./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/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_b7d65528-3faa-4093-9c05-6d51e6877d77/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/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_b7d65528-3faa-4093-9c05-6d51e6877d77/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 678d1ed0889f06c506279e4c19484f47385b64dd1d4a949ec484624bf8468835 --- 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 15:55:15,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:55:15,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:55:15,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:55:15,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:55:15,204 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:55:15,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:55:15,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:55:15,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:55:15,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:55:15,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:55:15,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:55:15,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:55:15,214 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:55:15,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:55:15,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:55:15,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:55:15,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:55:15,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:55:15,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:55:15,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:55:15,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:55:15,231 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:55:15,232 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:55:15,234 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:55:15,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:55:15,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:55:15,235 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:55:15,235 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:55:15,236 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:55:15,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:55:15,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:55:15,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:55:15,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:55:15,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:55:15,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:55:15,239 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:55:15,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:55:15,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:55:15,239 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:55:15,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:55:15,240 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 15:55:15,254 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:55:15,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:55:15,255 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:55:15,255 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:55:15,255 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:55:15,256 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:55:15,256 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:55:15,256 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:55:15,256 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:55:15,256 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:55:15,256 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:55:15,256 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:55:15,256 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:55:15,257 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:55:15,257 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:55:15,257 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:55:15,257 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:55:15,257 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:55:15,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:55:15,258 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:55:15,258 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:55:15,258 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:55:15,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:55:15,258 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:55:15,258 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:55:15,258 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:55:15,258 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:55:15,259 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:55:15,259 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:55:15,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:55:15,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:55:15,259 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:55:15,259 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:55:15,259 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:55:15,259 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:55:15,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:55:15,260 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:55:15,260 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:55:15,260 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_b7d65528-3faa-4093-9c05-6d51e6877d77/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 678d1ed0889f06c506279e4c19484f47385b64dd1d4a949ec484624bf8468835 [2022-12-14 15:55:15,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:55:15,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:55:15,450 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:55:15,450 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:55:15,451 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:55:15,452 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2022-12-14 15:55:18,141 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:55:18,720 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:55:18,721 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2022-12-14 15:55:18,766 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/bin/utaipan-gh47qXpMRh/data/76aafb94d/f369551634bf4fe1b249a2ec3c667f5b/FLAG0b36fd16d [2022-12-14 15:55:18,779 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/bin/utaipan-gh47qXpMRh/data/76aafb94d/f369551634bf4fe1b249a2ec3c667f5b [2022-12-14 15:55:18,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:55:18,783 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:55:18,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:55:18,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:55:18,787 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:55:18,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:55:18" (1/1) ... [2022-12-14 15:55:18,789 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73f5112c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:55:18, skipping insertion in model container [2022-12-14 15:55:18,789 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:55:18" (1/1) ... [2022-12-14 15:55:18,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:55:18,954 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:55:19,755 WARN L623 FunctionHandler]: Unknown extern function __local_bh_disable_ip [2022-12-14 15:55:19,767 WARN L623 FunctionHandler]: Unknown extern function __local_bh_enable_ip [2022-12-14 15:55:19,807 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 15:55:19,830 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_bh [2022-12-14 15:55:19,841 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 15:55:19,863 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_bh [2022-12-14 15:55:19,948 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 15:55:20,055 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-12-14 15:55:20,187 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:20,266 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 15:55:20,269 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 15:55:20,270 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 15:55:20,279 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 15:55:20,287 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 15:55:20,295 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 15:55:20,302 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_cpu [2022-12-14 15:55:20,308 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_device [2022-12-14 15:55:20,314 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-12-14 15:55:20,348 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 15:55:20,356 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 15:55:20,357 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 15:55:20,364 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-12-14 15:55:20,471 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 15:55:20,490 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-12-14 15:55:20,568 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-12-14 15:55:20,579 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 15:55:20,579 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 15:55:20,592 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 15:55:20,680 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 15:55:20,691 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 15:55:20,692 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 15:55:20,704 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 15:55:20,705 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:55:20,734 WARN L623 FunctionHandler]: Unknown extern function dql_completed [2022-12-14 15:55:20,746 WARN L623 FunctionHandler]: Unknown extern function dql_reset [2022-12-14 15:55:20,768 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 15:55:20,828 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 15:55:20,829 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 15:55:20,830 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 15:55:20,830 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 15:55:20,831 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-12-14 15:55:20,845 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 15:55:20,846 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 15:55:20,846 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 15:55:20,847 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 15:55:20,847 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-12-14 15:55:20,924 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_dword [2022-12-14 15:55:20,929 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_dword [2022-12-14 15:55:21,034 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-12-14 15:55:21,109 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 15:55:21,297 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:55:21,297 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 15:55:21,298 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:21,305 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:55:21,305 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 15:55:21,305 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:21,324 WARN L623 FunctionHandler]: Unknown extern function pci_pme_capable [2022-12-14 15:55:21,508 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 15:55:21,509 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 15:55:21,536 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 15:55:21,543 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-14 15:55:21,569 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 15:55:21,570 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-14 15:55:21,582 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 15:55:21,603 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:55:21,603 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:55:21,610 WARN L623 FunctionHandler]: Unknown extern function pci_find_capability [2022-12-14 15:55:21,614 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 15:55:21,616 WARN L623 FunctionHandler]: Unknown extern function netdev_update_features [2022-12-14 15:55:21,623 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:21,629 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 15:55:21,630 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:55:21,660 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 15:55:21,667 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 15:55:21,668 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 15:55:21,668 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 15:55:21,676 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 15:55:21,696 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:55:21,697 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-12-14 15:55:21,710 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 15:55:21,711 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:55:21,719 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 15:55:21,720 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:55:21,734 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 15:55:21,735 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 15:55:21,745 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:55:21,760 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 15:55:21,761 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 15:55:21,770 WARN L623 FunctionHandler]: Unknown extern function netdev_update_features [2022-12-14 15:55:21,770 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-12-14 15:55:21,771 WARN L623 FunctionHandler]: Unknown extern function netdev_update_features [2022-12-14 15:55:21,772 WARN L623 FunctionHandler]: Unknown extern function dev_close [2022-12-14 15:55:21,788 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 15:55:21,806 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 15:55:21,807 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 15:55:21,815 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 15:55:21,817 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 15:55:21,818 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:55:21,833 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-12-14 15:55:21,833 WARN L623 FunctionHandler]: Unknown extern function napi_gro_receive [2022-12-14 15:55:21,849 WARN L623 FunctionHandler]: Unknown extern function dev_notice [2022-12-14 15:55:21,876 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 15:55:21,878 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 15:55:21,878 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:55:21,887 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 15:55:21,887 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:55:21,888 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 15:55:21,888 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 15:55:21,889 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 15:55:21,889 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 15:55:21,889 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 15:55:21,890 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 15:55:21,890 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 15:55:21,890 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 15:55:21,891 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 15:55:21,892 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 15:55:21,900 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 15:55:21,901 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:21,902 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 15:55:21,902 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:21,911 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:55:21,920 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:21,928 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 15:55:21,935 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:55:21,936 WARN L623 FunctionHandler]: Unknown extern function round_jiffies [2022-12-14 15:55:21,942 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 15:55:21,942 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 15:55:21,950 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-12-14 15:55:21,983 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:21,984 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:21,992 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 15:55:22,003 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 15:55:22,009 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:55:22,010 WARN L623 FunctionHandler]: Unknown extern function dev_close [2022-12-14 15:55:22,010 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 15:55:22,016 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-12-14 15:55:22,017 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 15:55:22,029 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-12-14 15:55:22,030 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-12-14 15:55:22,048 WARN L623 FunctionHandler]: Unknown extern function device_set_wakeup_enable [2022-12-14 15:55:22,074 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 15:55:22,075 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 15:55:22,075 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 15:55:22,131 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 15:55:22,132 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-12-14 15:55:22,232 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:22,232 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:55:22,232 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:55:22,251 WARN L623 FunctionHandler]: Unknown extern function pci_find_capability [2022-12-14 15:55:22,258 WARN L623 FunctionHandler]: Unknown extern function pci_find_capability [2022-12-14 15:55:22,265 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:55:22,265 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:55:22,279 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:22,280 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 15:55:22,280 WARN L623 FunctionHandler]: Unknown extern function pci_read_vpd [2022-12-14 15:55:22,280 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 15:55:22,281 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:22,281 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:22,281 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:22,282 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 15:55:22,282 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 15:55:22,283 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:22,284 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:55:22,290 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:22,290 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:22,291 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:22,291 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 15:55:22,291 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 15:55:22,292 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:22,292 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 15:55:22,293 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:22,293 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:22,294 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:22,295 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:22,295 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:22,295 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:22,296 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:22,296 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:22,296 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:22,296 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:22,297 WARN L623 FunctionHandler]: Unknown extern function seq_putc [2022-12-14 15:55:22,298 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:22,303 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-12-14 15:55:22,310 WARN L623 FunctionHandler]: Unknown extern function debugfs_rename [2022-12-14 15:55:22,311 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 15:55:22,311 WARN L623 FunctionHandler]: Unknown extern function debugfs_remove [2022-12-14 15:55:22,312 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_file [2022-12-14 15:55:22,318 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_dir [2022-12-14 15:55:22,325 WARN L623 FunctionHandler]: Unknown extern function debugfs_remove [2022-12-14 15:55:22,333 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 15:55:22,340 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:55:22,347 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 15:55:22,353 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 15:55:22,354 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:22,355 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 15:55:22,355 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-12-14 15:55:22,355 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 15:55:22,356 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 15:55:22,364 WARN L623 FunctionHandler]: Unknown extern function strncpy [2022-12-14 15:55:22,372 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 15:55:22,372 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:22,373 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:22,373 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:22,373 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-14 15:55:22,374 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:22,374 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 15:55:22,374 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:22,375 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:22,375 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 15:55:22,376 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-12-14 15:55:22,376 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:22,377 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 15:55:22,377 WARN L623 FunctionHandler]: Unknown extern function pci_enable_msi_block [2022-12-14 15:55:22,377 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-12-14 15:55:22,378 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-12-14 15:55:22,378 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:22,378 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 15:55:22,379 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:22,379 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 15:55:22,379 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 15:55:22,380 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 15:55:22,380 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-12-14 15:55:22,381 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 15:55:22,381 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:55:22,381 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 15:55:22,381 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 15:55:22,388 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 15:55:22,388 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-12-14 15:55:22,389 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 15:55:22,389 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 15:55:22,389 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 15:55:22,389 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:55:22,396 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 15:55:22,396 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-12-14 15:55:22,397 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-12-14 15:55:22,403 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:22,404 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-12-14 15:55:22,404 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-12-14 15:55:22,404 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:22,404 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 15:55:22,411 WARN L623 FunctionHandler]: Unknown extern function pci_wake_from_d3 [2022-12-14 15:55:22,411 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 15:55:22,417 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:55:23,150 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,151 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,151 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,151 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,151 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,152 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,152 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,152 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,152 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,153 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,153 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,153 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,153 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,153 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,153 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,154 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,154 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,154 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,154 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,155 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,155 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,155 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,155 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,155 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,156 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,156 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,156 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,156 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,156 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,157 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,157 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,157 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:23,161 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-12-14 15:55:23,163 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 15:55:23,166 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 15:55:23,170 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-12-14 15:55:23,170 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-12-14 15:55:23,171 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-12-14 15:55:23,173 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 15:55:23,173 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 15:55:23,174 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 15:55:23,174 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 15:55:23,183 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 15:55:23,188 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 15:55:23,194 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 15:55:23,200 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 15:55:23,201 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 15:55:23,203 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 15:55:23,204 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 15:55:23,204 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 15:55:23,205 WARN L623 FunctionHandler]: Unknown extern function register_netdevice_notifier [2022-12-14 15:55:23,205 WARN L623 FunctionHandler]: Unknown extern function unregister_netdevice_notifier [2022-12-14 15:55:23,206 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 15:55:23,206 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 15:55:23,207 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 15:55:23,207 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 15:55:23,208 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 15:55:23,208 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 15:55:23,208 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 15:55:23,208 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 15:55:23,209 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 15:55:23,209 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 15:55:23,209 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 15:55:23,210 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 15:55:23,210 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 15:55:23,211 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 15:55:23,211 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 15:55:23,264 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 15:55:23,264 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 15:55:23,276 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 15:55:24,031 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_b7d65528-3faa-4093-9c05-6d51e6877d77/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596672,596685] [2022-12-14 15:55:24,033 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_b7d65528-3faa-4093-9c05-6d51e6877d77/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596841,596854] [2022-12-14 15:55:24,034 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_b7d65528-3faa-4093-9c05-6d51e6877d77/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597008,597021] [2022-12-14 15:55:24,034 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_b7d65528-3faa-4093-9c05-6d51e6877d77/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597176,597189] [2022-12-14 15:55:24,035 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,036 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,036 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,037 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,047 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,048 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,048 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,054 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:55:24,127 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:55:24,226 WARN L623 FunctionHandler]: Unknown extern function __local_bh_disable_ip [2022-12-14 15:55:24,227 WARN L623 FunctionHandler]: Unknown extern function __local_bh_enable_ip [2022-12-14 15:55:24,227 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 15:55:24,228 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_bh [2022-12-14 15:55:24,228 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 15:55:24,228 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_bh [2022-12-14 15:55:24,229 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 15:55:24,230 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-12-14 15:55:24,232 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,236 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 15:55:24,236 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 15:55:24,236 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 15:55:24,237 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 15:55:24,238 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 15:55:24,239 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 15:55:24,240 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_cpu [2022-12-14 15:55:24,240 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_device [2022-12-14 15:55:24,241 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-12-14 15:55:24,242 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 15:55:24,243 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 15:55:24,243 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 15:55:24,244 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-12-14 15:55:24,246 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 15:55:24,247 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-12-14 15:55:24,248 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-12-14 15:55:24,249 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 15:55:24,249 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 15:55:24,249 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 15:55:24,250 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 15:55:24,251 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 15:55:24,251 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 15:55:24,251 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 15:55:24,252 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:55:24,253 WARN L623 FunctionHandler]: Unknown extern function dql_completed [2022-12-14 15:55:24,253 WARN L623 FunctionHandler]: Unknown extern function dql_reset [2022-12-14 15:55:24,254 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 15:55:24,255 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 15:55:24,255 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 15:55:24,255 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 15:55:24,256 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 15:55:24,256 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-12-14 15:55:24,257 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 15:55:24,257 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 15:55:24,257 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 15:55:24,257 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 15:55:24,258 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-12-14 15:55:24,258 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_dword [2022-12-14 15:55:24,259 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_dword [2022-12-14 15:55:24,262 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-12-14 15:55:24,263 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 15:55:24,270 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:55:24,270 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 15:55:24,270 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:24,271 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:55:24,271 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 15:55:24,272 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:24,274 WARN L623 FunctionHandler]: Unknown extern function pci_pme_capable [2022-12-14 15:55:24,312 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 15:55:24,312 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 15:55:24,323 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 15:55:24,325 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-14 15:55:24,337 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 15:55:24,338 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-14 15:55:24,357 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 15:55:24,366 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:55:24,366 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:55:24,369 WARN L623 FunctionHandler]: Unknown extern function pci_find_capability [2022-12-14 15:55:24,370 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 15:55:24,371 WARN L623 FunctionHandler]: Unknown extern function netdev_update_features [2022-12-14 15:55:24,372 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:24,374 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 15:55:24,375 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:55:24,379 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 15:55:24,383 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 15:55:24,383 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 15:55:24,383 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 15:55:24,385 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 15:55:24,392 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:55:24,393 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-12-14 15:55:24,397 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 15:55:24,397 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:55:24,400 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 15:55:24,400 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:55:24,403 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 15:55:24,403 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 15:55:24,405 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:55:24,409 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 15:55:24,409 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 15:55:24,412 WARN L623 FunctionHandler]: Unknown extern function netdev_update_features [2022-12-14 15:55:24,413 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-12-14 15:55:24,413 WARN L623 FunctionHandler]: Unknown extern function netdev_update_features [2022-12-14 15:55:24,414 WARN L623 FunctionHandler]: Unknown extern function dev_close [2022-12-14 15:55:24,416 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 15:55:24,420 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 15:55:24,420 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 15:55:24,421 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 15:55:24,422 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 15:55:24,422 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:55:24,423 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-12-14 15:55:24,424 WARN L623 FunctionHandler]: Unknown extern function napi_gro_receive [2022-12-14 15:55:24,425 WARN L623 FunctionHandler]: Unknown extern function dev_notice [2022-12-14 15:55:24,433 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 15:55:24,434 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 15:55:24,434 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:55:24,435 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 15:55:24,435 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:55:24,435 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 15:55:24,436 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 15:55:24,436 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 15:55:24,436 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 15:55:24,436 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 15:55:24,437 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 15:55:24,437 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 15:55:24,437 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 15:55:24,437 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 15:55:24,438 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 15:55:24,438 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 15:55:24,439 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:24,439 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 15:55:24,439 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:24,440 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:55:24,441 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:24,445 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 15:55:24,446 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:55:24,446 WARN L623 FunctionHandler]: Unknown extern function round_jiffies [2022-12-14 15:55:24,447 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 15:55:24,447 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 15:55:24,448 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-12-14 15:55:24,451 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:24,452 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:24,454 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 15:55:24,458 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 15:55:24,458 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:55:24,458 WARN L623 FunctionHandler]: Unknown extern function dev_close [2022-12-14 15:55:24,458 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 15:55:24,459 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-12-14 15:55:24,459 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 15:55:24,460 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-12-14 15:55:24,460 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-12-14 15:55:24,471 WARN L623 FunctionHandler]: Unknown extern function device_set_wakeup_enable [2022-12-14 15:55:24,494 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 15:55:24,494 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 15:55:24,495 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 15:55:24,503 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 15:55:24,503 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-12-14 15:55:24,529 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:24,529 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:55:24,529 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:55:24,531 WARN L623 FunctionHandler]: Unknown extern function pci_find_capability [2022-12-14 15:55:24,534 WARN L623 FunctionHandler]: Unknown extern function pci_find_capability [2022-12-14 15:55:24,541 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:55:24,541 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:55:24,547 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:24,548 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 15:55:24,548 WARN L623 FunctionHandler]: Unknown extern function pci_read_vpd [2022-12-14 15:55:24,548 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 15:55:24,548 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:24,549 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:24,549 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:24,549 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 15:55:24,550 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 15:55:24,550 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:24,550 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:55:24,553 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:24,554 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:24,554 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:24,554 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 15:55:24,554 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 15:55:24,555 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:24,555 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 15:55:24,555 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:24,556 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:24,557 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:24,557 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:24,557 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:24,557 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:24,557 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:24,558 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:24,558 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:24,558 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:24,558 WARN L623 FunctionHandler]: Unknown extern function seq_putc [2022-12-14 15:55:24,559 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 15:55:24,559 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-12-14 15:55:24,562 WARN L623 FunctionHandler]: Unknown extern function debugfs_rename [2022-12-14 15:55:24,563 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 15:55:24,563 WARN L623 FunctionHandler]: Unknown extern function debugfs_remove [2022-12-14 15:55:24,563 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_file [2022-12-14 15:55:24,564 WARN L623 FunctionHandler]: Unknown extern function debugfs_create_dir [2022-12-14 15:55:24,564 WARN L623 FunctionHandler]: Unknown extern function debugfs_remove [2022-12-14 15:55:24,568 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 15:55:24,569 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:55:24,570 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 15:55:24,570 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 15:55:24,570 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:24,571 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 15:55:24,571 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-12-14 15:55:24,571 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 15:55:24,572 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 15:55:24,573 WARN L623 FunctionHandler]: Unknown extern function strncpy [2022-12-14 15:55:24,574 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 15:55:24,574 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:24,574 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:24,575 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:24,575 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-14 15:55:24,575 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:24,575 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 15:55:24,576 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:24,576 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:24,577 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 15:55:24,577 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-12-14 15:55:24,577 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:24,578 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 15:55:24,578 WARN L623 FunctionHandler]: Unknown extern function pci_enable_msi_block [2022-12-14 15:55:24,578 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-12-14 15:55:24,579 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-12-14 15:55:24,579 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:24,579 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 15:55:24,579 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:24,580 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 15:55:24,580 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 15:55:24,580 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 15:55:24,581 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-12-14 15:55:24,581 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 15:55:24,581 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:55:24,581 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 15:55:24,581 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 15:55:24,582 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 15:55:24,582 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-12-14 15:55:24,583 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 15:55:24,583 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 15:55:24,583 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 15:55:24,583 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:55:24,584 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 15:55:24,584 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-12-14 15:55:24,584 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-12-14 15:55:24,585 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:24,585 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-12-14 15:55:24,585 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-12-14 15:55:24,585 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 15:55:24,585 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 15:55:24,586 WARN L623 FunctionHandler]: Unknown extern function pci_wake_from_d3 [2022-12-14 15:55:24,586 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 15:55:24,586 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:55:24,592 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,592 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,592 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,592 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,592 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,592 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,593 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,593 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,593 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,593 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,593 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,593 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,593 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,593 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,594 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,594 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,594 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,594 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,594 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,594 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,594 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,594 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,595 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,595 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,595 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,595 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,595 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,595 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,595 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,596 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,596 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,596 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,597 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-12-14 15:55:24,599 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 15:55:24,601 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 15:55:24,603 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-12-14 15:55:24,603 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-12-14 15:55:24,604 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-12-14 15:55:24,605 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 15:55:24,605 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 15:55:24,606 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 15:55:24,606 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 15:55:24,612 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 15:55:24,615 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 15:55:24,650 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 15:55:24,658 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 15:55:24,658 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 15:55:24,663 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 15:55:24,663 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 15:55:24,663 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 15:55:24,664 WARN L623 FunctionHandler]: Unknown extern function register_netdevice_notifier [2022-12-14 15:55:24,664 WARN L623 FunctionHandler]: Unknown extern function unregister_netdevice_notifier [2022-12-14 15:55:24,665 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 15:55:24,665 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 15:55:24,666 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 15:55:24,666 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 15:55:24,666 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 15:55:24,667 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 15:55:24,667 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 15:55:24,667 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 15:55:24,667 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 15:55:24,668 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 15:55:24,668 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 15:55:24,668 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 15:55:24,668 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 15:55:24,669 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 15:55:24,669 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 15:55:24,671 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 15:55:24,671 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 15:55:24,672 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 15:55:24,690 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_b7d65528-3faa-4093-9c05-6d51e6877d77/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596672,596685] [2022-12-14 15:55:24,690 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_b7d65528-3faa-4093-9c05-6d51e6877d77/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596841,596854] [2022-12-14 15:55:24,690 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_b7d65528-3faa-4093-9c05-6d51e6877d77/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597008,597021] [2022-12-14 15:55:24,691 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_b7d65528-3faa-4093-9c05-6d51e6877d77/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597176,597189] [2022-12-14 15:55:24,691 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,694 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,695 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,695 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,696 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,696 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,696 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,698 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:55:24,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:55:24,938 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:55:24,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:55:24 WrapperNode [2022-12-14 15:55:24,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:55:24,939 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:55:24,939 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:55:24,939 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:55:24,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:55:24" (1/1) ... [2022-12-14 15:55:25,034 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:55:24" (1/1) ... [2022-12-14 15:55:25,221 INFO L138 Inliner]: procedures = 824, calls = 5711, calls flagged for inlining = 430, calls inlined = 371, statements flattened = 11389 [2022-12-14 15:55:25,222 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:55:25,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:55:25,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:55:25,222 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:55:25,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:55:24" (1/1) ... [2022-12-14 15:55:25,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:55:24" (1/1) ... [2022-12-14 15:55:25,263 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:55:24" (1/1) ... [2022-12-14 15:55:25,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:55:24" (1/1) ... [2022-12-14 15:55:25,362 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:55:24" (1/1) ... [2022-12-14 15:55:25,382 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:55:24" (1/1) ... [2022-12-14 15:55:25,450 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:55:24" (1/1) ... [2022-12-14 15:55:25,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:55:24" (1/1) ... [2022-12-14 15:55:25,499 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:55:25,500 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:55:25,500 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:55:25,500 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:55:25,501 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:55:24" (1/1) ... [2022-12-14 15:55:25,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:55:25,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:55:25,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:55:25,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:55:25,564 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-12-14 15:55:25,564 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-12-14 15:55:25,564 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_remove [2022-12-14 15:55:25,564 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_remove [2022-12-14 15:55:25,564 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_led [2022-12-14 15:55:25,564 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_led [2022-12-14 15:55:25,565 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_alloc_rx_skbs [2022-12-14 15:55:25,565 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_alloc_rx_skbs [2022-12-14 15:55:25,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 15:55:25,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 15:55:25,565 INFO L130 BoogieDeclarations]: Found specification of procedure rx_set_rss [2022-12-14 15:55:25,565 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_set_rss [2022-12-14 15:55:25,565 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_power_aux [2022-12-14 15:55:25,565 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_power_aux [2022-12-14 15:55:25,565 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-12-14 15:55:25,565 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-12-14 15:55:25,565 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2022-12-14 15:55:25,565 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2022-12-14 15:55:25,566 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-12-14 15:55:25,566 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-12-14 15:55:25,566 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_add_filter [2022-12-14 15:55:25,566 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_add_filter [2022-12-14 15:55:25,566 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-12-14 15:55:25,566 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-12-14 15:55:25,566 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2022-12-14 15:55:25,566 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2022-12-14 15:55:25,566 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2022-12-14 15:55:25,566 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2022-12-14 15:55:25,566 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-12-14 15:55:25,566 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-12-14 15:55:25,567 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-12-14 15:55:25,567 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-12-14 15:55:25,567 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_init_netdev [2022-12-14 15:55:25,567 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_init_netdev [2022-12-14 15:55:25,567 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-12-14 15:55:25,567 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-12-14 15:55:25,567 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-12-14 15:55:25,567 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-12-14 15:55:25,567 INFO L130 BoogieDeclarations]: Found specification of procedure netif_schedule_queue [2022-12-14 15:55:25,567 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_schedule_queue [2022-12-14 15:55:25,567 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_regs_len [2022-12-14 15:55:25,567 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_regs_len [2022-12-14 15:55:25,568 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-12-14 15:55:25,568 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-12-14 15:55:25,568 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_update [2022-12-14 15:55:25,568 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_update [2022-12-14 15:55:25,568 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-12-14 15:55:25,568 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-12-14 15:55:25,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 15:55:25,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 15:55:25,568 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_ramset [2022-12-14 15:55:25,568 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_ramset [2022-12-14 15:55:25,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 15:55:25,568 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_update_features [2022-12-14 15:55:25,568 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_update_features [2022-12-14 15:55:25,568 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_netpoll [2022-12-14 15:55:25,569 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_netpoll [2022-12-14 15:55:25,569 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-12-14 15:55:25,569 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-12-14 15:55:25,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-12-14 15:55:25,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-12-14 15:55:25,569 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-12-14 15:55:25,569 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-12-14 15:55:25,569 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-12-14 15:55:25,569 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-12-14 15:55:25,569 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-12-14 15:55:25,569 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-12-14 15:55:25,569 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-12-14 15:55:25,569 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-12-14 15:55:25,569 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_lock [2022-12-14 15:55:25,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_lock [2022-12-14 15:55:25,570 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-12-14 15:55:25,570 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-12-14 15:55:25,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 15:55:25,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 15:55:25,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 15:55:25,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-12-14 15:55:25,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-12-14 15:55:25,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-12-14 15:55:25,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-12-14 15:55:25,570 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_add [2022-12-14 15:55:25,570 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_add [2022-12-14 15:55:25,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-12-14 15:55:25,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-12-14 15:55:25,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-12-14 15:55:25,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-12-14 15:55:25,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2022-12-14 15:55:25,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2022-12-14 15:55:25,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2022-12-14 15:55:25,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2022-12-14 15:55:25,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-12-14 15:55:25,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-12-14 15:55:25,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:55:25,571 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_map_skb [2022-12-14 15:55:25,571 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_map_skb [2022-12-14 15:55:25,571 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_resume [2022-12-14 15:55:25,571 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_resume [2022-12-14 15:55:25,571 INFO L130 BoogieDeclarations]: Found specification of procedure roundup_ring_size [2022-12-14 15:55:25,571 INFO L138 BoogieDeclarations]: Found implementation of procedure roundup_ring_size [2022-12-14 15:55:25,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 15:55:25,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 15:55:25,572 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-12-14 15:55:25,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-12-14 15:55:25,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 15:55:25,572 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-12-14 15:55:25,572 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read32 [2022-12-14 15:55:25,572 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read32 [2022-12-14 15:55:25,572 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-12-14 15:55:25,572 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-12-14 15:55:25,572 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_disable [2022-12-14 15:55:25,572 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_disable [2022-12-14 15:55:25,572 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_clean [2022-12-14 15:55:25,572 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_clean [2022-12-14 15:55:25,572 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-12-14 15:55:25,573 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-12-14 15:55:25,573 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 15:55:25,573 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 15:55:25,573 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_down [2022-12-14 15:55:25,573 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_down [2022-12-14 15:55:25,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-12-14 15:55:25,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-12-14 15:55:25,573 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_reinit [2022-12-14 15:55:25,573 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_reinit [2022-12-14 15:55:25,573 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-12-14 15:55:25,573 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-12-14 15:55:25,573 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read16 [2022-12-14 15:55:25,573 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read16 [2022-12-14 15:55:25,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:55:25,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:55:25,574 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write16 [2022-12-14 15:55:25,574 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write16 [2022-12-14 15:55:25,574 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-12-14 15:55:25,574 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-12-14 15:55:25,574 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_free_buffers [2022-12-14 15:55:25,574 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_free_buffers [2022-12-14 15:55:25,574 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-12-14 15:55:25,574 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-12-14 15:55:25,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 15:55:25,574 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-12-14 15:55:25,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-12-14 15:55:25,574 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-12-14 15:55:25,574 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-12-14 15:55:25,574 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2022-12-14 15:55:25,575 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2022-12-14 15:55:25,575 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-12-14 15:55:25,575 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-12-14 15:55:25,575 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read32 [2022-12-14 15:55:25,575 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read32 [2022-12-14 15:55:25,575 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-12-14 15:55:25,575 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_multicast [2022-12-14 15:55:25,575 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_multicast [2022-12-14 15:55:25,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-12-14 15:55:25,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-12-14 15:55:25,575 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_prefetch_init [2022-12-14 15:55:25,575 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_prefetch_init [2022-12-14 15:55:25,575 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_reset [2022-12-14 15:55:25,575 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_reset [2022-12-14 15:55:25,575 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-12-14 15:55:25,576 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-12-14 15:55:25,576 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-12-14 15:55:25,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-12-14 15:55:25,576 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-12-14 15:55:25,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-12-14 15:55:25,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2022-12-14 15:55:25,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2022-12-14 15:55:25,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 15:55:25,576 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 15:55:25,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-12-14 15:55:25,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-12-14 15:55:25,576 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-12-14 15:55:25,576 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-12-14 15:55:25,576 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vpd_wait [2022-12-14 15:55:25,576 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vpd_wait [2022-12-14 15:55:25,576 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-12-14 15:55:25,576 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-12-14 15:55:25,576 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_shutdown [2022-12-14 15:55:25,576 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_shutdown [2022-12-14 15:55:25,577 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read16 [2022-12-14 15:55:25,577 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read16 [2022-12-14 15:55:25,577 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_le [2022-12-14 15:55:25,577 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_le [2022-12-14 15:55:25,577 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_stop [2022-12-14 15:55:25,577 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_stop [2022-12-14 15:55:25,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 15:55:25,577 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-14 15:55:25,577 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-14 15:55:25,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 15:55:25,577 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_down [2022-12-14 15:55:25,577 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_down [2022-12-14 15:55:25,577 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-12-14 15:55:25,577 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-12-14 15:55:25,577 INFO L130 BoogieDeclarations]: Found specification of procedure __gm_phy_read [2022-12-14 15:55:25,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __gm_phy_read [2022-12-14 15:55:25,577 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-12-14 15:55:25,577 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-12-14 15:55:25,577 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2022-12-14 15:55:25,577 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2022-12-14 15:55:25,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-14 15:55:25,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-14 15:55:25,578 INFO L130 BoogieDeclarations]: Found specification of procedure gma_write16 [2022-12-14 15:55:25,578 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_write16 [2022-12-14 15:55:25,578 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-12-14 15:55:25,578 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-12-14 15:55:25,578 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_next_rx [2022-12-14 15:55:25,578 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_next_rx [2022-12-14 15:55:25,578 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-12-14 15:55:25,578 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-12-14 15:55:25,578 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2022-12-14 15:55:25,578 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2022-12-14 15:55:25,578 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_eeprom_len [2022-12-14 15:55:25,578 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_eeprom_len [2022-12-14 15:55:25,578 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-14 15:55:25,578 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-14 15:55:25,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_79 [2022-12-14 15:55:25,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_79 [2022-12-14 15:55:25,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 15:55:25,578 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_us2clk [2022-12-14 15:55:25,579 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_us2clk [2022-12-14 15:55:25,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 15:55:25,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 15:55:25,579 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2022-12-14 15:55:25,579 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2022-12-14 15:55:25,579 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-12-14 15:55:25,579 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-12-14 15:55:25,579 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2022-12-14 15:55:25,579 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2022-12-14 15:55:25,579 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-12-14 15:55:25,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-12-14 15:55:25,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2022-12-14 15:55:25,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2022-12-14 15:55:25,579 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-12-14 15:55:25,579 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-12-14 15:55:25,579 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_qset [2022-12-14 15:55:25,579 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_qset [2022-12-14 15:55:25,579 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_mhz [2022-12-14 15:55:25,579 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_mhz [2022-12-14 15:55:25,579 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-12-14 15:55:25,579 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-12-14 15:55:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 15:55:25,580 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 15:55:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-12-14 15:55:25,580 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-12-14 15:55:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats32 [2022-12-14 15:55:25,580 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats32 [2022-12-14 15:55:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 15:55:25,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 15:55:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-12-14 15:55:25,580 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-12-14 15:55:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_supported_modes [2022-12-14 15:55:25,580 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_supported_modes [2022-12-14 15:55:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_read [2022-12-14 15:55:25,580 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_read [2022-12-14 15:55:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_alloc [2022-12-14 15:55:25,580 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_alloc [2022-12-14 15:55:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2022-12-14 15:55:25,580 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2022-12-14 15:55:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_unlock [2022-12-14 15:55:25,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_unlock [2022-12-14 15:55:25,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 15:55:25,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 15:55:25,581 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_show_addr [2022-12-14 15:55:25,581 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_show_addr [2022-12-14 15:55:25,581 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-12-14 15:55:25,581 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-12-14 15:55:25,581 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_close [2022-12-14 15:55:25,581 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_close [2022-12-14 15:55:25,581 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-12-14 15:55:25,581 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-12-14 15:55:25,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 15:55:25,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 15:55:25,581 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_start [2022-12-14 15:55:25,581 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_start [2022-12-14 15:55:25,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:55:25,581 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-12-14 15:55:25,581 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-12-14 15:55:25,581 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats64 [2022-12-14 15:55:25,581 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats64 [2022-12-14 15:55:25,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-12-14 15:55:25,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-12-14 15:55:25,582 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-12-14 15:55:25,582 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-12-14 15:55:25,582 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-12-14 15:55:25,582 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-12-14 15:55:25,582 INFO L130 BoogieDeclarations]: Found specification of procedure pci_is_pcie [2022-12-14 15:55:25,582 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_is_pcie [2022-12-14 15:55:25,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 15:55:25,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-12-14 15:55:25,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-12-14 15:55:25,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 15:55:25,582 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-12-14 15:55:25,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-12-14 15:55:25,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_80 [2022-12-14 15:55:25,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_80 [2022-12-14 15:55:25,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 15:55:25,582 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 15:55:25,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-12-14 15:55:25,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-12-14 15:55:25,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-12-14 15:55:25,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-12-14 15:55:25,583 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_up [2022-12-14 15:55:25,583 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_up [2022-12-14 15:55:25,583 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-12-14 15:55:25,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-12-14 15:55:25,583 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_unmap [2022-12-14 15:55:25,583 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_unmap [2022-12-14 15:55:25,583 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_put_idx [2022-12-14 15:55:25,583 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_put_idx [2022-12-14 15:55:25,583 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 15:55:25,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 15:55:25,583 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_dma_map [2022-12-14 15:55:25,583 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_dma_map [2022-12-14 15:55:25,583 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-14 15:55:25,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-14 15:55:25,583 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_power_up [2022-12-14 15:55:25,583 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_power_up [2022-12-14 15:55:25,583 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_init [2022-12-14 15:55:25,583 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_init [2022-12-14 15:55:25,583 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-12-14 15:55:25,583 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-12-14 15:55:25,584 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_complete [2022-12-14 15:55:25,584 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_complete [2022-12-14 15:55:25,584 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2022-12-14 15:55:25,584 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2022-12-14 15:55:25,584 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-12-14 15:55:25,584 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-12-14 15:55:25,584 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read16 [2022-12-14 15:55:25,584 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read16 [2022-12-14 15:55:25,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 15:55:25,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 15:55:25,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 15:55:25,584 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_up [2022-12-14 15:55:25,584 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_up [2022-12-14 15:55:25,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 15:55:25,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 15:55:25,584 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_timeout [2022-12-14 15:55:25,584 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_timeout [2022-12-14 15:55:25,584 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-12-14 15:55:25,584 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-12-14 15:55:25,584 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_wol_supported [2022-12-14 15:55:25,585 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_wol_supported [2022-12-14 15:55:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write32 [2022-12-14 15:55:25,585 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write32 [2022-12-14 15:55:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-12-14 15:55:25,585 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-12-14 15:55:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_submit [2022-12-14 15:55:25,585 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_submit [2022-12-14 15:55:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-12-14 15:55:25,585 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-12-14 15:55:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-12-14 15:55:25,585 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-12-14 15:55:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vlan_mode [2022-12-14 15:55:25,585 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vlan_mode [2022-12-14 15:55:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read8 [2022-12-14 15:55:25,585 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read8 [2022-12-14 15:55:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2022-12-14 15:55:25,585 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2022-12-14 15:55:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read32 [2022-12-14 15:55:25,585 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read32 [2022-12-14 15:55:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_phy_lock_of_sky2_port [2022-12-14 15:55:25,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_phy_lock_of_sky2_port [2022-12-14 15:55:25,586 INFO L130 BoogieDeclarations]: Found specification of procedure gma_set_addr [2022-12-14 15:55:25,586 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_set_addr [2022-12-14 15:55:25,586 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-12-14 15:55:25,586 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-12-14 15:55:25,586 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-12-14 15:55:25,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-12-14 15:55:25,586 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-12-14 15:55:25,586 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-12-14 15:55:25,586 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-12-14 15:55:25,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-12-14 15:55:25,586 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-12-14 15:55:25,586 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-12-14 15:55:25,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 15:55:25,586 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_nway_reset [2022-12-14 15:55:25,586 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_nway_reset [2022-12-14 15:55:25,586 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-12-14 15:55:25,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-12-14 15:55:25,586 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-12-14 15:55:25,586 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-12-14 15:55:25,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-12-14 15:55:25,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-12-14 15:55:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-12-14 15:55:25,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-12-14 15:55:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-12-14 15:55:25,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-12-14 15:55:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 15:55:25,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 15:55:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure tx_avail [2022-12-14 15:55:25,587 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_avail [2022-12-14 15:55:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_unmap_skb [2022-12-14 15:55:25,587 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_unmap_skb [2022-12-14 15:55:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-12-14 15:55:25,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-12-14 15:55:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_clk2us [2022-12-14 15:55:25,587 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_clk2us [2022-12-14 15:55:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_tx_stfwd [2022-12-14 15:55:25,587 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_tx_stfwd [2022-12-14 15:55:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_enable_rx_tx [2022-12-14 15:55:25,587 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_enable_rx_tx [2022-12-14 15:55:25,588 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-12-14 15:55:25,588 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-12-14 15:55:25,588 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-12-14 15:55:25,588 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-12-14 15:55:25,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sky2_cleanup_module_22_2 [2022-12-14 15:55:25,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sky2_cleanup_module_22_2 [2022-12-14 15:55:25,588 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-12-14 15:55:25,588 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-12-14 15:55:25,588 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_setup_irq [2022-12-14 15:55:25,588 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_setup_irq [2022-12-14 15:55:25,588 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 15:55:25,588 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 15:55:25,588 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-12-14 15:55:25,588 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-12-14 15:55:25,588 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-12-14 15:55:25,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-12-14 15:55:25,588 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_is_copper [2022-12-14 15:55:25,588 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_is_copper [2022-12-14 15:55:25,588 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-12-14 15:55:25,588 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-12-14 15:55:25,589 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_suspend [2022-12-14 15:55:25,589 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_suspend [2022-12-14 15:55:25,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_6 [2022-12-14 15:55:25,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_6 [2022-12-14 15:55:25,589 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-12-14 15:55:25,589 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-12-14 15:55:25,589 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write16 [2022-12-14 15:55:25,589 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write16 [2022-12-14 15:55:25,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 15:55:25,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 15:55:25,589 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-12-14 15:55:25,589 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-12-14 15:55:25,589 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write8 [2022-12-14 15:55:25,589 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write8 [2022-12-14 15:55:25,589 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_write [2022-12-14 15:55:25,589 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_write [2022-12-14 15:55:25,589 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-12-14 15:55:25,589 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-12-14 15:55:25,589 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-12-14 15:55:25,589 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-12-14 15:55:25,590 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write32 [2022-12-14 15:55:25,590 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write32 [2022-12-14 15:55:25,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:55:25,590 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read64 [2022-12-14 15:55:25,590 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read64 [2022-12-14 15:55:25,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-12-14 15:55:25,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-12-14 15:55:25,590 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-12-14 15:55:25,590 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-12-14 15:55:25,590 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_open [2022-12-14 15:55:25,590 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_open [2022-12-14 15:55:25,590 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-12-14 15:55:26,524 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:55:26,527 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:55:26,596 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 15:55:35,493 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-12-14 15:55:35,657 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:55:37,555 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:55:37,555 INFO L300 CfgBuilder]: Removed 12 assume(true) statements. [2022-12-14 15:55:37,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:55:37 BoogieIcfgContainer [2022-12-14 15:55:37,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:55:37,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:55:37,563 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:55:37,565 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:55:37,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:55:18" (1/3) ... [2022-12-14 15:55:37,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a25eda6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:55:37, skipping insertion in model container [2022-12-14 15:55:37,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:55:24" (2/3) ... [2022-12-14 15:55:37,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a25eda6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:55:37, skipping insertion in model container [2022-12-14 15:55:37,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:55:37" (3/3) ... [2022-12-14 15:55:37,568 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2022-12-14 15:55:37,582 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:55:37,582 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-14 15:55:37,675 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:55:37,680 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;@45971bc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:55:37,680 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-14 15:55:37,691 INFO L276 IsEmpty]: Start isEmpty. Operand has 3406 states, 1945 states have (on average 1.3120822622107968) internal successors, (2552), 2027 states have internal predecessors, (2552), 1244 states have call successors, (1244), 216 states have call predecessors, (1244), 215 states have return successors, (1234), 1209 states have call predecessors, (1234), 1234 states have call successors, (1234) [2022-12-14 15:55:37,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2022-12-14 15:55:37,720 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:55:37,721 INFO L195 NwaCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:37,721 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 15:55:37,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:55:37,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1144033873, now seen corresponding path program 1 times [2022-12-14 15:55:37,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:55:37,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548851964] [2022-12-14 15:55:37,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:55:37,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:55:38,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:55:38,840 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4032 trivial. 0 not checked. [2022-12-14 15:55:38,840 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:55:38,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548851964] [2022-12-14 15:55:38,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548851964] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:55:38,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:55:38,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:55:38,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485339877] [2022-12-14 15:55:38,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:55:38,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:55:38,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:55:38,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:55:38,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:55:38,884 INFO L87 Difference]: Start difference. First operand has 3406 states, 1945 states have (on average 1.3120822622107968) internal successors, (2552), 2027 states have internal predecessors, (2552), 1244 states have call successors, (1244), 216 states have call predecessors, (1244), 215 states have return successors, (1234), 1209 states have call predecessors, (1234), 1234 states have call successors, (1234) Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-12-14 15:55:42,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:55:42,904 INFO L93 Difference]: Finished difference Result 9966 states and 14922 transitions. [2022-12-14 15:55:42,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:55:42,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 343 [2022-12-14 15:55:42,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:55:42,947 INFO L225 Difference]: With dead ends: 9966 [2022-12-14 15:55:42,947 INFO L226 Difference]: Without dead ends: 6611 [2022-12-14 15:55:43,000 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 15:55:43,002 INFO L413 NwaCegarLoop]: 5579 mSDtfsCounter, 4809 mSDsluCounter, 4359 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4809 SdHoareTripleChecker+Valid, 9938 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 15:55:43,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4809 Valid, 9938 Invalid, 1217 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 15:55:43,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6611 states. [2022-12-14 15:55:43,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6611 to 6607. [2022-12-14 15:55:43,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6607 states, 3789 states have (on average 1.3101082079704407) internal successors, (4964), 3952 states have internal predecessors, (4964), 2389 states have call successors, (2389), 427 states have call predecessors, (2389), 426 states have return successors, (2385), 2335 states have call predecessors, (2385), 2385 states have call successors, (2385) [2022-12-14 15:55:43,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6607 states to 6607 states and 9738 transitions. [2022-12-14 15:55:43,300 INFO L78 Accepts]: Start accepts. Automaton has 6607 states and 9738 transitions. Word has length 343 [2022-12-14 15:55:43,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:55:43,301 INFO L495 AbstractCegarLoop]: Abstraction has 6607 states and 9738 transitions. [2022-12-14 15:55:43,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-12-14 15:55:43,302 INFO L276 IsEmpty]: Start isEmpty. Operand 6607 states and 9738 transitions. [2022-12-14 15:55:43,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2022-12-14 15:55:43,313 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:55:43,313 INFO L195 NwaCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:43,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:55:43,313 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 15:55:43,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:55:43,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1933178090, now seen corresponding path program 1 times [2022-12-14 15:55:43,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:55:43,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659116034] [2022-12-14 15:55:43,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:55:43,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:55:43,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:55:44,010 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4032 trivial. 0 not checked. [2022-12-14 15:55:44,011 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:55:44,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659116034] [2022-12-14 15:55:44,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659116034] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:55:44,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:55:44,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:55:44,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150451862] [2022-12-14 15:55:44,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:55:44,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:55:44,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:55:44,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:55:44,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:55:44,015 INFO L87 Difference]: Start difference. First operand 6607 states and 9738 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-12-14 15:55:47,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:55:47,937 INFO L93 Difference]: Finished difference Result 15909 states and 23413 transitions. [2022-12-14 15:55:47,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:55:47,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 370 [2022-12-14 15:55:47,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:55:47,978 INFO L225 Difference]: With dead ends: 15909 [2022-12-14 15:55:47,978 INFO L226 Difference]: Without dead ends: 9367 [2022-12-14 15:55:47,997 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 15:55:47,998 INFO L413 NwaCegarLoop]: 5479 mSDtfsCounter, 4427 mSDsluCounter, 4349 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4427 SdHoareTripleChecker+Valid, 9828 SdHoareTripleChecker+Invalid, 1253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-14 15:55:47,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4427 Valid, 9828 Invalid, 1253 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-12-14 15:55:48,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9367 states. [2022-12-14 15:55:48,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9367 to 9339. [2022-12-14 15:55:48,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9339 states, 5356 states have (on average 1.3052651232262882) internal successors, (6991), 5584 states have internal predecessors, (6991), 3358 states have call successors, (3358), 624 states have call predecessors, (3358), 622 states have return successors, (3354), 3276 states have call predecessors, (3354), 3354 states have call successors, (3354) [2022-12-14 15:55:48,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9339 states to 9339 states and 13703 transitions. [2022-12-14 15:55:48,389 INFO L78 Accepts]: Start accepts. Automaton has 9339 states and 13703 transitions. Word has length 370 [2022-12-14 15:55:48,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:55:48,390 INFO L495 AbstractCegarLoop]: Abstraction has 9339 states and 13703 transitions. [2022-12-14 15:55:48,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-12-14 15:55:48,391 INFO L276 IsEmpty]: Start isEmpty. Operand 9339 states and 13703 transitions. [2022-12-14 15:55:48,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2022-12-14 15:55:48,401 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:55:48,401 INFO L195 NwaCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:48,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 15:55:48,402 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 15:55:48,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:55:48,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1593814644, now seen corresponding path program 1 times [2022-12-14 15:55:48,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:55:48,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040466338] [2022-12-14 15:55:48,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:55:48,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:55:48,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:55:49,014 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4032 trivial. 0 not checked. [2022-12-14 15:55:49,014 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:55:49,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040466338] [2022-12-14 15:55:49,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040466338] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:55:49,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:55:49,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:55:49,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493575468] [2022-12-14 15:55:49,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:55:49,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:55:49,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:55:49,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:55:49,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:55:49,017 INFO L87 Difference]: Start difference. First operand 9339 states and 13703 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-12-14 15:55:52,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:55:52,841 INFO L93 Difference]: Finished difference Result 27335 states and 40107 transitions. [2022-12-14 15:55:52,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:55:52,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 371 [2022-12-14 15:55:52,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:55:52,922 INFO L225 Difference]: With dead ends: 27335 [2022-12-14 15:55:52,923 INFO L226 Difference]: Without dead ends: 18061 [2022-12-14 15:55:52,985 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 15:55:52,986 INFO L413 NwaCegarLoop]: 6340 mSDtfsCounter, 4643 mSDsluCounter, 4337 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4643 SdHoareTripleChecker+Valid, 10677 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-14 15:55:52,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4643 Valid, 10677 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-12-14 15:55:52,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18061 states. [2022-12-14 15:55:53,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18061 to 18027. [2022-12-14 15:55:53,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18027 states, 10332 states have (on average 1.2994579945799458) internal successors, (13426), 10773 states have internal predecessors, (13426), 6475 states have call successors, (6475), 1220 states have call predecessors, (6475), 1217 states have return successors, (6471), 6318 states have call predecessors, (6471), 6471 states have call successors, (6471) [2022-12-14 15:55:53,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18027 states to 18027 states and 26372 transitions. [2022-12-14 15:55:53,709 INFO L78 Accepts]: Start accepts. Automaton has 18027 states and 26372 transitions. Word has length 371 [2022-12-14 15:55:53,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:55:53,710 INFO L495 AbstractCegarLoop]: Abstraction has 18027 states and 26372 transitions. [2022-12-14 15:55:53,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-12-14 15:55:53,711 INFO L276 IsEmpty]: Start isEmpty. Operand 18027 states and 26372 transitions. [2022-12-14 15:55:53,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-12-14 15:55:53,719 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:55:53,719 INFO L195 NwaCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:53,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 15:55:53,720 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 15:55:53,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:55:53,720 INFO L85 PathProgramCache]: Analyzing trace with hash -843669177, now seen corresponding path program 1 times [2022-12-14 15:55:53,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:55:53,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200727628] [2022-12-14 15:55:53,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:55:53,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:55:53,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:55:54,112 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4032 trivial. 0 not checked. [2022-12-14 15:55:54,113 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:55:54,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200727628] [2022-12-14 15:55:54,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200727628] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:55:54,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:55:54,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:55:54,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243766588] [2022-12-14 15:55:54,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:55:54,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:55:54,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:55:54,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:55:54,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:55:54,116 INFO L87 Difference]: Start difference. First operand 18027 states and 26372 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-12-14 15:55:57,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:55:58,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:55:58,871 INFO L93 Difference]: Finished difference Result 43876 states and 63729 transitions. [2022-12-14 15:55:58,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:55:58,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 373 [2022-12-14 15:55:58,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:55:58,971 INFO L225 Difference]: With dead ends: 43876 [2022-12-14 15:55:58,971 INFO L226 Difference]: Without dead ends: 25914 [2022-12-14 15:55:59,022 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 15:55:59,023 INFO L413 NwaCegarLoop]: 5391 mSDtfsCounter, 3731 mSDsluCounter, 4332 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3731 SdHoareTripleChecker+Valid, 9723 SdHoareTripleChecker+Invalid, 1259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 15:55:59,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3731 Valid, 9723 Invalid, 1259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1252 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 15:55:59,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25914 states. [2022-12-14 15:56:00,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25914 to 25881. [2022-12-14 15:56:00,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25881 states, 14561 states have (on average 1.2762859693702355) internal successors, (18584), 15199 states have internal predecessors, (18584), 9395 states have call successors, (9395), 1930 states have call predecessors, (9395), 1922 states have return successors, (9401), 9158 states have call predecessors, (9401), 9391 states have call successors, (9401) [2022-12-14 15:56:00,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25881 states to 25881 states and 37380 transitions. [2022-12-14 15:56:00,200 INFO L78 Accepts]: Start accepts. Automaton has 25881 states and 37380 transitions. Word has length 373 [2022-12-14 15:56:00,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:56:00,201 INFO L495 AbstractCegarLoop]: Abstraction has 25881 states and 37380 transitions. [2022-12-14 15:56:00,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-12-14 15:56:00,201 INFO L276 IsEmpty]: Start isEmpty. Operand 25881 states and 37380 transitions. [2022-12-14 15:56:00,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2022-12-14 15:56:00,210 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:56:00,210 INFO L195 NwaCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:56:00,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 15:56:00,211 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:56:00,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:56:00,211 INFO L85 PathProgramCache]: Analyzing trace with hash -497378793, now seen corresponding path program 1 times [2022-12-14 15:56:00,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:56:00,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083322030] [2022-12-14 15:56:00,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:56:00,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:56:00,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:56:00,684 INFO L134 CoverageAnalysis]: Checked inductivity of 4035 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4035 trivial. 0 not checked. [2022-12-14 15:56:00,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:56:00,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083322030] [2022-12-14 15:56:00,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083322030] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:56:00,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:56:00,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:56:00,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151342694] [2022-12-14 15:56:00,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:56:00,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:56:00,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:56:00,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:56:00,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:56:00,687 INFO L87 Difference]: Start difference. First operand 25881 states and 37380 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-12-14 15:56:04,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:56:04,617 INFO L93 Difference]: Finished difference Result 67341 states and 97391 transitions. [2022-12-14 15:56:04,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:56:04,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 395 [2022-12-14 15:56:04,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:56:04,795 INFO L225 Difference]: With dead ends: 67341 [2022-12-14 15:56:04,796 INFO L226 Difference]: Without dead ends: 41525 [2022-12-14 15:56:04,860 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 15:56:04,860 INFO L413 NwaCegarLoop]: 5842 mSDtfsCounter, 4790 mSDsluCounter, 4368 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4790 SdHoareTripleChecker+Valid, 10210 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-12-14 15:56:04,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4790 Valid, 10210 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1297 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-12-14 15:56:04,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41525 states. [2022-12-14 15:56:06,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41525 to 41481. [2022-12-14 15:56:06,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41481 states, 23571 states have (on average 1.2813626914428746) internal successors, (30203), 24604 states have internal predecessors, (30203), 14872 states have call successors, (14872), 3050 states have call predecessors, (14872), 3035 states have return successors, (14888), 14472 states have call predecessors, (14888), 14868 states have call successors, (14888) [2022-12-14 15:56:06,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41481 states to 41481 states and 59963 transitions. [2022-12-14 15:56:06,393 INFO L78 Accepts]: Start accepts. Automaton has 41481 states and 59963 transitions. Word has length 395 [2022-12-14 15:56:06,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:56:06,393 INFO L495 AbstractCegarLoop]: Abstraction has 41481 states and 59963 transitions. [2022-12-14 15:56:06,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-12-14 15:56:06,394 INFO L276 IsEmpty]: Start isEmpty. Operand 41481 states and 59963 transitions. [2022-12-14 15:56:06,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2022-12-14 15:56:06,397 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:56:06,398 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 4, 4, 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] [2022-12-14 15:56:06,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 15:56:06,398 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 15:56:06,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:56:06,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1020905774, now seen corresponding path program 1 times [2022-12-14 15:56:06,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:56:06,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496928906] [2022-12-14 15:56:06,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:56:06,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:56:06,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:56:07,242 INFO L134 CoverageAnalysis]: Checked inductivity of 4529 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4529 trivial. 0 not checked. [2022-12-14 15:56:07,243 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:56:07,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496928906] [2022-12-14 15:56:07,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496928906] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:56:07,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:56:07,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:56:07,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445377212] [2022-12-14 15:56:07,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:56:07,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:56:07,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:56:07,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:56:07,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:56:07,245 INFO L87 Difference]: Start difference. First operand 41481 states and 59963 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-12-14 15:56:11,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:56:11,873 INFO L93 Difference]: Finished difference Result 41788 states and 60240 transitions. [2022-12-14 15:56:11,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:56:11,874 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 399 [2022-12-14 15:56:11,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:56:12,008 INFO L225 Difference]: With dead ends: 41788 [2022-12-14 15:56:12,009 INFO L226 Difference]: Without dead ends: 41786 [2022-12-14 15:56:12,029 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 15:56:12,029 INFO L413 NwaCegarLoop]: 4411 mSDtfsCounter, 4867 mSDsluCounter, 8843 mSDsCounter, 0 mSdLazyCounter, 1814 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4881 SdHoareTripleChecker+Valid, 13254 SdHoareTripleChecker+Invalid, 1816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:56:12,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4881 Valid, 13254 Invalid, 1816 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1814 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 15:56:12,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41786 states. [2022-12-14 15:56:13,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41786 to 41784. [2022-12-14 15:56:13,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41784 states, 23750 states have (on average 1.2805473684210527) internal successors, (30413), 24799 states have internal predecessors, (30413), 14904 states have call successors, (14904), 3142 states have call predecessors, (14904), 3127 states have return successors, (14920), 14504 states have call predecessors, (14920), 14900 states have call successors, (14920) [2022-12-14 15:56:13,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41784 states to 41784 states and 60237 transitions. [2022-12-14 15:56:13,615 INFO L78 Accepts]: Start accepts. Automaton has 41784 states and 60237 transitions. Word has length 399 [2022-12-14 15:56:13,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:56:13,616 INFO L495 AbstractCegarLoop]: Abstraction has 41784 states and 60237 transitions. [2022-12-14 15:56:13,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-12-14 15:56:13,616 INFO L276 IsEmpty]: Start isEmpty. Operand 41784 states and 60237 transitions. [2022-12-14 15:56:13,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2022-12-14 15:56:13,620 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:56:13,620 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:56:13,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 15:56:13,620 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 15:56:13,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:56:13,621 INFO L85 PathProgramCache]: Analyzing trace with hash -464012287, now seen corresponding path program 1 times [2022-12-14 15:56:13,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:56:13,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559623216] [2022-12-14 15:56:13,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:56:13,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:56:13,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:56:14,377 INFO L134 CoverageAnalysis]: Checked inductivity of 4531 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4529 trivial. 0 not checked. [2022-12-14 15:56:14,377 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:56:14,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559623216] [2022-12-14 15:56:14,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559623216] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:56:14,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:56:14,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:56:14,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266545608] [2022-12-14 15:56:14,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:56:14,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:56:14,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:56:14,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:56:14,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:56:14,380 INFO L87 Difference]: Start difference. First operand 41784 states and 60237 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-12-14 15:56:19,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:56:19,475 INFO L93 Difference]: Finished difference Result 41790 states and 60242 transitions. [2022-12-14 15:56:19,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:56:19,476 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 404 [2022-12-14 15:56:19,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:56:19,615 INFO L225 Difference]: With dead ends: 41790 [2022-12-14 15:56:19,616 INFO L226 Difference]: Without dead ends: 41788 [2022-12-14 15:56:19,637 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 15:56:19,637 INFO L413 NwaCegarLoop]: 4393 mSDtfsCounter, 4880 mSDsluCounter, 8764 mSDsCounter, 0 mSdLazyCounter, 1804 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4893 SdHoareTripleChecker+Valid, 13157 SdHoareTripleChecker+Invalid, 1805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 15:56:19,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4893 Valid, 13157 Invalid, 1805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1804 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 15:56:19,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41788 states. [2022-12-14 15:56:21,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41788 to 41788. [2022-12-14 15:56:21,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41788 states, 23753 states have (on average 1.280511935334484) internal successors, (30416), 24802 states have internal predecessors, (30416), 14904 states have call successors, (14904), 3143 states have call predecessors, (14904), 3128 states have return successors, (14920), 14504 states have call predecessors, (14920), 14900 states have call successors, (14920) [2022-12-14 15:56:21,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41788 states to 41788 states and 60240 transitions. [2022-12-14 15:56:21,334 INFO L78 Accepts]: Start accepts. Automaton has 41788 states and 60240 transitions. Word has length 404 [2022-12-14 15:56:21,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:56:21,334 INFO L495 AbstractCegarLoop]: Abstraction has 41788 states and 60240 transitions. [2022-12-14 15:56:21,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-12-14 15:56:21,335 INFO L276 IsEmpty]: Start isEmpty. Operand 41788 states and 60240 transitions. [2022-12-14 15:56:21,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2022-12-14 15:56:21,339 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:56:21,339 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 4, 4, 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] [2022-12-14 15:56:21,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 15:56:21,340 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 15:56:21,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:56:21,340 INFO L85 PathProgramCache]: Analyzing trace with hash 513946610, now seen corresponding path program 1 times [2022-12-14 15:56:21,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:56:21,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501335104] [2022-12-14 15:56:21,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:56:21,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:56:21,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:56:22,046 INFO L134 CoverageAnalysis]: Checked inductivity of 4537 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4533 trivial. 0 not checked. [2022-12-14 15:56:22,046 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:56:22,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501335104] [2022-12-14 15:56:22,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501335104] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:56:22,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:56:22,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:56:22,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199958255] [2022-12-14 15:56:22,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:56:22,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:56:22,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:56:22,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:56:22,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:56:22,049 INFO L87 Difference]: Start difference. First operand 41788 states and 60240 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-12-14 15:56:27,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:56:27,453 INFO L93 Difference]: Finished difference Result 41794 states and 60245 transitions. [2022-12-14 15:56:27,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:56:27,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 409 [2022-12-14 15:56:27,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:56:27,648 INFO L225 Difference]: With dead ends: 41794 [2022-12-14 15:56:27,648 INFO L226 Difference]: Without dead ends: 41792 [2022-12-14 15:56:27,668 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 15:56:27,669 INFO L413 NwaCegarLoop]: 4393 mSDtfsCounter, 4880 mSDsluCounter, 8764 mSDsCounter, 0 mSdLazyCounter, 1804 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4892 SdHoareTripleChecker+Valid, 13157 SdHoareTripleChecker+Invalid, 1805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-12-14 15:56:27,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4892 Valid, 13157 Invalid, 1805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1804 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-12-14 15:56:27,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41792 states. [2022-12-14 15:56:29,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41792 to 41792. [2022-12-14 15:56:29,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41792 states, 23756 states have (on average 1.2804765111971712) internal successors, (30419), 24805 states have internal predecessors, (30419), 14904 states have call successors, (14904), 3144 states have call predecessors, (14904), 3129 states have return successors, (14920), 14504 states have call predecessors, (14920), 14900 states have call successors, (14920) [2022-12-14 15:56:29,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41792 states to 41792 states and 60243 transitions. [2022-12-14 15:56:29,547 INFO L78 Accepts]: Start accepts. Automaton has 41792 states and 60243 transitions. Word has length 409 [2022-12-14 15:56:29,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:56:29,548 INFO L495 AbstractCegarLoop]: Abstraction has 41792 states and 60243 transitions. [2022-12-14 15:56:29,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-12-14 15:56:29,548 INFO L276 IsEmpty]: Start isEmpty. Operand 41792 states and 60243 transitions. [2022-12-14 15:56:29,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2022-12-14 15:56:29,553 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:56:29,553 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:56:29,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 15:56:29,554 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 15:56:29,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:56:29,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1657708910, now seen corresponding path program 1 times [2022-12-14 15:56:29,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:56:29,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704270488] [2022-12-14 15:56:29,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:56:29,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:56:29,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:56:30,151 INFO L134 CoverageAnalysis]: Checked inductivity of 4553 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4547 trivial. 0 not checked. [2022-12-14 15:56:30,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:56:30,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704270488] [2022-12-14 15:56:30,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704270488] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:56:30,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:56:30,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:56:30,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805508741] [2022-12-14 15:56:30,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:56:30,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:56:30,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:56:30,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:56:30,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:56:30,154 INFO L87 Difference]: Start difference. First operand 41792 states and 60243 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-12-14 15:56:33,936 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 15:56:35,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:56:35,640 INFO L93 Difference]: Finished difference Result 41798 states and 60248 transitions. [2022-12-14 15:56:35,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:56:35,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 418 [2022-12-14 15:56:35,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:56:35,771 INFO L225 Difference]: With dead ends: 41798 [2022-12-14 15:56:35,771 INFO L226 Difference]: Without dead ends: 41796 [2022-12-14 15:56:35,789 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 15:56:35,789 INFO L413 NwaCegarLoop]: 4393 mSDtfsCounter, 4879 mSDsluCounter, 8764 mSDsCounter, 0 mSdLazyCounter, 1804 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4890 SdHoareTripleChecker+Valid, 13157 SdHoareTripleChecker+Invalid, 1805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:56:35,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4890 Valid, 13157 Invalid, 1805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1804 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 15:56:35,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41796 states. [2022-12-14 15:56:37,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41796 to 41796. [2022-12-14 15:56:37,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41796 states, 23759 states have (on average 1.2804410960057242) internal successors, (30422), 24808 states have internal predecessors, (30422), 14904 states have call successors, (14904), 3145 states have call predecessors, (14904), 3130 states have return successors, (14920), 14504 states have call predecessors, (14920), 14900 states have call successors, (14920) [2022-12-14 15:56:37,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41796 states to 41796 states and 60246 transitions. [2022-12-14 15:56:37,805 INFO L78 Accepts]: Start accepts. Automaton has 41796 states and 60246 transitions. Word has length 418 [2022-12-14 15:56:37,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:56:37,806 INFO L495 AbstractCegarLoop]: Abstraction has 41796 states and 60246 transitions. [2022-12-14 15:56:37,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-12-14 15:56:37,806 INFO L276 IsEmpty]: Start isEmpty. Operand 41796 states and 60246 transitions. [2022-12-14 15:56:37,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2022-12-14 15:56:37,811 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:56:37,812 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 5, 4, 4, 4, 4, 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] [2022-12-14 15:56:37,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 15:56:37,812 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 15:56:37,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:56:37,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1611528466, now seen corresponding path program 1 times [2022-12-14 15:56:37,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:56:37,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317960414] [2022-12-14 15:56:37,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:56:37,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:56:37,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:56:38,420 INFO L134 CoverageAnalysis]: Checked inductivity of 4561 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4553 trivial. 0 not checked. [2022-12-14 15:56:38,420 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:56:38,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317960414] [2022-12-14 15:56:38,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317960414] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:56:38,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:56:38,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:56:38,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399254691] [2022-12-14 15:56:38,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:56:38,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:56:38,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:56:38,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:56:38,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:56:38,422 INFO L87 Difference]: Start difference. First operand 41796 states and 60246 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-12-14 15:56:41,940 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 15:56:44,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:56:44,751 INFO L93 Difference]: Finished difference Result 41802 states and 60251 transitions. [2022-12-14 15:56:44,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:56:44,751 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 419 [2022-12-14 15:56:44,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:56:44,870 INFO L225 Difference]: With dead ends: 41802 [2022-12-14 15:56:44,871 INFO L226 Difference]: Without dead ends: 41800 [2022-12-14 15:56:44,887 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 15:56:44,888 INFO L413 NwaCegarLoop]: 4393 mSDtfsCounter, 4880 mSDsluCounter, 8764 mSDsCounter, 0 mSdLazyCounter, 1804 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4890 SdHoareTripleChecker+Valid, 13157 SdHoareTripleChecker+Invalid, 1805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-12-14 15:56:44,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4890 Valid, 13157 Invalid, 1805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1804 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-12-14 15:56:44,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41800 states. [2022-12-14 15:56:46,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41800 to 41800. [2022-12-14 15:56:46,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41800 states, 23762 states have (on average 1.2804056897567544) internal successors, (30425), 24811 states have internal predecessors, (30425), 14904 states have call successors, (14904), 3146 states have call predecessors, (14904), 3131 states have return successors, (14920), 14504 states have call predecessors, (14920), 14900 states have call successors, (14920) [2022-12-14 15:56:46,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41800 states to 41800 states and 60249 transitions. [2022-12-14 15:56:47,001 INFO L78 Accepts]: Start accepts. Automaton has 41800 states and 60249 transitions. Word has length 419 [2022-12-14 15:56:47,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:56:47,002 INFO L495 AbstractCegarLoop]: Abstraction has 41800 states and 60249 transitions. [2022-12-14 15:56:47,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-12-14 15:56:47,002 INFO L276 IsEmpty]: Start isEmpty. Operand 41800 states and 60249 transitions. [2022-12-14 15:56:47,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2022-12-14 15:56:47,007 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:56:47,007 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:56:47,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 15:56:47,007 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 15:56:47,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:56:47,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1174599848, now seen corresponding path program 1 times [2022-12-14 15:56:47,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:56:47,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485798646] [2022-12-14 15:56:47,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:56:47,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:56:47,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:56:47,588 INFO L134 CoverageAnalysis]: Checked inductivity of 4584 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4574 trivial. 0 not checked. [2022-12-14 15:56:47,588 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:56:47,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485798646] [2022-12-14 15:56:47,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485798646] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:56:47,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:56:47,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:56:47,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185410852] [2022-12-14 15:56:47,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:56:47,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:56:47,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:56:47,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:56:47,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:56:47,590 INFO L87 Difference]: Start difference. First operand 41800 states and 60249 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-12-14 15:56:52,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:56:54,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:56:54,453 INFO L93 Difference]: Finished difference Result 41806 states and 60254 transitions. [2022-12-14 15:56:54,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:56:54,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 427 [2022-12-14 15:56:54,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:56:54,578 INFO L225 Difference]: With dead ends: 41806 [2022-12-14 15:56:54,578 INFO L226 Difference]: Without dead ends: 41804 [2022-12-14 15:56:54,597 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 15:56:54,598 INFO L413 NwaCegarLoop]: 4393 mSDtfsCounter, 4879 mSDsluCounter, 8764 mSDsCounter, 0 mSdLazyCounter, 1804 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4888 SdHoareTripleChecker+Valid, 13157 SdHoareTripleChecker+Invalid, 1805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-12-14 15:56:54,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4888 Valid, 13157 Invalid, 1805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1804 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-12-14 15:56:54,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41804 states. [2022-12-14 15:56:56,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41804 to 41804. [2022-12-14 15:56:56,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41804 states, 23765 states have (on average 1.2803702924468756) internal successors, (30428), 24814 states have internal predecessors, (30428), 14904 states have call successors, (14904), 3147 states have call predecessors, (14904), 3132 states have return successors, (14920), 14504 states have call predecessors, (14920), 14900 states have call successors, (14920) [2022-12-14 15:56:56,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41804 states to 41804 states and 60252 transitions. [2022-12-14 15:56:56,886 INFO L78 Accepts]: Start accepts. Automaton has 41804 states and 60252 transitions. Word has length 427 [2022-12-14 15:56:56,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:56:56,887 INFO L495 AbstractCegarLoop]: Abstraction has 41804 states and 60252 transitions. [2022-12-14 15:56:56,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-12-14 15:56:56,887 INFO L276 IsEmpty]: Start isEmpty. Operand 41804 states and 60252 transitions. [2022-12-14 15:56:56,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2022-12-14 15:56:56,894 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:56:56,894 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:56:56,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 15:56:56,895 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 15:56:56,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:56:56,895 INFO L85 PathProgramCache]: Analyzing trace with hash -579780127, now seen corresponding path program 1 times [2022-12-14 15:56:56,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:56:56,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086729049] [2022-12-14 15:56:56,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:56:56,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:56:56,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:56:57,464 INFO L134 CoverageAnalysis]: Checked inductivity of 4607 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4595 trivial. 0 not checked. [2022-12-14 15:56:57,464 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:56:57,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086729049] [2022-12-14 15:56:57,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086729049] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:56:57,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:56:57,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:56:57,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943842856] [2022-12-14 15:56:57,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:56:57,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:56:57,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:56:57,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:56:57,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:56:57,466 INFO L87 Difference]: Start difference. First operand 41804 states and 60252 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-12-14 15:57:02,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:57:02,784 INFO L93 Difference]: Finished difference Result 41810 states and 60257 transitions. [2022-12-14 15:57:02,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:57:02,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 433 [2022-12-14 15:57:02,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:57:02,903 INFO L225 Difference]: With dead ends: 41810 [2022-12-14 15:57:02,903 INFO L226 Difference]: Without dead ends: 41808 [2022-12-14 15:57:02,920 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 15:57:02,920 INFO L413 NwaCegarLoop]: 4393 mSDtfsCounter, 4879 mSDsluCounter, 8764 mSDsCounter, 0 mSdLazyCounter, 1804 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4887 SdHoareTripleChecker+Valid, 13157 SdHoareTripleChecker+Invalid, 1805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:57:02,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4887 Valid, 13157 Invalid, 1805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1804 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-12-14 15:57:02,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41808 states. [2022-12-14 15:57:05,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41808 to 41808. [2022-12-14 15:57:05,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41808 states, 23768 states have (on average 1.2803349040727028) internal successors, (30431), 24817 states have internal predecessors, (30431), 14904 states have call successors, (14904), 3148 states have call predecessors, (14904), 3133 states have return successors, (14920), 14504 states have call predecessors, (14920), 14900 states have call successors, (14920) [2022-12-14 15:57:05,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41808 states to 41808 states and 60255 transitions. [2022-12-14 15:57:05,324 INFO L78 Accepts]: Start accepts. Automaton has 41808 states and 60255 transitions. Word has length 433 [2022-12-14 15:57:05,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:57:05,324 INFO L495 AbstractCegarLoop]: Abstraction has 41808 states and 60255 transitions. [2022-12-14 15:57:05,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-12-14 15:57:05,324 INFO L276 IsEmpty]: Start isEmpty. Operand 41808 states and 60255 transitions. [2022-12-14 15:57:05,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2022-12-14 15:57:05,331 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:57:05,331 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 4, 4, 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] [2022-12-14 15:57:05,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 15:57:05,332 INFO L420 AbstractCegarLoop]: === Iteration 13 === 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 15:57:05,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:57:05,332 INFO L85 PathProgramCache]: Analyzing trace with hash 108681801, now seen corresponding path program 1 times [2022-12-14 15:57:05,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:57:05,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657276115] [2022-12-14 15:57:05,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:57:05,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:57:05,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:57:05,772 INFO L134 CoverageAnalysis]: Checked inductivity of 4521 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4518 trivial. 0 not checked. [2022-12-14 15:57:05,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:57:05,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657276115] [2022-12-14 15:57:05,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657276115] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:57:05,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:57:05,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:57:05,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335426153] [2022-12-14 15:57:05,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:57:05,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:57:05,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:57:05,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:57:05,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:57:05,774 INFO L87 Difference]: Start difference. First operand 41808 states and 60255 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-12-14 15:57:10,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:57:13,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:57:13,735 INFO L93 Difference]: Finished difference Result 101644 states and 146527 transitions. [2022-12-14 15:57:13,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:57:13,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 431 [2022-12-14 15:57:13,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:57:13,936 INFO L225 Difference]: With dead ends: 101644 [2022-12-14 15:57:13,936 INFO L226 Difference]: Without dead ends: 60241 [2022-12-14 15:57:14,040 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 15:57:14,040 INFO L413 NwaCegarLoop]: 6598 mSDtfsCounter, 4413 mSDsluCounter, 4353 mSDsCounter, 0 mSdLazyCounter, 1486 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4413 SdHoareTripleChecker+Valid, 10951 SdHoareTripleChecker+Invalid, 1501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-12-14 15:57:14,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4413 Valid, 10951 Invalid, 1501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1486 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-12-14 15:57:14,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60241 states. [2022-12-14 15:57:17,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60241 to 60171. [2022-12-14 15:57:17,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60171 states, 34241 states have (on average 1.2796355246634152) internal successors, (43816), 35743 states have internal predecessors, (43816), 21398 states have call successors, (21398), 4554 states have call predecessors, (21398), 4529 states have return successors, (21418), 20811 states have call predecessors, (21418), 21394 states have call successors, (21418) [2022-12-14 15:57:17,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60171 states to 60171 states and 86632 transitions. [2022-12-14 15:57:17,874 INFO L78 Accepts]: Start accepts. Automaton has 60171 states and 86632 transitions. Word has length 431 [2022-12-14 15:57:17,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:57:17,874 INFO L495 AbstractCegarLoop]: Abstraction has 60171 states and 86632 transitions. [2022-12-14 15:57:17,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-12-14 15:57:17,875 INFO L276 IsEmpty]: Start isEmpty. Operand 60171 states and 86632 transitions. [2022-12-14 15:57:17,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-12-14 15:57:17,881 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:57:17,881 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 8, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:57:17,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 15:57:17,882 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:57:17,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:57:17,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1619185874, now seen corresponding path program 1 times [2022-12-14 15:57:17,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:57:17,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47863878] [2022-12-14 15:57:17,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:57:17,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:57:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:57:18,524 INFO L134 CoverageAnalysis]: Checked inductivity of 4633 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4619 trivial. 0 not checked. [2022-12-14 15:57:18,525 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:57:18,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47863878] [2022-12-14 15:57:18,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47863878] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:57:18,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:57:18,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:57:18,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094497176] [2022-12-14 15:57:18,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:57:18,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:57:18,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:57:18,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:57:18,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:57:18,527 INFO L87 Difference]: Start difference. First operand 60171 states and 86632 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-12-14 15:57:24,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:57:24,832 INFO L93 Difference]: Finished difference Result 60177 states and 86637 transitions. [2022-12-14 15:57:24,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:57:24,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 438 [2022-12-14 15:57:24,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:57:25,019 INFO L225 Difference]: With dead ends: 60177 [2022-12-14 15:57:25,019 INFO L226 Difference]: Without dead ends: 60175 [2022-12-14 15:57:25,039 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 15:57:25,039 INFO L413 NwaCegarLoop]: 4393 mSDtfsCounter, 4879 mSDsluCounter, 8764 mSDsCounter, 0 mSdLazyCounter, 1804 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4886 SdHoareTripleChecker+Valid, 13157 SdHoareTripleChecker+Invalid, 1805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-14 15:57:25,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4886 Valid, 13157 Invalid, 1805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1804 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-12-14 15:57:25,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60175 states. [2022-12-14 15:57:28,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60175 to 60175. [2022-12-14 15:57:28,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60175 states, 34244 states have (on average 1.2796110267492116) internal successors, (43819), 35746 states have internal predecessors, (43819), 21398 states have call successors, (21398), 4555 states have call predecessors, (21398), 4530 states have return successors, (21418), 20811 states have call predecessors, (21418), 21394 states have call successors, (21418) [2022-12-14 15:57:29,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60175 states to 60175 states and 86635 transitions. [2022-12-14 15:57:29,021 INFO L78 Accepts]: Start accepts. Automaton has 60175 states and 86635 transitions. Word has length 438 [2022-12-14 15:57:29,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:57:29,022 INFO L495 AbstractCegarLoop]: Abstraction has 60175 states and 86635 transitions. [2022-12-14 15:57:29,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-12-14 15:57:29,022 INFO L276 IsEmpty]: Start isEmpty. Operand 60175 states and 86635 transitions. [2022-12-14 15:57:29,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2022-12-14 15:57:29,029 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:57:29,029 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:57:29,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 15:57:29,029 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 15:57:29,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:57:29,030 INFO L85 PathProgramCache]: Analyzing trace with hash 194447425, now seen corresponding path program 1 times [2022-12-14 15:57:29,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:57:29,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686350613] [2022-12-14 15:57:29,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:57:29,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:57:29,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:57:29,606 INFO L134 CoverageAnalysis]: Checked inductivity of 4663 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4647 trivial. 0 not checked. [2022-12-14 15:57:29,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:57:29,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686350613] [2022-12-14 15:57:29,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686350613] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:57:29,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:57:29,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:57:29,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538849249] [2022-12-14 15:57:29,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:57:29,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:57:29,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:57:29,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:57:29,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:57:29,608 INFO L87 Difference]: Start difference. First operand 60175 states and 86635 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-12-14 15:57:37,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:57:37,280 INFO L93 Difference]: Finished difference Result 60181 states and 86640 transitions. [2022-12-14 15:57:37,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:57:37,281 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 443 [2022-12-14 15:57:37,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:57:37,463 INFO L225 Difference]: With dead ends: 60181 [2022-12-14 15:57:37,463 INFO L226 Difference]: Without dead ends: 60179 [2022-12-14 15:57:37,485 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 15:57:37,485 INFO L413 NwaCegarLoop]: 4393 mSDtfsCounter, 4879 mSDsluCounter, 8764 mSDsCounter, 0 mSdLazyCounter, 1804 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4885 SdHoareTripleChecker+Valid, 13157 SdHoareTripleChecker+Invalid, 1805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-12-14 15:57:37,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4885 Valid, 13157 Invalid, 1805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1804 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-12-14 15:57:37,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60179 states. [2022-12-14 15:57:41,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60179 to 60179. [2022-12-14 15:57:41,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60179 states, 34247 states have (on average 1.2795865331269893) internal successors, (43822), 35749 states have internal predecessors, (43822), 21398 states have call successors, (21398), 4556 states have call predecessors, (21398), 4531 states have return successors, (21418), 20811 states have call predecessors, (21418), 21394 states have call successors, (21418) [2022-12-14 15:57:41,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60179 states to 60179 states and 86638 transitions. [2022-12-14 15:57:41,411 INFO L78 Accepts]: Start accepts. Automaton has 60179 states and 86638 transitions. Word has length 443 [2022-12-14 15:57:41,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:57:41,411 INFO L495 AbstractCegarLoop]: Abstraction has 60179 states and 86638 transitions. [2022-12-14 15:57:41,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-12-14 15:57:41,412 INFO L276 IsEmpty]: Start isEmpty. Operand 60179 states and 86638 transitions. [2022-12-14 15:57:41,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2022-12-14 15:57:41,419 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:57:41,419 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 10, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:57:41,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 15:57:41,420 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 15:57:41,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:57:41,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1982850024, now seen corresponding path program 1 times [2022-12-14 15:57:41,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:57:41,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875063618] [2022-12-14 15:57:41,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:57:41,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:57:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:57:42,050 INFO L134 CoverageAnalysis]: Checked inductivity of 4696 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4678 trivial. 0 not checked. [2022-12-14 15:57:42,050 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:57:42,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875063618] [2022-12-14 15:57:42,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875063618] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:57:42,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:57:42,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:57:42,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79089232] [2022-12-14 15:57:42,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:57:42,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:57:42,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:57:42,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:57:42,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:57:42,052 INFO L87 Difference]: Start difference. First operand 60179 states and 86638 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-12-14 15:57:49,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:57:49,172 INFO L93 Difference]: Finished difference Result 61433 states and 87808 transitions. [2022-12-14 15:57:49,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:57:49,175 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 447 [2022-12-14 15:57:49,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:57:49,402 INFO L225 Difference]: With dead ends: 61433 [2022-12-14 15:57:49,402 INFO L226 Difference]: Without dead ends: 61431 [2022-12-14 15:57:49,431 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 15:57:49,431 INFO L413 NwaCegarLoop]: 4424 mSDtfsCounter, 4426 mSDsluCounter, 9301 mSDsCounter, 0 mSdLazyCounter, 1852 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4431 SdHoareTripleChecker+Valid, 13725 SdHoareTripleChecker+Invalid, 1854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-12-14 15:57:49,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4431 Valid, 13725 Invalid, 1854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1852 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-12-14 15:57:49,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61431 states. [2022-12-14 15:57:53,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61431 to 61429. [2022-12-14 15:57:53,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61429 states, 34940 states have (on average 1.2762736119061249) internal successors, (44593), 36442 states have internal predecessors, (44593), 21596 states have call successors, (21596), 4915 states have call predecessors, (21596), 4890 states have return successors, (21616), 21009 states have call predecessors, (21616), 21592 states have call successors, (21616) [2022-12-14 15:57:53,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61429 states to 61429 states and 87805 transitions. [2022-12-14 15:57:53,607 INFO L78 Accepts]: Start accepts. Automaton has 61429 states and 87805 transitions. Word has length 447 [2022-12-14 15:57:53,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:57:53,608 INFO L495 AbstractCegarLoop]: Abstraction has 61429 states and 87805 transitions. [2022-12-14 15:57:53,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-12-14 15:57:53,608 INFO L276 IsEmpty]: Start isEmpty. Operand 61429 states and 87805 transitions. [2022-12-14 15:57:53,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2022-12-14 15:57:53,617 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:57:53,617 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 11, 10, 10, 4, 4, 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] [2022-12-14 15:57:53,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 15:57:53,618 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 15:57:53,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:57:53,618 INFO L85 PathProgramCache]: Analyzing trace with hash -479463310, now seen corresponding path program 1 times [2022-12-14 15:57:53,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:57:53,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916595954] [2022-12-14 15:57:53,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:57:53,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:57:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:57:54,232 INFO L134 CoverageAnalysis]: Checked inductivity of 4729 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 4709 trivial. 0 not checked. [2022-12-14 15:57:54,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:57:54,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916595954] [2022-12-14 15:57:54,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916595954] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:57:54,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:57:54,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:57:54,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863639603] [2022-12-14 15:57:54,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:57:54,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:57:54,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:57:54,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:57:54,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:57:54,233 INFO L87 Difference]: Start difference. First operand 61429 states and 87805 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-12-14 15:58:01,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:58:01,131 INFO L93 Difference]: Finished difference Result 61435 states and 87810 transitions. [2022-12-14 15:58:01,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:58:01,133 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 449 [2022-12-14 15:58:01,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:58:01,317 INFO L225 Difference]: With dead ends: 61435 [2022-12-14 15:58:01,317 INFO L226 Difference]: Without dead ends: 61433 [2022-12-14 15:58:01,340 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 15:58:01,340 INFO L413 NwaCegarLoop]: 4393 mSDtfsCounter, 4880 mSDsluCounter, 8764 mSDsCounter, 0 mSdLazyCounter, 1804 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4884 SdHoareTripleChecker+Valid, 13157 SdHoareTripleChecker+Invalid, 1805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-14 15:58:01,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4884 Valid, 13157 Invalid, 1805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1804 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-12-14 15:58:01,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61433 states. [2022-12-14 15:58:06,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61433 to 61433. [2022-12-14 15:58:06,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61433 states, 34943 states have (on average 1.2762498926823684) internal successors, (44596), 36445 states have internal predecessors, (44596), 21596 states have call successors, (21596), 4916 states have call predecessors, (21596), 4891 states have return successors, (21616), 21009 states have call predecessors, (21616), 21592 states have call successors, (21616) [2022-12-14 15:58:06,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61433 states to 61433 states and 87808 transitions. [2022-12-14 15:58:06,291 INFO L78 Accepts]: Start accepts. Automaton has 61433 states and 87808 transitions. Word has length 449 [2022-12-14 15:58:06,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:58:06,291 INFO L495 AbstractCegarLoop]: Abstraction has 61433 states and 87808 transitions. [2022-12-14 15:58:06,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-12-14 15:58:06,292 INFO L276 IsEmpty]: Start isEmpty. Operand 61433 states and 87808 transitions. [2022-12-14 15:58:06,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2022-12-14 15:58:06,305 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:58:06,305 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 12, 11, 11, 4, 4, 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] [2022-12-14 15:58:06,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 15:58:06,305 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:58:06,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:58:06,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1867715615, now seen corresponding path program 1 times [2022-12-14 15:58:06,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:58:06,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638760061] [2022-12-14 15:58:06,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:58:06,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:58:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:58:06,933 INFO L134 CoverageAnalysis]: Checked inductivity of 4771 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 4749 trivial. 0 not checked. [2022-12-14 15:58:06,933 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:58:06,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638760061] [2022-12-14 15:58:06,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638760061] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:58:06,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:58:06,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:58:06,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473259810] [2022-12-14 15:58:06,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:58:06,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:58:06,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:58:06,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:58:06,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:58:06,934 INFO L87 Difference]: Start difference. First operand 61433 states and 87808 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-12-14 15:58:14,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:58:14,050 INFO L93 Difference]: Finished difference Result 61439 states and 87813 transitions. [2022-12-14 15:58:14,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:58:14,051 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 454 [2022-12-14 15:58:14,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:58:14,241 INFO L225 Difference]: With dead ends: 61439 [2022-12-14 15:58:14,242 INFO L226 Difference]: Without dead ends: 61437 [2022-12-14 15:58:14,268 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 15:58:14,268 INFO L413 NwaCegarLoop]: 4393 mSDtfsCounter, 4880 mSDsluCounter, 8764 mSDsCounter, 0 mSdLazyCounter, 1804 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4883 SdHoareTripleChecker+Valid, 13157 SdHoareTripleChecker+Invalid, 1805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-14 15:58:14,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4883 Valid, 13157 Invalid, 1805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1804 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-12-14 15:58:14,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61437 states. [2022-12-14 15:58:18,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61437 to 61437. [2022-12-14 15:58:18,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61437 states, 34946 states have (on average 1.276226177531048) internal successors, (44599), 36448 states have internal predecessors, (44599), 21596 states have call successors, (21596), 4917 states have call predecessors, (21596), 4892 states have return successors, (21616), 21009 states have call predecessors, (21616), 21592 states have call successors, (21616) [2022-12-14 15:58:18,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61437 states to 61437 states and 87811 transitions. [2022-12-14 15:58:18,943 INFO L78 Accepts]: Start accepts. Automaton has 61437 states and 87811 transitions. Word has length 454 [2022-12-14 15:58:18,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:58:18,944 INFO L495 AbstractCegarLoop]: Abstraction has 61437 states and 87811 transitions. [2022-12-14 15:58:18,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-12-14 15:58:18,944 INFO L276 IsEmpty]: Start isEmpty. Operand 61437 states and 87811 transitions. [2022-12-14 15:58:18,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2022-12-14 15:58:18,956 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:58:18,956 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 13, 12, 12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:58:18,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 15:58:18,956 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:58:18,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:58:18,957 INFO L85 PathProgramCache]: Analyzing trace with hash -335797173, now seen corresponding path program 1 times [2022-12-14 15:58:18,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:58:18,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817765376] [2022-12-14 15:58:18,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:58:18,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:58:19,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:58:19,534 INFO L134 CoverageAnalysis]: Checked inductivity of 4822 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 4798 trivial. 0 not checked. [2022-12-14 15:58:19,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:58:19,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817765376] [2022-12-14 15:58:19,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817765376] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:58:19,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:58:19,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:58:19,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532348722] [2022-12-14 15:58:19,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:58:19,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:58:19,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:58:19,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:58:19,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:58:19,536 INFO L87 Difference]: Start difference. First operand 61437 states and 87811 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-12-14 15:58:27,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:58:27,513 INFO L93 Difference]: Finished difference Result 61443 states and 87816 transitions. [2022-12-14 15:58:27,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:58:27,516 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 462 [2022-12-14 15:58:27,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:58:27,691 INFO L225 Difference]: With dead ends: 61443 [2022-12-14 15:58:27,691 INFO L226 Difference]: Without dead ends: 61441 [2022-12-14 15:58:27,711 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 15:58:27,712 INFO L413 NwaCegarLoop]: 4393 mSDtfsCounter, 4879 mSDsluCounter, 8764 mSDsCounter, 0 mSdLazyCounter, 1804 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4881 SdHoareTripleChecker+Valid, 13157 SdHoareTripleChecker+Invalid, 1805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 15:58:27,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4881 Valid, 13157 Invalid, 1805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1804 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 15:58:27,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61441 states. [2022-12-14 15:58:32,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61441 to 61441. [2022-12-14 15:58:32,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61441 states, 34949 states have (on average 1.2762024664511145) internal successors, (44602), 36451 states have internal predecessors, (44602), 21596 states have call successors, (21596), 4918 states have call predecessors, (21596), 4893 states have return successors, (21616), 21009 states have call predecessors, (21616), 21592 states have call successors, (21616) [2022-12-14 15:58:32,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61441 states to 61441 states and 87814 transitions. [2022-12-14 15:58:32,579 INFO L78 Accepts]: Start accepts. Automaton has 61441 states and 87814 transitions. Word has length 462 [2022-12-14 15:58:32,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:58:32,579 INFO L495 AbstractCegarLoop]: Abstraction has 61441 states and 87814 transitions. [2022-12-14 15:58:32,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-12-14 15:58:32,580 INFO L276 IsEmpty]: Start isEmpty. Operand 61441 states and 87814 transitions. [2022-12-14 15:58:32,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2022-12-14 15:58:32,591 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:58:32,591 INFO L195 NwaCegarLoop]: trace histogram [38, 33, 33, 33, 33, 33, 33, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:58:32,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 15:58:32,592 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 15:58:32,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:58:32,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1682135841, now seen corresponding path program 1 times [2022-12-14 15:58:32,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:58:32,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892617186] [2022-12-14 15:58:32,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:58:32,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:58:32,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:58:32,898 INFO L134 CoverageAnalysis]: Checked inductivity of 4635 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4628 trivial. 0 not checked. [2022-12-14 15:58:32,898 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:58:32,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892617186] [2022-12-14 15:58:32,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892617186] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:58:32,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:58:32,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:58:32,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518946453] [2022-12-14 15:58:32,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:58:32,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:58:32,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:58:32,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:58:32,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:58:32,901 INFO L87 Difference]: Start difference. First operand 61441 states and 87814 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2022-12-14 15:58:38,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:58:43,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:58:43,552 INFO L93 Difference]: Finished difference Result 150791 states and 215574 transitions. [2022-12-14 15:58:43,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:58:43,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) Word has length 468 [2022-12-14 15:58:43,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:58:43,841 INFO L225 Difference]: With dead ends: 150791 [2022-12-14 15:58:43,841 INFO L226 Difference]: Without dead ends: 89755 [2022-12-14 15:58:44,003 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 15:58:44,004 INFO L413 NwaCegarLoop]: 8613 mSDtfsCounter, 4790 mSDsluCounter, 4366 mSDsCounter, 0 mSdLazyCounter, 1800 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4790 SdHoareTripleChecker+Valid, 12979 SdHoareTripleChecker+Invalid, 1809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:58:44,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4790 Valid, 12979 Invalid, 1809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1800 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-12-14 15:58:44,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89755 states. [2022-12-14 15:58:51,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89755 to 89651. [2022-12-14 15:58:51,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89651 states, 51081 states have (on average 1.2767173704508525) internal successors, (65216), 53281 states have internal predecessors, (65216), 31428 states have call successors, (31428), 7176 states have call predecessors, (31428), 7139 states have return successors, (31460), 30559 states have call predecessors, (31460), 31424 states have call successors, (31460) [2022-12-14 15:58:51,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89651 states to 89651 states and 128104 transitions. [2022-12-14 15:58:51,928 INFO L78 Accepts]: Start accepts. Automaton has 89651 states and 128104 transitions. Word has length 468 [2022-12-14 15:58:51,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:58:51,929 INFO L495 AbstractCegarLoop]: Abstraction has 89651 states and 128104 transitions. [2022-12-14 15:58:51,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2022-12-14 15:58:51,929 INFO L276 IsEmpty]: Start isEmpty. Operand 89651 states and 128104 transitions. [2022-12-14 15:58:51,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2022-12-14 15:58:51,938 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:58:51,938 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 14, 13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:58:51,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 15:58:51,938 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:58:51,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:58:51,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1501145038, now seen corresponding path program 1 times [2022-12-14 15:58:51,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:58:51,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970864336] [2022-12-14 15:58:51,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:58:51,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:58:52,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:58:52,539 INFO L134 CoverageAnalysis]: Checked inductivity of 4873 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 4847 trivial. 0 not checked. [2022-12-14 15:58:52,539 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:58:52,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970864336] [2022-12-14 15:58:52,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970864336] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:58:52,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:58:52,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:58:52,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935455318] [2022-12-14 15:58:52,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:58:52,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:58:52,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:58:52,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:58:52,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:58:52,541 INFO L87 Difference]: Start difference. First operand 89651 states and 128104 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (59), 3 states have call predecessors, (59), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-12-14 15:59:03,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:59:03,443 INFO L93 Difference]: Finished difference Result 89657 states and 128109 transitions. [2022-12-14 15:59:03,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:59:03,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (59), 3 states have call predecessors, (59), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 468 [2022-12-14 15:59:03,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:59:03,728 INFO L225 Difference]: With dead ends: 89657 [2022-12-14 15:59:03,728 INFO L226 Difference]: Without dead ends: 89653 [2022-12-14 15:59:03,759 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 15:59:03,760 INFO L413 NwaCegarLoop]: 4393 mSDtfsCounter, 4879 mSDsluCounter, 8764 mSDsCounter, 0 mSdLazyCounter, 1804 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4880 SdHoareTripleChecker+Valid, 13157 SdHoareTripleChecker+Invalid, 1805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 15:59:03,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4880 Valid, 13157 Invalid, 1805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1804 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 15:59:03,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89653 states. [2022-12-14 15:59:11,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89653 to 89653. [2022-12-14 15:59:11,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89653 states, 51083 states have (on average 1.276686960436936) internal successors, (65217), 53282 states have internal predecessors, (65217), 31428 states have call successors, (31428), 7177 states have call predecessors, (31428), 7139 states have return successors, (31460), 30559 states have call predecessors, (31460), 31424 states have call successors, (31460) [2022-12-14 15:59:11,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89653 states to 89653 states and 128105 transitions. [2022-12-14 15:59:11,905 INFO L78 Accepts]: Start accepts. Automaton has 89653 states and 128105 transitions. Word has length 468 [2022-12-14 15:59:11,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:59:11,906 INFO L495 AbstractCegarLoop]: Abstraction has 89653 states and 128105 transitions. [2022-12-14 15:59:11,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (59), 3 states have call predecessors, (59), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-12-14 15:59:11,906 INFO L276 IsEmpty]: Start isEmpty. Operand 89653 states and 128105 transitions. [2022-12-14 15:59:11,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2022-12-14 15:59:11,915 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:59:11,915 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 15, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:59:11,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 15:59:11,916 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:59:11,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:59:11,916 INFO L85 PathProgramCache]: Analyzing trace with hash 305113953, now seen corresponding path program 1 times [2022-12-14 15:59:11,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:59:11,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533568113] [2022-12-14 15:59:11,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:59:11,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:59:12,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:59:12,490 INFO L134 CoverageAnalysis]: Checked inductivity of 4927 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 4899 trivial. 0 not checked. [2022-12-14 15:59:12,490 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:59:12,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533568113] [2022-12-14 15:59:12,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533568113] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:59:12,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:59:12,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:59:12,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745793737] [2022-12-14 15:59:12,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:59:12,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:59:12,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:59:12,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:59:12,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:59:12,492 INFO L87 Difference]: Start difference. First operand 89653 states and 128105 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (60), 3 states have call predecessors, (60), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2022-12-14 15:59:18,643 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 15:59:24,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:59:24,450 INFO L93 Difference]: Finished difference Result 90581 states and 129001 transitions. [2022-12-14 15:59:24,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:59:24,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (60), 3 states have call predecessors, (60), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 473 [2022-12-14 15:59:24,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:59:24,749 INFO L225 Difference]: With dead ends: 90581 [2022-12-14 15:59:24,749 INFO L226 Difference]: Without dead ends: 90155 [2022-12-14 15:59:24,784 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 15:59:24,785 INFO L413 NwaCegarLoop]: 4401 mSDtfsCounter, 4838 mSDsluCounter, 8855 mSDsCounter, 0 mSdLazyCounter, 1815 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4840 SdHoareTripleChecker+Valid, 13256 SdHoareTripleChecker+Invalid, 1818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1815 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-12-14 15:59:24,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4840 Valid, 13256 Invalid, 1818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1815 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-12-14 15:59:24,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90155 states. [2022-12-14 15:59:34,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90155 to 90127. [2022-12-14 15:59:34,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90127 states, 51458 states have (on average 1.2738544055346108) internal successors, (65550), 53549 states have internal predecessors, (65550), 31302 states have call successors, (31302), 7377 states have call predecessors, (31302), 7365 states have return successors, (31338), 30566 states have call predecessors, (31338), 31302 states have call successors, (31338) [2022-12-14 15:59:34,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90127 states to 90127 states and 128190 transitions. [2022-12-14 15:59:34,381 INFO L78 Accepts]: Start accepts. Automaton has 90127 states and 128190 transitions. Word has length 473 [2022-12-14 15:59:34,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:59:34,382 INFO L495 AbstractCegarLoop]: Abstraction has 90127 states and 128190 transitions. [2022-12-14 15:59:34,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (60), 3 states have call predecessors, (60), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2022-12-14 15:59:34,382 INFO L276 IsEmpty]: Start isEmpty. Operand 90127 states and 128190 transitions. [2022-12-14 15:59:34,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2022-12-14 15:59:34,394 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:59:34,395 INFO L195 NwaCegarLoop]: trace histogram [39, 33, 33, 33, 33, 33, 33, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:59:34,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 15:59:34,395 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 15:59:34,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:59:34,395 INFO L85 PathProgramCache]: Analyzing trace with hash -703903849, now seen corresponding path program 1 times [2022-12-14 15:59:34,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:59:34,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905889844] [2022-12-14 15:59:34,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:59:34,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:59:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:59:35,629 INFO L134 CoverageAnalysis]: Checked inductivity of 4762 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4762 trivial. 0 not checked. [2022-12-14 15:59:35,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:59:35,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905889844] [2022-12-14 15:59:35,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905889844] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:59:35,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:59:35,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:59:35,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662675082] [2022-12-14 15:59:35,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:59:35,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:59:35,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:59:35,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:59:35,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:59:35,632 INFO L87 Difference]: Start difference. First operand 90127 states and 128190 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-12-14 15:59:41,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:59:47,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:59:47,465 INFO L93 Difference]: Finished difference Result 90259 states and 128320 transitions. [2022-12-14 15:59:47,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:59:47,467 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 495 [2022-12-14 15:59:47,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:59:47,754 INFO L225 Difference]: With dead ends: 90259 [2022-12-14 15:59:47,754 INFO L226 Difference]: Without dead ends: 90257 [2022-12-14 15:59:47,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 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 15:59:47,790 INFO L413 NwaCegarLoop]: 4363 mSDtfsCounter, 4330 mSDsluCounter, 9197 mSDsCounter, 0 mSdLazyCounter, 1825 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4333 SdHoareTripleChecker+Valid, 13560 SdHoareTripleChecker+Invalid, 1827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-12-14 15:59:47,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4333 Valid, 13560 Invalid, 1827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1825 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-12-14 15:59:47,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90257 states. [2022-12-14 15:59:55,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90257 to 90255. [2022-12-14 15:59:55,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90255 states, 51554 states have (on average 1.2733444543585366) internal successors, (65646), 53645 states have internal predecessors, (65646), 31302 states have call successors, (31302), 7409 states have call predecessors, (31302), 7397 states have return successors, (31338), 30566 states have call predecessors, (31338), 31302 states have call successors, (31338) [2022-12-14 15:59:55,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90255 states to 90255 states and 128286 transitions. [2022-12-14 15:59:55,759 INFO L78 Accepts]: Start accepts. Automaton has 90255 states and 128286 transitions. Word has length 495 [2022-12-14 15:59:55,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:59:55,760 INFO L495 AbstractCegarLoop]: Abstraction has 90255 states and 128286 transitions. [2022-12-14 15:59:55,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-12-14 15:59:55,760 INFO L276 IsEmpty]: Start isEmpty. Operand 90255 states and 128286 transitions. [2022-12-14 15:59:55,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2022-12-14 15:59:55,783 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:59:55,783 INFO L195 NwaCegarLoop]: trace histogram [41, 33, 33, 33, 33, 33, 33, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:59:55,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 15:59:55,783 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:59:55,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:59:55,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1291495326, now seen corresponding path program 1 times [2022-12-14 15:59:55,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:59:55,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884651610] [2022-12-14 15:59:55,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:59:55,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:59:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:59:56,464 INFO L134 CoverageAnalysis]: Checked inductivity of 4899 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 4874 trivial. 0 not checked. [2022-12-14 15:59:56,464 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:59:56,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884651610] [2022-12-14 15:59:56,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884651610] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:59:56,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:59:56,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:59:56,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432279462] [2022-12-14 15:59:56,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:59:56,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:59:56,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:59:56,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:59:56,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:59:56,467 INFO L87 Difference]: Start difference. First operand 90255 states and 128286 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2022-12-14 16:00:04,749 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 16:00:14,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:00:14,122 INFO L93 Difference]: Finished difference Result 219567 states and 312264 transitions. [2022-12-14 16:00:14,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:00:14,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) Word has length 501 [2022-12-14 16:00:14,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:00:14,619 INFO L225 Difference]: With dead ends: 219567 [2022-12-14 16:00:14,619 INFO L226 Difference]: Without dead ends: 129717 [2022-12-14 16:00:14,939 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 16:00:14,939 INFO L413 NwaCegarLoop]: 8367 mSDtfsCounter, 4594 mSDsluCounter, 4277 mSDsCounter, 0 mSdLazyCounter, 1794 mSolverCounterSat, 28 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4594 SdHoareTripleChecker+Valid, 12644 SdHoareTripleChecker+Invalid, 1823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1794 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-12-14 16:00:14,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4594 Valid, 12644 Invalid, 1823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1794 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-12-14 16:00:15,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129717 states. [2022-12-14 16:00:26,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129717 to 129701. [2022-12-14 16:00:27,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129701 states, 74271 states have (on average 1.2719769492803383) internal successors, (94471), 77238 states have internal predecessors, (94471), 44749 states have call successors, (44749), 10694 states have call predecessors, (44749), 10679 states have return successors, (44794), 43715 states have call predecessors, (44794), 44749 states have call successors, (44794) [2022-12-14 16:00:27,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129701 states to 129701 states and 184014 transitions. [2022-12-14 16:00:27,608 INFO L78 Accepts]: Start accepts. Automaton has 129701 states and 184014 transitions. Word has length 501 [2022-12-14 16:00:27,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:00:27,609 INFO L495 AbstractCegarLoop]: Abstraction has 129701 states and 184014 transitions. [2022-12-14 16:00:27,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2022-12-14 16:00:27,609 INFO L276 IsEmpty]: Start isEmpty. Operand 129701 states and 184014 transitions. [2022-12-14 16:00:27,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2022-12-14 16:00:27,629 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:00:27,629 INFO L195 NwaCegarLoop]: trace histogram [39, 33, 33, 33, 33, 33, 33, 9, 9, 3, 3, 3, 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] [2022-12-14 16:00:27,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 16:00:27,629 INFO L420 AbstractCegarLoop]: === Iteration 25 === 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 16:00:27,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:00:27,630 INFO L85 PathProgramCache]: Analyzing trace with hash -967000112, now seen corresponding path program 1 times [2022-12-14 16:00:27,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:00:27,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216817377] [2022-12-14 16:00:27,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:00:27,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:00:27,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:00:28,954 INFO L134 CoverageAnalysis]: Checked inductivity of 4786 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4786 trivial. 0 not checked. [2022-12-14 16:00:28,954 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:00:28,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216817377] [2022-12-14 16:00:28,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216817377] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:00:28,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:00:28,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 16:00:28,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453504534] [2022-12-14 16:00:28,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:00:28,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 16:00:28,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:00:28,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 16:00:28,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:00:28,955 INFO L87 Difference]: Start difference. First operand 129701 states and 184014 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (65), 3 states have call predecessors, (65), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-12-14 16:00:35,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 16:00:42,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:00:42,727 INFO L93 Difference]: Finished difference Result 129813 states and 184124 transitions. [2022-12-14 16:00:42,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 16:00:42,729 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (65), 3 states have call predecessors, (65), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 529 [2022-12-14 16:00:42,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:00:43,165 INFO L225 Difference]: With dead ends: 129813 [2022-12-14 16:00:43,165 INFO L226 Difference]: Without dead ends: 129811 [2022-12-14 16:00:43,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 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 16:00:43,216 INFO L413 NwaCegarLoop]: 4356 mSDtfsCounter, 4745 mSDsluCounter, 8739 mSDsCounter, 0 mSdLazyCounter, 1790 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4748 SdHoareTripleChecker+Valid, 13095 SdHoareTripleChecker+Invalid, 1792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 16:00:43,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4748 Valid, 13095 Invalid, 1792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1790 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 16:00:43,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129811 states. [2022-12-14 16:00:55,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129811 to 129809. [2022-12-14 16:00:55,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129809 states, 74352 states have (on average 1.271061975468044) internal successors, (94506), 77319 states have internal predecessors, (94506), 44749 states have call successors, (44749), 10721 states have call predecessors, (44749), 10706 states have return successors, (44794), 43715 states have call predecessors, (44794), 44749 states have call successors, (44794) [2022-12-14 16:00:56,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129809 states to 129809 states and 184049 transitions. [2022-12-14 16:00:56,009 INFO L78 Accepts]: Start accepts. Automaton has 129809 states and 184049 transitions. Word has length 529 [2022-12-14 16:00:56,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:00:56,009 INFO L495 AbstractCegarLoop]: Abstraction has 129809 states and 184049 transitions. [2022-12-14 16:00:56,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (65), 3 states have call predecessors, (65), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-12-14 16:00:56,010 INFO L276 IsEmpty]: Start isEmpty. Operand 129809 states and 184049 transitions. [2022-12-14 16:00:56,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2022-12-14 16:00:56,040 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:00:56,040 INFO L195 NwaCegarLoop]: trace histogram [39, 33, 33, 33, 33, 33, 33, 11, 11, 3, 3, 3, 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] [2022-12-14 16:00:56,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-14 16:00:56,040 INFO L420 AbstractCegarLoop]: === Iteration 26 === 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 16:00:56,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:00:56,041 INFO L85 PathProgramCache]: Analyzing trace with hash -579289048, now seen corresponding path program 1 times [2022-12-14 16:00:56,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:00:56,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370043789] [2022-12-14 16:00:56,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:00:56,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:00:56,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:00:57,022 INFO L134 CoverageAnalysis]: Checked inductivity of 4843 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4843 trivial. 0 not checked. [2022-12-14 16:00:57,022 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:00:57,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370043789] [2022-12-14 16:00:57,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370043789] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:00:57,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:00:57,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 16:00:57,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508378928] [2022-12-14 16:00:57,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:00:57,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 16:00:57,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:00:57,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 16:00:57,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 16:00:57,024 INFO L87 Difference]: Start difference. First operand 129809 states and 184049 transitions. Second operand has 8 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 3 states have call successors, (73), 2 states have call predecessors, (73), 3 states have return successors, (67), 4 states have call predecessors, (67), 2 states have call successors, (67) [2022-12-14 16:01:14,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:01:14,543 INFO L93 Difference]: Finished difference Result 259797 states and 369077 transitions. [2022-12-14 16:01:14,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 16:01:14,545 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 3 states have call successors, (73), 2 states have call predecessors, (73), 3 states have return successors, (67), 4 states have call predecessors, (67), 2 states have call successors, (67) Word has length 560 [2022-12-14 16:01:14,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:01:15,099 INFO L225 Difference]: With dead ends: 259797 [2022-12-14 16:01:15,100 INFO L226 Difference]: Without dead ends: 130393 [2022-12-14 16:01:15,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-12-14 16:01:15,524 INFO L413 NwaCegarLoop]: 4313 mSDtfsCounter, 14 mSDsluCounter, 25831 mSDsCounter, 0 mSdLazyCounter, 4336 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 30144 SdHoareTripleChecker+Invalid, 4344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 4336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-12-14 16:01:15,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 30144 Invalid, 4344 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 4336 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-12-14 16:01:15,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130393 states. [2022-12-14 16:01:26,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130393 to 130028. [2022-12-14 16:01:26,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130028 states, 74498 states have (on average 1.2705307525034228) internal successors, (94652), 77392 states have internal predecessors, (94652), 44822 states have call successors, (44822), 10721 states have call predecessors, (44822), 10706 states have return successors, (44867), 43788 states have call predecessors, (44867), 44822 states have call successors, (44867) [2022-12-14 16:01:27,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130028 states to 130028 states and 184341 transitions. [2022-12-14 16:01:27,290 INFO L78 Accepts]: Start accepts. Automaton has 130028 states and 184341 transitions. Word has length 560 [2022-12-14 16:01:27,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:01:27,291 INFO L495 AbstractCegarLoop]: Abstraction has 130028 states and 184341 transitions. [2022-12-14 16:01:27,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 3 states have call successors, (73), 2 states have call predecessors, (73), 3 states have return successors, (67), 4 states have call predecessors, (67), 2 states have call successors, (67) [2022-12-14 16:01:27,291 INFO L276 IsEmpty]: Start isEmpty. Operand 130028 states and 184341 transitions. [2022-12-14 16:01:27,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 564 [2022-12-14 16:01:27,323 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:01:27,323 INFO L195 NwaCegarLoop]: trace histogram [39, 33, 33, 33, 33, 33, 33, 10, 10, 3, 3, 3, 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] [2022-12-14 16:01:27,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-14 16:01:27,324 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 16:01:27,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:01:27,324 INFO L85 PathProgramCache]: Analyzing trace with hash -137643031, now seen corresponding path program 1 times [2022-12-14 16:01:27,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:01:27,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905385526] [2022-12-14 16:01:27,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:01:27,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:01:27,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:01:28,264 INFO L134 CoverageAnalysis]: Checked inductivity of 4815 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4815 trivial. 0 not checked. [2022-12-14 16:01:28,264 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:01:28,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905385526] [2022-12-14 16:01:28,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905385526] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:01:28,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:01:28,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 16:01:28,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359052042] [2022-12-14 16:01:28,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:01:28,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 16:01:28,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:01:28,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 16:01:28,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:01:28,266 INFO L87 Difference]: Start difference. First operand 130028 states and 184341 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (73), 3 states have call predecessors, (73), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2022-12-14 16:01:43,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:01:43,535 INFO L93 Difference]: Finished difference Result 130030 states and 184342 transitions. [2022-12-14 16:01:43,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 16:01:43,537 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (73), 3 states have call predecessors, (73), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) Word has length 563 [2022-12-14 16:01:43,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:01:44,048 INFO L225 Difference]: With dead ends: 130030 [2022-12-14 16:01:44,048 INFO L226 Difference]: Without dead ends: 130028 [2022-12-14 16:01:44,100 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 16:01:44,100 INFO L413 NwaCegarLoop]: 4337 mSDtfsCounter, 40 mSDsluCounter, 12990 mSDsCounter, 0 mSdLazyCounter, 2373 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 17327 SdHoareTripleChecker+Invalid, 2374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 16:01:44,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 17327 Invalid, 2374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2373 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 16:01:44,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130028 states. [2022-12-14 16:01:55,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130028 to 130028. [2022-12-14 16:01:55,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130028 states, 74498 states have (on average 1.2695508604257832) internal successors, (94579), 77392 states have internal predecessors, (94579), 44822 states have call successors, (44822), 10721 states have call predecessors, (44822), 10706 states have return successors, (44867), 43788 states have call predecessors, (44867), 44822 states have call successors, (44867) [2022-12-14 16:01:56,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130028 states to 130028 states and 184268 transitions. [2022-12-14 16:01:56,204 INFO L78 Accepts]: Start accepts. Automaton has 130028 states and 184268 transitions. Word has length 563 [2022-12-14 16:01:56,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:01:56,205 INFO L495 AbstractCegarLoop]: Abstraction has 130028 states and 184268 transitions. [2022-12-14 16:01:56,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (73), 3 states have call predecessors, (73), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2022-12-14 16:01:56,205 INFO L276 IsEmpty]: Start isEmpty. Operand 130028 states and 184268 transitions. [2022-12-14 16:01:56,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 656 [2022-12-14 16:01:56,272 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:01:56,272 INFO L195 NwaCegarLoop]: trace histogram [39, 33, 33, 33, 33, 33, 33, 11, 11, 9, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 16:01:56,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-14 16:01:56,273 INFO L420 AbstractCegarLoop]: === Iteration 28 === 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 16:01:56,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:01:56,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1994146523, now seen corresponding path program 1 times [2022-12-14 16:01:56,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:01:56,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245564134] [2022-12-14 16:01:56,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:01:56,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:01:56,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:01:56,868 INFO L134 CoverageAnalysis]: Checked inductivity of 4977 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4977 trivial. 0 not checked. [2022-12-14 16:01:56,868 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:01:56,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245564134] [2022-12-14 16:01:56,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245564134] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:01:56,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:01:56,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 16:01:56,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759269702] [2022-12-14 16:01:56,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:01:56,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:01:56,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:01:56,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:01:56,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:01:56,872 INFO L87 Difference]: Start difference. First operand 130028 states and 184268 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 2 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (92), 2 states have call predecessors, (92), 2 states have call successors, (92) [2022-12-14 16:02:10,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:02:10,887 INFO L93 Difference]: Finished difference Result 260111 states and 369700 transitions. [2022-12-14 16:02:10,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:02:10,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 2 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (92), 2 states have call predecessors, (92), 2 states have call successors, (92) Word has length 655 [2022-12-14 16:02:10,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:02:11,377 INFO L225 Difference]: With dead ends: 260111 [2022-12-14 16:02:11,377 INFO L226 Difference]: Without dead ends: 130488 [2022-12-14 16:02:11,728 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 16:02:11,728 INFO L413 NwaCegarLoop]: 4340 mSDtfsCounter, 5 mSDsluCounter, 4332 mSDsCounter, 0 mSdLazyCounter, 1184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 8672 SdHoareTripleChecker+Invalid, 1184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-14 16:02:11,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 8672 Invalid, 1184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1184 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-14 16:02:11,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130488 states. [2022-12-14 16:02:23,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130488 to 130074. [2022-12-14 16:02:23,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130074 states, 74544 states have (on average 1.2693845245760893) internal successors, (94625), 77438 states have internal predecessors, (94625), 44822 states have call successors, (44822), 10721 states have call predecessors, (44822), 10706 states have return successors, (44867), 43788 states have call predecessors, (44867), 44822 states have call successors, (44867) [2022-12-14 16:02:23,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130074 states to 130074 states and 184314 transitions. [2022-12-14 16:02:23,945 INFO L78 Accepts]: Start accepts. Automaton has 130074 states and 184314 transitions. Word has length 655 [2022-12-14 16:02:23,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:02:23,946 INFO L495 AbstractCegarLoop]: Abstraction has 130074 states and 184314 transitions. [2022-12-14 16:02:23,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 2 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (92), 2 states have call predecessors, (92), 2 states have call successors, (92) [2022-12-14 16:02:23,946 INFO L276 IsEmpty]: Start isEmpty. Operand 130074 states and 184314 transitions. [2022-12-14 16:02:24,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 665 [2022-12-14 16:02:24,016 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:02:24,017 INFO L195 NwaCegarLoop]: trace histogram [39, 33, 33, 33, 33, 33, 33, 11, 11, 9, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:02:24,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-14 16:02:24,017 INFO L420 AbstractCegarLoop]: === Iteration 29 === 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 16:02:24,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:02:24,018 INFO L85 PathProgramCache]: Analyzing trace with hash 980841621, now seen corresponding path program 1 times [2022-12-14 16:02:24,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:02:24,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221291867] [2022-12-14 16:02:24,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:02:24,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:02:24,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:02:25,030 INFO L134 CoverageAnalysis]: Checked inductivity of 4983 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4983 trivial. 0 not checked. [2022-12-14 16:02:25,030 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:02:25,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221291867] [2022-12-14 16:02:25,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221291867] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:02:25,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:02:25,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 16:02:25,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551692435] [2022-12-14 16:02:25,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:02:25,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 16:02:25,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:02:25,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 16:02:25,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:02:25,032 INFO L87 Difference]: Start difference. First operand 130074 states and 184314 transitions. Second operand has 5 states, 5 states have (on average 34.4) internal successors, (172), 4 states have internal predecessors, (172), 2 states have call successors, (101), 3 states have call predecessors, (101), 2 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) [2022-12-14 16:02:39,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:02:39,154 INFO L93 Difference]: Finished difference Result 130076 states and 184315 transitions. [2022-12-14 16:02:39,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 16:02:39,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 4 states have internal predecessors, (172), 2 states have call successors, (101), 3 states have call predecessors, (101), 2 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) Word has length 664 [2022-12-14 16:02:39,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:02:39,613 INFO L225 Difference]: With dead ends: 130076 [2022-12-14 16:02:39,613 INFO L226 Difference]: Without dead ends: 130074 [2022-12-14 16:02:39,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 16:02:39,662 INFO L413 NwaCegarLoop]: 4350 mSDtfsCounter, 488 mSDsluCounter, 12592 mSDsCounter, 0 mSdLazyCounter, 2374 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 16942 SdHoareTripleChecker+Invalid, 2375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-12-14 16:02:39,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 16942 Invalid, 2375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2374 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-12-14 16:02:39,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130074 states. [2022-12-14 16:02:50,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130074 to 130074. [2022-12-14 16:02:50,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130074 states, 74544 states have (on average 1.2687674393646706) internal successors, (94579), 77438 states have internal predecessors, (94579), 44822 states have call successors, (44822), 10721 states have call predecessors, (44822), 10706 states have return successors, (44867), 43788 states have call predecessors, (44867), 44822 states have call successors, (44867) [2022-12-14 16:02:51,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130074 states to 130074 states and 184268 transitions. [2022-12-14 16:02:51,149 INFO L78 Accepts]: Start accepts. Automaton has 130074 states and 184268 transitions. Word has length 664 [2022-12-14 16:02:51,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:02:51,149 INFO L495 AbstractCegarLoop]: Abstraction has 130074 states and 184268 transitions. [2022-12-14 16:02:51,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 4 states have internal predecessors, (172), 2 states have call successors, (101), 3 states have call predecessors, (101), 2 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) [2022-12-14 16:02:51,150 INFO L276 IsEmpty]: Start isEmpty. Operand 130074 states and 184268 transitions. [2022-12-14 16:02:51,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 996 [2022-12-14 16:02:51,335 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:02:51,336 INFO L195 NwaCegarLoop]: trace histogram [47, 35, 35, 35, 35, 35, 35, 18, 17, 17, 13, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:02:51,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-14 16:02:51,337 INFO L420 AbstractCegarLoop]: === Iteration 30 === 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 16:02:51,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:02:51,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1986319754, now seen corresponding path program 1 times [2022-12-14 16:02:51,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:02:51,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244746461] [2022-12-14 16:02:51,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:02:51,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:02:51,565 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 16:02:51,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1504907252] [2022-12-14 16:02:51,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:02:51,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:02:51,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:02:51,566 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 16:02:51,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 16:02:53,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:02:53,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 11621 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 16:02:53,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:02:53,936 INFO L134 CoverageAnalysis]: Checked inductivity of 6739 backedges. 379 proven. 0 refuted. 0 times theorem prover too weak. 6360 trivial. 0 not checked. [2022-12-14 16:02:53,937 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 16:02:53,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:02:53,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244746461] [2022-12-14 16:02:53,937 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 16:02:53,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504907252] [2022-12-14 16:02:53,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504907252] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:02:53,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:02:53,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 16:02:53,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230111731] [2022-12-14 16:02:53,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:02:53,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:02:53,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:02:53,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:02:53,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:02:53,939 INFO L87 Difference]: Start difference. First operand 130074 states and 184268 transitions. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 3 states have call successors, (148), 3 states have call predecessors, (148), 3 states have return successors, (147), 3 states have call predecessors, (147), 3 states have call successors, (147) [2022-12-14 16:03:00,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 16:03:02,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 16:03:14,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:03:14,559 INFO L93 Difference]: Finished difference Result 309401 states and 438157 transitions. [2022-12-14 16:03:14,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:03:14,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 3 states have call successors, (148), 3 states have call predecessors, (148), 3 states have return successors, (147), 3 states have call predecessors, (147), 3 states have call successors, (147) Word has length 995 [2022-12-14 16:03:14,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:03:15,247 INFO L225 Difference]: With dead ends: 309401 [2022-12-14 16:03:15,248 INFO L226 Difference]: Without dead ends: 179732 [2022-12-14 16:03:15,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 994 GetRequests, 993 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 16:03:15,626 INFO L413 NwaCegarLoop]: 7525 mSDtfsCounter, 3824 mSDsluCounter, 4101 mSDsCounter, 0 mSdLazyCounter, 1624 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3824 SdHoareTripleChecker+Valid, 11626 SdHoareTripleChecker+Invalid, 1698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-12-14 16:03:15,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3824 Valid, 11626 Invalid, 1698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1624 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-12-14 16:03:15,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179732 states. [2022-12-14 16:03:30,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179732 to 179708. [2022-12-14 16:03:30,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179708 states, 102936 states have (on average 1.2609388357814564) internal successors, (129796), 106918 states have internal predecessors, (129796), 61794 states have call successors, (61794), 15006 states have call predecessors, (61794), 14976 states have return successors, (61884), 60345 states have call predecessors, (61884), 61794 states have call successors, (61884) [2022-12-14 16:03:31,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179708 states to 179708 states and 253474 transitions. [2022-12-14 16:03:31,559 INFO L78 Accepts]: Start accepts. Automaton has 179708 states and 253474 transitions. Word has length 995 [2022-12-14 16:03:31,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:03:31,560 INFO L495 AbstractCegarLoop]: Abstraction has 179708 states and 253474 transitions. [2022-12-14 16:03:31,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 3 states have call successors, (148), 3 states have call predecessors, (148), 3 states have return successors, (147), 3 states have call predecessors, (147), 3 states have call successors, (147) [2022-12-14 16:03:31,560 INFO L276 IsEmpty]: Start isEmpty. Operand 179708 states and 253474 transitions. [2022-12-14 16:03:31,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1018 [2022-12-14 16:03:31,755 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:03:31,755 INFO L195 NwaCegarLoop]: trace histogram [49, 35, 35, 35, 35, 35, 35, 18, 17, 17, 13, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:03:31,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 16:03:31,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:03:31,958 INFO L420 AbstractCegarLoop]: === Iteration 31 === 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 16:03:31,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:03:31,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1304562498, now seen corresponding path program 1 times [2022-12-14 16:03:31,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:03:31,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564635945] [2022-12-14 16:03:31,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:03:31,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:03:32,188 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 16:03:32,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [770760306] [2022-12-14 16:03:32,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:03:32,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:03:32,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:03:32,189 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 16:03:32,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 16:03:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:03:34,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 11684 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 16:03:34,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:03:34,340 INFO L134 CoverageAnalysis]: Checked inductivity of 6955 backedges. 593 proven. 0 refuted. 0 times theorem prover too weak. 6362 trivial. 0 not checked. [2022-12-14 16:03:34,341 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 16:03:34,341 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:03:34,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564635945] [2022-12-14 16:03:34,341 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 16:03:34,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770760306] [2022-12-14 16:03:34,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770760306] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:03:34,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:03:34,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 16:03:34,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129094603] [2022-12-14 16:03:34,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:03:34,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:03:34,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:03:34,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:03:34,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:03:34,343 INFO L87 Difference]: Start difference. First operand 179708 states and 253474 transitions. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 3 states have call successors, (151), 3 states have call predecessors, (151), 3 states have return successors, (150), 3 states have call predecessors, (150), 3 states have call successors, (150) [2022-12-14 16:03:58,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:03:58,817 INFO L93 Difference]: Finished difference Result 436355 states and 612962 transitions. [2022-12-14 16:03:58,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:03:58,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 3 states have call successors, (151), 3 states have call predecessors, (151), 3 states have return successors, (150), 3 states have call predecessors, (150), 3 states have call successors, (150) Word has length 1017 [2022-12-14 16:03:58,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:03:59,838 INFO L225 Difference]: With dead ends: 436355 [2022-12-14 16:03:59,838 INFO L226 Difference]: Without dead ends: 257052 [2022-12-14 16:04:00,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1016 GetRequests, 1015 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 16:04:00,363 INFO L413 NwaCegarLoop]: 5245 mSDtfsCounter, 4648 mSDsluCounter, 3418 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4648 SdHoareTripleChecker+Valid, 8663 SdHoareTripleChecker+Invalid, 1214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 16:04:00,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4648 Valid, 8663 Invalid, 1214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 16:04:00,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257052 states. [2022-12-14 16:04:22,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257052 to 257028. [2022-12-14 16:04:22,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257028 states, 146659 states have (on average 1.2539019085088539) internal successors, (183896), 152223 states have internal predecessors, (183896), 87953 states have call successors, (87953), 22459 states have call predecessors, (87953), 22414 states have return successors, (88088), 85918 states have call predecessors, (88088), 87953 states have call successors, (88088) [2022-12-14 16:04:23,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257028 states to 257028 states and 359937 transitions. [2022-12-14 16:04:23,547 INFO L78 Accepts]: Start accepts. Automaton has 257028 states and 359937 transitions. Word has length 1017 [2022-12-14 16:04:23,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:04:23,548 INFO L495 AbstractCegarLoop]: Abstraction has 257028 states and 359937 transitions. [2022-12-14 16:04:23,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 3 states have call successors, (151), 3 states have call predecessors, (151), 3 states have return successors, (150), 3 states have call predecessors, (150), 3 states have call successors, (150) [2022-12-14 16:04:23,549 INFO L276 IsEmpty]: Start isEmpty. Operand 257028 states and 359937 transitions. [2022-12-14 16:04:23,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1020 [2022-12-14 16:04:23,756 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:04:23,757 INFO L195 NwaCegarLoop]: trace histogram [49, 35, 35, 35, 35, 35, 35, 18, 17, 17, 13, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:04:23,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 16:04:23,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-12-14 16:04:23,959 INFO L420 AbstractCegarLoop]: === Iteration 32 === 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 16:04:23,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:04:23,961 INFO L85 PathProgramCache]: Analyzing trace with hash 864956004, now seen corresponding path program 1 times [2022-12-14 16:04:23,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:04:23,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591416344] [2022-12-14 16:04:23,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:04:23,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:04:24,189 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 16:04:24,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2034646267] [2022-12-14 16:04:24,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:04:24,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:04:24,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:04:24,191 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 16:04:24,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 16:04:25,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:04:26,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 11686 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 16:04:26,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:04:27,011 INFO L134 CoverageAnalysis]: Checked inductivity of 6957 backedges. 788 proven. 0 refuted. 0 times theorem prover too weak. 6169 trivial. 0 not checked. [2022-12-14 16:04:27,011 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 16:04:27,011 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:04:27,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591416344] [2022-12-14 16:04:27,012 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 16:04:27,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034646267] [2022-12-14 16:04:27,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034646267] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:04:27,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:04:27,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 16:04:27,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406837087] [2022-12-14 16:04:27,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:04:27,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:04:27,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:04:27,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:04:27,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:04:27,015 INFO L87 Difference]: Start difference. First operand 257028 states and 359937 transitions. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 2 states have internal predecessors, (334), 2 states have call successors, (152), 2 states have call predecessors, (152), 2 states have return successors, (151), 2 states have call predecessors, (151), 2 states have call successors, (151) [2022-12-14 16:04:52,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:04:52,229 INFO L93 Difference]: Finished difference Result 513651 states and 719320 transitions. [2022-12-14 16:04:52,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:04:52,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 2 states have internal predecessors, (334), 2 states have call successors, (152), 2 states have call predecessors, (152), 2 states have return successors, (151), 2 states have call predecessors, (151), 2 states have call successors, (151) Word has length 1019 [2022-12-14 16:04:52,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:04:53,448 INFO L225 Difference]: With dead ends: 513651 [2022-12-14 16:04:53,448 INFO L226 Difference]: Without dead ends: 257028 [2022-12-14 16:04:54,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1018 GetRequests, 1017 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 16:04:54,312 INFO L413 NwaCegarLoop]: 4334 mSDtfsCounter, 4498 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4498 SdHoareTripleChecker+Valid, 4334 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-14 16:04:54,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4498 Valid, 4334 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-14 16:04:54,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257028 states. [2022-12-14 16:05:17,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257028 to 257028. [2022-12-14 16:05:17,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257028 states, 146659 states have (on average 1.25365644113215) internal successors, (183860), 152223 states have internal predecessors, (183860), 87953 states have call successors, (87953), 22459 states have call predecessors, (87953), 22414 states have return successors, (88088), 85918 states have call predecessors, (88088), 87953 states have call successors, (88088) [2022-12-14 16:05:18,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257028 states to 257028 states and 359901 transitions. [2022-12-14 16:05:18,777 INFO L78 Accepts]: Start accepts. Automaton has 257028 states and 359901 transitions. Word has length 1019 [2022-12-14 16:05:18,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:05:18,778 INFO L495 AbstractCegarLoop]: Abstraction has 257028 states and 359901 transitions. [2022-12-14 16:05:18,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 2 states have internal predecessors, (334), 2 states have call successors, (152), 2 states have call predecessors, (152), 2 states have return successors, (151), 2 states have call predecessors, (151), 2 states have call successors, (151) [2022-12-14 16:05:18,779 INFO L276 IsEmpty]: Start isEmpty. Operand 257028 states and 359901 transitions. [2022-12-14 16:05:18,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1021 [2022-12-14 16:05:18,991 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:05:18,991 INFO L195 NwaCegarLoop]: trace histogram [49, 35, 35, 35, 35, 35, 35, 18, 17, 17, 13, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:05:19,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 16:05:19,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:05:19,193 INFO L420 AbstractCegarLoop]: === Iteration 33 === 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 16:05:19,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:05:19,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1792525780, now seen corresponding path program 1 times [2022-12-14 16:05:19,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:05:19,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270737520] [2022-12-14 16:05:19,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:05:19,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:05:19,413 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 16:05:19,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [895710806] [2022-12-14 16:05:19,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:05:19,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:05:19,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:05:19,415 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 16:05:19,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d65528-3faa-4093-9c05-6d51e6877d77/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 16:05:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:05:21,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 11704 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 16:05:21,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:05:21,764 INFO L134 CoverageAnalysis]: Checked inductivity of 6957 backedges. 1177 proven. 0 refuted. 0 times theorem prover too weak. 5780 trivial. 0 not checked. [2022-12-14 16:05:21,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 16:05:21,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:05:21,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270737520] [2022-12-14 16:05:21,764 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 16:05:21,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895710806] [2022-12-14 16:05:21,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [895710806] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:05:21,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:05:21,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 16:05:21,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600842948] [2022-12-14 16:05:21,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:05:21,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 16:05:21,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:05:21,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 16:05:21,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 16:05:21,767 INFO L87 Difference]: Start difference. First operand 257028 states and 359901 transitions. Second operand has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 2 states have call successors, (151), 2 states have call predecessors, (151), 2 states have return successors, (150), 2 states have call predecessors, (150), 2 states have call successors, (150)