1413 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2022-12-14 03:17:24,272 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:24,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833490934] [2022-12-14 03:17:24,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833490934] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:24,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:24,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 03:17:24,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387317898] [2022-12-14 03:17:24,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:24,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 03:17:24,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:24,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 03:17:24,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:17:24,275 INFO L87 Difference]: Start difference. First operand 26935 states and 37670 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-12-14 03:17:30,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:30,318 INFO L93 Difference]: Finished difference Result 56452 states and 80594 transitions. [2022-12-14 03:17:30,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 03:17:30,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 436 [2022-12-14 03:17:30,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:30,432 INFO L225 Difference]: With dead ends: 56452 [2022-12-14 03:17:30,432 INFO L226 Difference]: Without dead ends: 34597 [2022-12-14 03:17:30,496 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 03:17:30,497 INFO L413 NwaCegarLoop]: 2525 mSDtfsCounter, 480 mSDsluCounter, 1988 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 4513 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:30,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [685 Valid, 4513 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-12-14 03:17:30,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34597 states. [2022-12-14 03:17:32,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34597 to 26937. [2022-12-14 03:17:32,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26937 states, 15566 states have (on average 1.2560709238083) internal successors, (19552), 16067 states have internal predecessors, (19552), 9054 states have call successors, (9054), 2418 states have call predecessors, (9054), 2315 states have return successors, (9066), 8699 states have call predecessors, (9066), 9050 states have call successors, (9066) [2022-12-14 03:17:32,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26937 states to 26937 states and 37672 transitions. [2022-12-14 03:17:32,654 INFO L78 Accepts]: Start accepts. Automaton has 26937 states and 37672 transitions. Word has length 436 [2022-12-14 03:17:32,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:32,655 INFO L495 AbstractCegarLoop]: Abstraction has 26937 states and 37672 transitions. [2022-12-14 03:17:32,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-12-14 03:17:32,655 INFO L276 IsEmpty]: Start isEmpty. Operand 26937 states and 37672 transitions. [2022-12-14 03:17:32,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2022-12-14 03:17:32,670 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:32,670 INFO L195 NwaCegarLoop]: trace histogram [25, 15, 15, 15, 15, 15, 15, 13, 13, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-14 03:17:32,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 03:17:32,671 INFO L420 AbstractCegarLoop]: === Iteration 21 === 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 03:17:32,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:32,671 INFO L85 PathProgramCache]: Analyzing trace with hash -88768871, now seen corresponding path program 1 times [2022-12-14 03:17:32,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:32,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415894349] [2022-12-14 03:17:32,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:32,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:32,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:32,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1545 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1533 trivial. 0 not checked. [2022-12-14 03:17:32,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:32,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415894349] [2022-12-14 03:17:32,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415894349] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:32,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:32,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 03:17:32,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689929948] [2022-12-14 03:17:32,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:32,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 03:17:32,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:32,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 03:17:32,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:17:32,932 INFO L87 Difference]: Start difference. First operand 26937 states and 37672 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-12-14 03:17:34,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:17:38,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:17:42,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:42,343 INFO L93 Difference]: Finished difference Result 56438 states and 80568 transitions. [2022-12-14 03:17:42,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 03:17:42,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 442 [2022-12-14 03:17:42,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:42,472 INFO L225 Difference]: With dead ends: 56438 [2022-12-14 03:17:42,472 INFO L226 Difference]: Without dead ends: 34581 [2022-12-14 03:17:42,543 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 03:17:42,543 INFO L413 NwaCegarLoop]: 2404 mSDtfsCounter, 478 mSDsluCounter, 1932 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 4336 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:42,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 4336 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 679 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-12-14 03:17:42,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34581 states. [2022-12-14 03:17:44,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34581 to 26939. [2022-12-14 03:17:44,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26939 states, 15568 states have (on average 1.25603802672148) internal successors, (19554), 16069 states have internal predecessors, (19554), 9054 states have call successors, (9054), 2418 states have call predecessors, (9054), 2315 states have return successors, (9066), 8699 states have call predecessors, (9066), 9050 states have call successors, (9066) [2022-12-14 03:17:44,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26939 states to 26939 states and 37674 transitions. [2022-12-14 03:17:44,902 INFO L78 Accepts]: Start accepts. Automaton has 26939 states and 37674 transitions. Word has length 442 [2022-12-14 03:17:44,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:44,903 INFO L495 AbstractCegarLoop]: Abstraction has 26939 states and 37674 transitions. [2022-12-14 03:17:44,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-12-14 03:17:44,903 INFO L276 IsEmpty]: Start isEmpty. Operand 26939 states and 37674 transitions. [2022-12-14 03:17:44,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2022-12-14 03:17:44,918 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:44,918 INFO L195 NwaCegarLoop]: trace histogram [24, 14, 14, 14, 14, 14, 14, 13, 13, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-14 03:17:44,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 03:17:44,918 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 03:17:44,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:44,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1253628444, now seen corresponding path program 1 times [2022-12-14 03:17:44,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:44,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836513527] [2022-12-14 03:17:44,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:44,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:45,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:45,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1403 trivial. 0 not checked. [2022-12-14 03:17:45,221 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:45,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836513527] [2022-12-14 03:17:45,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836513527] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:45,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:45,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 03:17:45,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429311240] [2022-12-14 03:17:45,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:45,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 03:17:45,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:45,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 03:17:45,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:17:45,224 INFO L87 Difference]: Start difference. First operand 26939 states and 37674 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-12-14 03:17:46,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:17:50,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:17:52,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:52,129 INFO L93 Difference]: Finished difference Result 48804 states and 68462 transitions. [2022-12-14 03:17:52,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 03:17:52,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 442 [2022-12-14 03:17:52,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:52,279 INFO L225 Difference]: With dead ends: 48804 [2022-12-14 03:17:52,279 INFO L226 Difference]: Without dead ends: 26945 [2022-12-14 03:17:52,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:17:52,324 INFO L413 NwaCegarLoop]: 1795 mSDtfsCounter, 1 mSDsluCounter, 1790 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3585 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:52,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3585 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 580 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-12-14 03:17:52,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26945 states. [2022-12-14 03:17:54,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26945 to 26941. [2022-12-14 03:17:54,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26941 states, 15570 states have (on average 1.2560051380860628) internal successors, (19556), 16071 states have internal predecessors, (19556), 9054 states have call successors, (9054), 2418 states have call predecessors, (9054), 2315 states have return successors, (9066), 8699 states have call predecessors, (9066), 9050 states have call successors, (9066) [2022-12-14 03:17:54,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26941 states to 26941 states and 37676 transitions. [2022-12-14 03:17:54,352 INFO L78 Accepts]: Start accepts. Automaton has 26941 states and 37676 transitions. Word has length 442 [2022-12-14 03:17:54,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:54,353 INFO L495 AbstractCegarLoop]: Abstraction has 26941 states and 37676 transitions. [2022-12-14 03:17:54,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-12-14 03:17:54,353 INFO L276 IsEmpty]: Start isEmpty. Operand 26941 states and 37676 transitions. [2022-12-14 03:17:54,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2022-12-14 03:17:54,416 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:54,416 INFO L195 NwaCegarLoop]: trace histogram [24, 14, 14, 14, 14, 14, 14, 13, 13, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-14 03:17:54,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 03:17:54,416 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 03:17:54,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:54,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1579003222, now seen corresponding path program 1 times [2022-12-14 03:17:54,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:54,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296224569] [2022-12-14 03:17:54,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:54,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:54,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 1403 trivial. 0 not checked. [2022-12-14 03:17:54,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:54,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296224569] [2022-12-14 03:17:54,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296224569] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 03:17:54,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755388910] [2022-12-14 03:17:54,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:54,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:17:54,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:17:54,751 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:17:54,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 03:17:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:55,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 4152 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 03:17:55,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:17:55,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 490 proven. 0 refuted. 0 times theorem prover too weak. 926 trivial. 0 not checked. [2022-12-14 03:17:55,867 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 03:17:55,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755388910] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:55,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 03:17:55,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-12-14 03:17:55,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122601060] [2022-12-14 03:17:55,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:55,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 03:17:55,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:55,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 03:17:55,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:17:55,869 INFO L87 Difference]: Start difference. First operand 26941 states and 37676 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 3 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2022-12-14 03:17:59,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:18:02,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:18:05,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:18:05,817 INFO L93 Difference]: Finished difference Result 59429 states and 83514 transitions. [2022-12-14 03:18:05,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 03:18:05,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 3 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) Word has length 442 [2022-12-14 03:18:05,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:18:05,952 INFO L225 Difference]: With dead ends: 59429 [2022-12-14 03:18:05,953 INFO L226 Difference]: Without dead ends: 37568 [2022-12-14 03:18:06,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 442 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:18:06,022 INFO L413 NwaCegarLoop]: 2308 mSDtfsCounter, 1822 mSDsluCounter, 1744 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1822 SdHoareTripleChecker+Valid, 4052 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-12-14 03:18:06,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1822 Valid, 4052 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 576 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-12-14 03:18:06,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37568 states. [2022-12-14 03:18:08,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37568 to 37498. [2022-12-14 03:18:08,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37498 states, 21690 states have (on average 1.259151682803135) internal successors, (27311), 22406 states have internal predecessors, (27311), 12640 states have call successors, (12640), 3321 states have call predecessors, (12640), 3166 states have return successors, (12664), 12112 states have call predecessors, (12664), 12636 states have call successors, (12664) [2022-12-14 03:18:09,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37498 states to 37498 states and 52615 transitions. [2022-12-14 03:18:09,034 INFO L78 Accepts]: Start accepts. Automaton has 37498 states and 52615 transitions. Word has length 442 [2022-12-14 03:18:09,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:18:09,035 INFO L495 AbstractCegarLoop]: Abstraction has 37498 states and 52615 transitions. [2022-12-14 03:18:09,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 3 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2022-12-14 03:18:09,035 INFO L276 IsEmpty]: Start isEmpty. Operand 37498 states and 52615 transitions. [2022-12-14 03:18:09,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2022-12-14 03:18:09,051 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:18:09,051 INFO L195 NwaCegarLoop]: trace histogram [24, 15, 15, 14, 14, 14, 14, 14, 14, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-14 03:18:09,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 03:18:09,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-12-14 03:18:09,253 INFO L420 AbstractCegarLoop]: === Iteration 24 === 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 03:18:09,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:18:09,253 INFO L85 PathProgramCache]: Analyzing trace with hash -464371163, now seen corresponding path program 1 times [2022-12-14 03:18:09,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:18:09,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359952489] [2022-12-14 03:18:09,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:18:09,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:18:09,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:18:09,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1523 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 1502 trivial. 0 not checked. [2022-12-14 03:18:09,651 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:18:09,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359952489] [2022-12-14 03:18:09,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359952489] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 03:18:09,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140694608] [2022-12-14 03:18:09,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:18:09,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:18:09,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:18:09,652 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:18:09,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 03:18:10,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:18:10,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 4180 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 03:18:10,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:18:10,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1523 backedges. 388 proven. 0 refuted. 0 times theorem prover too weak. 1135 trivial. 0 not checked. [2022-12-14 03:18:10,689 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 03:18:10,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140694608] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:18:10,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 03:18:10,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-12-14 03:18:10,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579106967] [2022-12-14 03:18:10,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:18:10,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 03:18:10,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:18:10,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 03:18:10,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:18:10,691 INFO L87 Difference]: Start difference. First operand 37498 states and 52615 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-12-14 03:18:12,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:18:16,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:18:20,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:18:22,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:18:22,685 INFO L93 Difference]: Finished difference Result 81371 states and 116479 transitions. [2022-12-14 03:18:22,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 03:18:22,686 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 462 [2022-12-14 03:18:22,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:18:22,849 INFO L225 Difference]: With dead ends: 81371 [2022-12-14 03:18:22,849 INFO L226 Difference]: Without dead ends: 48953 [2022-12-14 03:18:22,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 462 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:18:22,958 INFO L413 NwaCegarLoop]: 2500 mSDtfsCounter, 452 mSDsluCounter, 1981 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 4481 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-12-14 03:18:22,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 4481 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 702 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2022-12-14 03:18:22,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48953 states. [2022-12-14 03:18:26,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48953 to 37502. [2022-12-14 03:18:26,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37502 states, 21694 states have (on average 1.2591038996957684) internal successors, (27315), 22410 states have internal predecessors, (27315), 12640 states have call successors, (12640), 3321 states have call predecessors, (12640), 3166 states have return successors, (12664), 12112 states have call predecessors, (12664), 12636 states have call successors, (12664) [2022-12-14 03:18:26,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37502 states to 37502 states and 52619 transitions. [2022-12-14 03:18:26,288 INFO L78 Accepts]: Start accepts. Automaton has 37502 states and 52619 transitions. Word has length 462 [2022-12-14 03:18:26,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:18:26,289 INFO L495 AbstractCegarLoop]: Abstraction has 37502 states and 52619 transitions. [2022-12-14 03:18:26,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-12-14 03:18:26,289 INFO L276 IsEmpty]: Start isEmpty. Operand 37502 states and 52619 transitions. [2022-12-14 03:18:26,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2022-12-14 03:18:26,305 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:18:26,305 INFO L195 NwaCegarLoop]: trace histogram [24, 14, 14, 14, 14, 14, 14, 14, 14, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:18:26,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 03:18:26,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-12-14 03:18:26,508 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 03:18:26,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:18:26,509 INFO L85 PathProgramCache]: Analyzing trace with hash -569230264, now seen corresponding path program 1 times [2022-12-14 03:18:26,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:18:26,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173479666] [2022-12-14 03:18:26,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:18:26,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:18:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:18:26,856 INFO L134 CoverageAnalysis]: Checked inductivity of 1486 backedges. 24 proven. 1 refuted. 0 times theorem prover too weak. 1461 trivial. 0 not checked. [2022-12-14 03:18:26,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:18:26,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173479666] [2022-12-14 03:18:26,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173479666] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 03:18:26,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379111905] [2022-12-14 03:18:26,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:18:26,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:18:26,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:18:26,857 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:18:26,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 03:18:27,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:18:27,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 4111 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 03:18:27,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:18:27,981 INFO L134 CoverageAnalysis]: Checked inductivity of 1486 backedges. 360 proven. 0 refuted. 0 times theorem prover too weak. 1126 trivial. 0 not checked. [2022-12-14 03:18:27,981 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 03:18:27,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379111905] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:18:27,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 03:18:27,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-12-14 03:18:27,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786044725] [2022-12-14 03:18:27,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:18:27,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 03:18:27,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:18:27,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 03:18:27,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:18:27,984 INFO L87 Difference]: Start difference. First operand 37502 states and 52619 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2022-12-14 03:18:30,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:18:31,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:18:34,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:18:39,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:18:39,264 INFO L93 Difference]: Finished difference Result 81175 states and 116163 transitions. [2022-12-14 03:18:39,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 03:18:39,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 462 [2022-12-14 03:18:39,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:18:39,461 INFO L225 Difference]: With dead ends: 81175 [2022-12-14 03:18:39,461 INFO L226 Difference]: Without dead ends: 48753 [2022-12-14 03:18:39,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 462 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:18:39,545 INFO L413 NwaCegarLoop]: 2413 mSDtfsCounter, 412 mSDsluCounter, 1958 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 4371 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-12-14 03:18:39,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 4371 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 692 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-12-14 03:18:39,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48753 states. [2022-12-14 03:18:42,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48753 to 37506. [2022-12-14 03:18:42,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37506 states, 21698 states have (on average 1.2590561342059177) internal successors, (27319), 22414 states have internal predecessors, (27319), 12640 states have call successors, (12640), 3321 states have call predecessors, (12640), 3166 states have return successors, (12664), 12112 states have call predecessors, (12664), 12636 states have call successors, (12664) [2022-12-14 03:18:42,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37506 states to 37506 states and 52623 transitions. [2022-12-14 03:18:42,983 INFO L78 Accepts]: Start accepts. Automaton has 37506 states and 52623 transitions. Word has length 462 [2022-12-14 03:18:42,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:18:42,983 INFO L495 AbstractCegarLoop]: Abstraction has 37506 states and 52623 transitions. [2022-12-14 03:18:42,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2022-12-14 03:18:42,983 INFO L276 IsEmpty]: Start isEmpty. Operand 37506 states and 52623 transitions. [2022-12-14 03:18:43,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2022-12-14 03:18:43,001 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:18:43,001 INFO L195 NwaCegarLoop]: trace histogram [24, 15, 15, 14, 14, 14, 14, 14, 14, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-14 03:18:43,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 03:18:43,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-12-14 03:18:43,203 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 03:18:43,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:18:43,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1916876727, now seen corresponding path program 1 times [2022-12-14 03:18:43,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:18:43,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996529656] [2022-12-14 03:18:43,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:18:43,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:18:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:18:43,590 INFO L134 CoverageAnalysis]: Checked inductivity of 1552 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 1532 trivial. 0 not checked. [2022-12-14 03:18:43,590 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:18:43,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996529656] [2022-12-14 03:18:43,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996529656] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 03:18:43,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94255214] [2022-12-14 03:18:43,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:18:43,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:18:43,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:18:43,592 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:18:43,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 03:18:44,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:18:44,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 4355 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 03:18:44,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:18:44,519 INFO L134 CoverageAnalysis]: Checked inductivity of 1552 backedges. 403 proven. 0 refuted. 0 times theorem prover too weak. 1149 trivial. 0 not checked. [2022-12-14 03:18:44,520 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 03:18:44,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94255214] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:18:44,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 03:18:44,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-12-14 03:18:44,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810029878] [2022-12-14 03:18:44,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:18:44,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 03:18:44,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:18:44,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 03:18:44,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:18:44,522 INFO L87 Difference]: Start difference. First operand 37506 states and 52623 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 2 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2022-12-14 03:18:46,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:18:49,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:18:53,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:18:53,203 INFO L93 Difference]: Finished difference Result 75370 states and 108049 transitions. [2022-12-14 03:18:53,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 03:18:53,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 2 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) Word has length 499 [2022-12-14 03:18:53,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:18:53,351 INFO L225 Difference]: With dead ends: 75370 [2022-12-14 03:18:53,351 INFO L226 Difference]: Without dead ends: 37905 [2022-12-14 03:18:53,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 499 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:18:53,499 INFO L413 NwaCegarLoop]: 1798 mSDtfsCounter, 2 mSDsluCounter, 1793 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3591 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-12-14 03:18:53,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3591 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 576 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-12-14 03:18:53,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37905 states. [2022-12-14 03:18:56,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37905 to 37563. [2022-12-14 03:18:56,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37563 states, 21755 states have (on average 1.2583773845093082) internal successors, (27376), 22471 states have internal predecessors, (27376), 12640 states have call successors, (12640), 3321 states have call predecessors, (12640), 3166 states have return successors, (12664), 12112 states have call predecessors, (12664), 12636 states have call successors, (12664) [2022-12-14 03:18:56,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37563 states to 37563 states and 52680 transitions. [2022-12-14 03:18:56,846 INFO L78 Accepts]: Start accepts. Automaton has 37563 states and 52680 transitions. Word has length 499 [2022-12-14 03:18:56,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:18:56,846 INFO L495 AbstractCegarLoop]: Abstraction has 37563 states and 52680 transitions. [2022-12-14 03:18:56,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 2 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2022-12-14 03:18:56,846 INFO L276 IsEmpty]: Start isEmpty. Operand 37563 states and 52680 transitions. [2022-12-14 03:18:56,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2022-12-14 03:18:56,864 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:18:56,864 INFO L195 NwaCegarLoop]: trace histogram [24, 15, 15, 14, 14, 14, 14, 14, 14, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-14 03:18:56,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 03:18:57,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-12-14 03:18:57,066 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 03:18:57,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:18:57,068 INFO L85 PathProgramCache]: Analyzing trace with hash 415071533, now seen corresponding path program 1 times [2022-12-14 03:18:57,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:18:57,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236467276] [2022-12-14 03:18:57,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:18:57,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:18:57,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:18:57,428 INFO L134 CoverageAnalysis]: Checked inductivity of 1589 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2022-12-14 03:18:57,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:18:57,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236467276] [2022-12-14 03:18:57,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236467276] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 03:18:57,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670699109] [2022-12-14 03:18:57,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:18:57,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:18:57,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:18:57,430 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:18:57,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 03:18:58,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:18:58,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 4417 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 03:18:58,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:18:58,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1589 backedges. 407 proven. 0 refuted. 0 times theorem prover too weak. 1182 trivial. 0 not checked. [2022-12-14 03:18:58,330 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 03:18:58,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670699109] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:18:58,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 03:18:58,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-12-14 03:18:58,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333641873] [2022-12-14 03:18:58,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:18:58,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 03:18:58,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:18:58,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 03:18:58,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:18:58,331 INFO L87 Difference]: Start difference. First operand 37563 states and 52680 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 2 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2022-12-14 03:18:59,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:19:01,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:19:03,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:19:04,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 03:19:07,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:19:07,815 INFO L93 Difference]: Finished difference Result 75997 states and 108361 transitions. [2022-12-14 03:19:07,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 03:19:07,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 2 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) Word has length 514 [2022-12-14 03:19:07,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:19:07,965 INFO L225 Difference]: With dead ends: 75997 [2022-12-14 03:19:07,966 INFO L226 Difference]: Without dead ends: 38475 [2022-12-14 03:19:08,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 514 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:19:08,085 INFO L413 NwaCegarLoop]: 1802 mSDtfsCounter, 5 mSDsluCounter, 1790 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 3592 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-12-14 03:19:08,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 3592 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-12-14 03:19:08,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38475 states. [2022-12-14 03:19:11,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38475 to 37677. [2022-12-14 03:19:11,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37677 states, 21869 states have (on average 1.2570304997942292) internal successors, (27490), 22585 states have internal predecessors, (27490), 12640 states have call successors, (12640), 3321 states have call predecessors, (12640), 3166 states have return successors, (12664), 12112 states have call predecessors, (12664), 12636 states have call successors, (12664) [2022-12-14 03:19:11,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37677 states to 37677 states and 52794 transitions. [2022-12-14 03:19:11,418 INFO L78 Accepts]: Start accepts. Automaton has 37677 states and 52794 transitions. Word has length 514 [2022-12-14 03:19:11,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:19:11,418 INFO L495 AbstractCegarLoop]: Abstraction has 37677 states and 52794 transitions. [2022-12-14 03:19:11,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 2 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2022-12-14 03:19:11,419 INFO L276 IsEmpty]: Start isEmpty. Operand 37677 states and 52794 transitions. [2022-12-14 03:19:11,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2022-12-14 03:19:11,435 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:19:11,436 INFO L195 NwaCegarLoop]: trace histogram [24, 15, 15, 14, 14, 14, 14, 14, 14, 11, 10, 5, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-14 03:19:11,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 03:19:11,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:19:11,638 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 03:19:11,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:19:11,639 INFO L85 PathProgramCache]: Analyzing trace with hash -364324658, now seen corresponding path program 1 times [2022-12-14 03:19:11,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:19:11,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655306349] [2022-12-14 03:19:11,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:19:11,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:19:11,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:19:12,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1730 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 1709 trivial. 0 not checked. [2022-12-14 03:19:12,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:19:12,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655306349] [2022-12-14 03:19:12,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655306349] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 03:19:12,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621703447] [2022-12-14 03:19:12,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:19:12,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:19:12,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:19:12,018 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:19:12,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb89282-b9bc-4070-b4d9-309f5ec8cd37/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 03:19:12,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:19:12,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 4562 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 03:19:12,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:19:12,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1730 backedges. 434 proven. 1 refuted. 0 times theorem prover too weak. 1295 trivial. 0 not checked. [2022-12-14 03:19:12,968 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 03:19:13,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1730 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 1709 trivial. 0 not checked. [2022-12-14 03:19:13,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621703447] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 03:19:13,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1107663568] [2022-12-14 03:19:13,363 INFO L159 IcfgInterpreter]: Started Sifa with 264 locations of interest [2022-12-14 03:19:13,363 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 03:19:13,368 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 03:19:13,373 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 03:19:13,373 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs