./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/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_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/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_5f245915-bfa8-4f5c-bd70-1b29218de6cd/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 5663310b82fa3e5d48c5bcacd13ac8ac886029c41a2f8f3bd2b8442c496a9447 --- 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 11:25:11,000 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:25:11,002 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:25:11,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:25:11,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:25:11,023 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:25:11,024 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:25:11,026 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:25:11,027 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:25:11,028 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:25:11,029 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:25:11,030 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:25:11,031 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:25:11,032 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:25:11,033 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:25:11,034 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:25:11,050 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:25:11,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:25:11,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:25:11,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:25:11,056 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:25:11,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:25:11,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:25:11,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:25:11,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:25:11,062 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:25:11,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:25:11,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:25:11,063 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:25:11,064 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:25:11,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:25:11,071 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:25:11,071 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:25:11,072 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:25:11,073 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:25:11,073 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:25:11,074 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:25:11,074 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:25:11,074 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:25:11,075 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:25:11,076 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:25:11,076 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 11:25:11,103 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:25:11,103 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:25:11,104 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:25:11,104 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:25:11,104 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:25:11,104 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:25:11,104 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:25:11,105 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:25:11,105 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:25:11,105 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:25:11,105 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:25:11,105 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:25:11,105 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:25:11,105 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:25:11,105 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:25:11,105 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:25:11,105 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:25:11,105 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:25:11,106 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:25:11,106 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:25:11,106 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:25:11,106 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:25:11,106 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:25:11,106 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:25:11,106 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:25:11,107 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:25:11,107 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:25:11,107 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:25:11,107 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:25:11,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:25:11,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:25:11,107 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:25:11,107 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:25:11,107 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:25:11,107 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:25:11,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:25:11,108 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:25:11,108 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:25:11,108 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_5f245915-bfa8-4f5c-bd70-1b29218de6cd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5663310b82fa3e5d48c5bcacd13ac8ac886029c41a2f8f3bd2b8442c496a9447 [2022-12-14 11:25:11,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:25:11,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:25:11,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:25:11,315 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:25:11,315 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:25:11,316 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i [2022-12-14 11:25:13,896 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:25:14,348 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:25:14,349 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i [2022-12-14 11:25:14,374 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/data/12cbf01dd/5c2ec3d67b9948c8b4c02a3f9b62df94/FLAGb41a21a00 [2022-12-14 11:25:14,445 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/data/12cbf01dd/5c2ec3d67b9948c8b4c02a3f9b62df94 [2022-12-14 11:25:14,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:25:14,448 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:25:14,448 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:25:14,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:25:14,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:25:14,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:25:14" (1/1) ... [2022-12-14 11:25:14,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5008bb1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:14, skipping insertion in model container [2022-12-14 11:25:14,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:25:14" (1/1) ... [2022-12-14 11:25:14,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:25:14,558 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:25:15,208 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 11:25:15,218 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-12-14 11:25:15,226 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 11:25:15,235 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-12-14 11:25:15,245 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 11:25:15,298 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 11:25:15,329 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 11:25:15,345 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:25:15,388 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 11:25:15,393 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 11:25:15,393 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 11:25:15,400 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 11:25:15,407 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 11:25:15,414 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 11:25:15,419 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-12-14 11:25:15,447 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 11:25:15,454 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 11:25:15,457 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 11:25:15,463 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-12-14 11:25:15,507 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 11:25:15,549 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 11:25:15,550 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 11:25:15,592 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 11:25:15,593 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:25:15,608 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-14 11:25:15,656 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_word [2022-12-14 11:25:15,721 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-12-14 11:25:15,746 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 11:25:15,807 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 11:25:15,809 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:15,840 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 11:25:15,865 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:15,865 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 11:25:15,902 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:25:15,903 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:15,907 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 11:25:15,921 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 11:25:15,922 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 11:25:15,927 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 11:25:15,927 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 11:25:15,932 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 11:25:15,933 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 11:25:15,938 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 11:25:15,939 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 11:25:15,970 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:15,977 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:15,994 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:15,995 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:15,996 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:15,996 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:15,997 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,030 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:16,031 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:16,061 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 11:25:16,062 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 11:25:16,085 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,090 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 11:25:16,091 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 11:25:16,092 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 11:25:16,092 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:16,093 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 11:25:16,098 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:16,099 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:16,100 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:16,137 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 11:25:16,138 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 11:25:16,138 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 11:25:16,155 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 11:25:16,156 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,156 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 11:25:16,170 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 11:25:16,171 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,171 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,185 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 11:25:16,186 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 11:25:16,186 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-12-14 11:25:16,190 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 11:25:16,191 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-12-14 11:25:16,191 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,193 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 11:25:16,193 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-12-14 11:25:16,198 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,204 WARN L623 FunctionHandler]: Unknown extern function __napi_complete [2022-12-14 11:25:16,221 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 11:25:16,221 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 11:25:16,222 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,223 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-12-14 11:25:16,239 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,242 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,243 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,252 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,254 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,254 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 11:25:16,260 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,261 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,265 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:16,270 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,271 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,275 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:16,276 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 11:25:16,280 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,285 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:16,289 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 11:25:16,298 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,299 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,303 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 11:25:16,312 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,313 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,313 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,314 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,314 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,314 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,328 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 11:25:16,328 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 11:25:16,333 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 11:25:16,333 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,338 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 11:25:16,338 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 11:25:16,339 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 11:25:16,345 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 11:25:16,349 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:16,350 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:16,351 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:16,352 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:16,352 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:16,353 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:16,357 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 11:25:16,357 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:16,358 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-12-14 11:25:16,358 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,358 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,358 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,363 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,363 WARN L623 FunctionHandler]: Unknown extern function pci_enable_msi_block [2022-12-14 11:25:16,363 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,363 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:16,364 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,365 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,365 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,365 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,366 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:16,366 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-12-14 11:25:16,370 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,370 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-12-14 11:25:16,370 WARN L623 FunctionHandler]: Unknown extern function dev_close [2022-12-14 11:25:16,371 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-12-14 11:25:16,371 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,371 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-12-14 11:25:16,371 WARN L623 FunctionHandler]: Unknown extern function dev_close [2022-12-14 11:25:16,371 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-12-14 11:25:16,375 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 11:25:16,388 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,393 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 11:25:16,394 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 11:25:16,394 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,395 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 11:25:16,395 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 11:25:16,396 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,396 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:16,413 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 11:25:16,413 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:25:16,413 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-14 11:25:16,414 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:25:16,414 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 11:25:16,414 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:25:16,415 WARN L623 FunctionHandler]: Unknown extern function pci_ioremap_bar [2022-12-14 11:25:16,415 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:25:16,416 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 11:25:16,416 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 11:25:16,416 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-12-14 11:25:16,417 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:25:16,418 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:25:16,418 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 11:25:16,418 WARN L623 FunctionHandler]: Unknown extern function __alloc_workqueue_key [2022-12-14 11:25:16,418 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 11:25:16,419 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 11:25:16,419 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 11:25:16,419 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 11:25:16,420 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 11:25:16,420 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 11:25:16,420 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 11:25:16,420 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 11:25:16,421 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 11:25:16,421 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 11:25:16,421 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:25:16,421 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:25:16,422 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 11:25:16,422 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 11:25:16,422 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 11:25:16,426 WARN L623 FunctionHandler]: Unknown extern function cancel_delayed_work [2022-12-14 11:25:16,427 WARN L623 FunctionHandler]: Unknown extern function cancel_delayed_work [2022-12-14 11:25:16,427 WARN L623 FunctionHandler]: Unknown extern function destroy_workqueue [2022-12-14 11:25:16,427 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 11:25:16,427 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 11:25:16,624 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:25:16,624 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:25:16,624 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:25:16,624 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:25:16,625 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:25:16,625 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:25:16,625 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:25:16,625 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:25:16,626 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 11:25:16,627 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 11:25:16,627 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-12-14 11:25:16,628 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 11:25:16,630 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 11:25:16,631 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 11:25:16,636 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 11:25:16,637 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 11:25:16,641 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 11:25:16,641 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 11:25:16,642 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 11:25:16,642 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 11:25:16,642 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 11:25:16,643 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 11:25:16,643 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 11:25:16,643 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 11:25:16,643 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 11:25:16,644 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 11:25:16,644 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 11:25:16,644 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 11:25:16,644 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 11:25:16,645 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 11:25:16,645 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 11:25:16,646 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 11:25:16,646 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 11:25:16,646 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 11:25:16,647 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 11:25:16,647 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 11:25:16,647 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 11:25:16,647 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 11:25:16,647 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 11:25:16,648 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 11:25:16,648 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 11:25:16,648 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 11:25:16,649 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 11:25:16,649 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 11:25:16,649 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 11:25:16,690 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 11:25:16,690 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 11:25:16,697 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 11:25:17,145 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_5f245915-bfa8-4f5c-bd70-1b29218de6cd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[408897,408910] [2022-12-14 11:25:17,148 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_5f245915-bfa8-4f5c-bd70-1b29218de6cd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409066,409079] [2022-12-14 11:25:17,148 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_5f245915-bfa8-4f5c-bd70-1b29218de6cd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409233,409246] [2022-12-14 11:25:17,149 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_5f245915-bfa8-4f5c-bd70-1b29218de6cd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409401,409414] [2022-12-14 11:25:17,149 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:25:17,149 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:25:17,150 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:25:17,151 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:25:17,164 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:25:17,165 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:25:17,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:25:17,185 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:25:17,269 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 11:25:17,270 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-12-14 11:25:17,270 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 11:25:17,270 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-12-14 11:25:17,270 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 11:25:17,271 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 11:25:17,272 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 11:25:17,273 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:25:17,276 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 11:25:17,277 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 11:25:17,277 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 11:25:17,278 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 11:25:17,279 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 11:25:17,280 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 11:25:17,281 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-12-14 11:25:17,283 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 11:25:17,284 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 11:25:17,284 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 11:25:17,285 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-12-14 11:25:17,286 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 11:25:17,289 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 11:25:17,289 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 11:25:17,291 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 11:25:17,291 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:25:17,292 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-14 11:25:17,293 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_word [2022-12-14 11:25:17,296 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-12-14 11:25:17,297 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 11:25:17,301 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 11:25:17,301 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,303 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 11:25:17,305 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,306 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 11:25:17,310 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:25:17,311 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,312 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 11:25:17,313 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 11:25:17,313 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 11:25:17,314 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 11:25:17,314 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 11:25:17,315 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 11:25:17,315 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 11:25:17,316 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 11:25:17,316 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 11:25:17,319 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:17,320 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:17,322 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,323 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,323 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,323 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,324 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,327 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:17,327 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:17,329 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 11:25:17,330 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 11:25:17,333 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,334 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 11:25:17,334 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 11:25:17,335 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 11:25:17,335 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:17,335 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 11:25:17,336 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:17,337 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:17,337 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:17,341 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 11:25:17,341 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 11:25:17,341 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 11:25:17,343 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 11:25:17,343 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,343 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 11:25:17,346 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 11:25:17,346 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,347 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,349 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 11:25:17,349 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 11:25:17,349 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-12-14 11:25:17,350 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 11:25:17,350 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-12-14 11:25:17,351 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,351 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 11:25:17,351 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-12-14 11:25:17,353 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,354 WARN L623 FunctionHandler]: Unknown extern function __napi_complete [2022-12-14 11:25:17,355 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 11:25:17,355 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 11:25:17,355 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,356 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-12-14 11:25:17,358 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,359 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,359 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,362 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,363 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,363 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 11:25:17,364 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,365 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,365 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:17,366 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,367 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,367 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:17,368 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 11:25:17,368 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,369 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:17,370 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 11:25:17,371 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,372 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,372 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 11:25:17,374 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,374 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,375 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,375 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,375 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,375 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,378 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 11:25:17,378 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 11:25:17,382 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 11:25:17,382 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,383 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 11:25:17,383 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 11:25:17,384 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 11:25:17,400 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 11:25:17,401 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:17,402 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:17,402 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:17,403 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:17,403 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:17,403 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:17,404 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 11:25:17,404 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:17,404 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-12-14 11:25:17,405 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,405 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,405 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,406 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,406 WARN L623 FunctionHandler]: Unknown extern function pci_enable_msi_block [2022-12-14 11:25:17,406 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,406 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:17,407 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,407 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,407 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,407 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,408 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:25:17,408 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-12-14 11:25:17,408 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,409 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-12-14 11:25:17,409 WARN L623 FunctionHandler]: Unknown extern function dev_close [2022-12-14 11:25:17,409 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-12-14 11:25:17,409 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,409 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-12-14 11:25:17,409 WARN L623 FunctionHandler]: Unknown extern function dev_close [2022-12-14 11:25:17,409 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-12-14 11:25:17,410 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 11:25:17,412 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,412 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 11:25:17,413 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 11:25:17,413 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,414 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 11:25:17,414 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 11:25:17,414 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,415 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:25:17,417 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 11:25:17,417 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:25:17,417 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-14 11:25:17,417 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:25:17,418 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 11:25:17,418 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:25:17,419 WARN L623 FunctionHandler]: Unknown extern function pci_ioremap_bar [2022-12-14 11:25:17,420 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:25:17,420 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 11:25:17,420 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 11:25:17,420 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-12-14 11:25:17,421 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:25:17,421 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:25:17,421 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 11:25:17,421 WARN L623 FunctionHandler]: Unknown extern function __alloc_workqueue_key [2022-12-14 11:25:17,422 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 11:25:17,422 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 11:25:17,422 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 11:25:17,423 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 11:25:17,423 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 11:25:17,423 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 11:25:17,423 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 11:25:17,424 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 11:25:17,424 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 11:25:17,424 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 11:25:17,424 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:25:17,424 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:25:17,425 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 11:25:17,425 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 11:25:17,425 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 11:25:17,426 WARN L623 FunctionHandler]: Unknown extern function cancel_delayed_work [2022-12-14 11:25:17,426 WARN L623 FunctionHandler]: Unknown extern function cancel_delayed_work [2022-12-14 11:25:17,426 WARN L623 FunctionHandler]: Unknown extern function destroy_workqueue [2022-12-14 11:25:17,426 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 11:25:17,426 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 11:25:17,430 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:25:17,430 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:25:17,430 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:25:17,430 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:25:17,430 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:25:17,430 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:25:17,431 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:25:17,431 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:25:17,431 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 11:25:17,432 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 11:25:17,432 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-12-14 11:25:17,433 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 11:25:17,434 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 11:25:17,434 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 11:25:17,439 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 11:25:17,439 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 11:25:17,443 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 11:25:17,444 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 11:25:17,446 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 11:25:17,447 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 11:25:17,447 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 11:25:17,447 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 11:25:17,447 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 11:25:17,447 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 11:25:17,447 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 11:25:17,448 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 11:25:17,448 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 11:25:17,448 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 11:25:17,448 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 11:25:17,448 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 11:25:17,449 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 11:25:17,449 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 11:25:17,449 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 11:25:17,449 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 11:25:17,450 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 11:25:17,450 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 11:25:17,450 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 11:25:17,450 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 11:25:17,450 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 11:25:17,451 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 11:25:17,451 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 11:25:17,451 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 11:25:17,451 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 11:25:17,451 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 11:25:17,452 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 11:25:17,453 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 11:25:17,453 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 11:25:17,454 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 11:25:17,467 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_5f245915-bfa8-4f5c-bd70-1b29218de6cd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[408897,408910] [2022-12-14 11:25:17,467 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_5f245915-bfa8-4f5c-bd70-1b29218de6cd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409066,409079] [2022-12-14 11:25:17,468 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_5f245915-bfa8-4f5c-bd70-1b29218de6cd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409233,409246] [2022-12-14 11:25:17,468 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_5f245915-bfa8-4f5c-bd70-1b29218de6cd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409401,409414] [2022-12-14 11:25:17,468 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:25:17,469 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:25:17,470 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:25:17,471 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:25:17,473 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:25:17,474 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:25:17,475 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:25:17,590 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:25:17,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:17 WrapperNode [2022-12-14 11:25:17,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:25:17,591 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:25:17,591 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:25:17,591 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:25:17,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:17" (1/1) ... [2022-12-14 11:25:17,658 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:17" (1/1) ... [2022-12-14 11:25:17,822 INFO L138 Inliner]: procedures = 572, calls = 2987, calls flagged for inlining = 287, calls inlined = 255, statements flattened = 6576 [2022-12-14 11:25:17,823 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:25:17,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:25:17,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:25:17,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:25:17,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:17" (1/1) ... [2022-12-14 11:25:17,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:17" (1/1) ... [2022-12-14 11:25:17,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:17" (1/1) ... [2022-12-14 11:25:17,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:17" (1/1) ... [2022-12-14 11:25:17,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:17" (1/1) ... [2022-12-14 11:25:17,985 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:17" (1/1) ... [2022-12-14 11:25:18,044 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:17" (1/1) ... [2022-12-14 11:25:18,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:17" (1/1) ... [2022-12-14 11:25:18,136 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:25:18,137 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:25:18,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:25:18,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:25:18,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:17" (1/1) ... [2022-12-14 11:25:18,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:25:18,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:25:18,161 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:25:18,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:25:18,191 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_link_speed [2022-12-14 11:25:18,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_link_speed [2022-12-14 11:25:18,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_hw_lock_of_ql3_adapter [2022-12-14 11:25:18,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_hw_lock_of_ql3_adapter [2022-12-14 11:25:18,191 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-12-14 11:25:18,191 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-12-14 11:25:18,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 11:25:18,192 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 11:25:18,192 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-12-14 11:25:18,192 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-12-14 11:25:18,192 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-12-14 11:25:18,192 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-12-14 11:25:18,192 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_close [2022-12-14 11:25:18,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_close [2022-12-14 11:25:18,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 11:25:18,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 11:25:18,192 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-12-14 11:25:18,193 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-12-14 11:25:18,193 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-12-14 11:25:18,193 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-12-14 11:25:18,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 11:25:18,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 11:25:18,193 INFO L130 BoogieDeclarations]: Found specification of procedure ql_this_adapter_controls_port [2022-12-14 11:25:18,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_this_adapter_controls_port [2022-12-14 11:25:18,193 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_interrupts [2022-12-14 11:25:18,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_interrupts [2022-12-14 11:25:18,193 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-12-14 11:25:18,193 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-12-14 11:25:18,193 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-12-14 11:25:18,194 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-12-14 11:25:18,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2022-12-14 11:25:18,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2022-12-14 11:25:18,194 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_common_reg_l [2022-12-14 11:25:18,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_common_reg_l [2022-12-14 11:25:18,194 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_send_free_list [2022-12-14 11:25:18,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_send_free_list [2022-12-14 11:25:18,194 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-12-14 11:25:18,194 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-12-14 11:25:18,194 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-12-14 11:25:18,194 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-12-14 11:25:18,195 INFO L130 BoogieDeclarations]: Found specification of procedure ssleep [2022-12-14 11:25:18,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ssleep [2022-12-14 11:25:18,195 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cycle_adapter [2022-12-14 11:25:18,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cycle_adapter [2022-12-14 11:25:18,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 11:25:18,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 11:25:18,195 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mac_cfg_soft_reset [2022-12-14 11:25:18,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mac_cfg_soft_reset [2022-12-14 11:25:18,195 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-12-14 11:25:18,195 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-12-14 11:25:18,195 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-12-14 11:25:18,195 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-12-14 11:25:18,196 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_disable_scan_mode [2022-12-14 11:25:18,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_disable_scan_mode [2022-12-14 11:25:18,196 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-12-14 11:25:18,196 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-12-14 11:25:18,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 11:25:18,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 11:25:18,196 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-12-14 11:25:18,196 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-12-14 11:25:18,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 11:25:18,196 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-12-14 11:25:18,196 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-12-14 11:25:18,196 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_page0_reg_l [2022-12-14 11:25:18,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_page0_reg_l [2022-12-14 11:25:18,197 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2022-12-14 11:25:18,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2022-12-14 11:25:18,197 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-12-14 11:25:18,197 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-12-14 11:25:18,197 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-12-14 11:25:18,197 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-12-14 11:25:18,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 11:25:18,197 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-12-14 11:25:18,197 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-12-14 11:25:18,197 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-12-14 11:25:18,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-12-14 11:25:18,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 11:25:18,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 11:25:18,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 11:25:18,198 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page1_reg [2022-12-14 11:25:18,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page1_reg [2022-12-14 11:25:18,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 11:25:18,198 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-12-14 11:25:18,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-12-14 11:25:18,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 11:25:18,198 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 11:25:18,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-12-14 11:25:18,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-12-14 11:25:18,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-12-14 11:25:18,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-12-14 11:25:18,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-12-14 11:25:18,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-12-14 11:25:18,199 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-12-14 11:25:18,199 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-12-14 11:25:18,199 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-12-14 11:25:18,199 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-12-14 11:25:18,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_hw_lock_of_ql3_adapter [2022-12-14 11:25:18,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_hw_lock_of_ql3_adapter [2022-12-14 11:25:18,199 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_register_page [2022-12-14 11:25:18,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_register_page [2022-12-14 11:25:18,200 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-12-14 11:25:18,200 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-12-14 11:25:18,200 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_read_reg_ex [2022-12-14 11:25:18,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_read_reg_ex [2022-12-14 11:25:18,200 INFO L130 BoogieDeclarations]: Found specification of procedure ql_phy_init_ex [2022-12-14 11:25:18,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_phy_init_ex [2022-12-14 11:25:18,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 11:25:18,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 11:25:18,200 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_common_reg_l [2022-12-14 11:25:18,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_common_reg_l [2022-12-14 11:25:18,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 11:25:18,201 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_common_reg [2022-12-14 11:25:18,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_common_reg [2022-12-14 11:25:18,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-12-14 11:25:18,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-12-14 11:25:18,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-12-14 11:25:18,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-12-14 11:25:18,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-12-14 11:25:18,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-12-14 11:25:18,201 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2022-12-14 11:25:18,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2022-12-14 11:25:18,201 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page2_reg [2022-12-14 11:25:18,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page2_reg [2022-12-14 11:25:18,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:25:18,202 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_common_reg [2022-12-14 11:25:18,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_common_reg [2022-12-14 11:25:18,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 11:25:18,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 11:25:18,202 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-12-14 11:25:18,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-12-14 11:25:18,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 11:25:18,202 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_read_reg [2022-12-14 11:25:18,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_read_reg [2022-12-14 11:25:18,202 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 11:25:18,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 11:25:18,203 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2022-12-14 11:25:18,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2022-12-14 11:25:18,203 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-14 11:25:18,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-14 11:25:18,203 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-12-14 11:25:18,203 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-12-14 11:25:18,203 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_nvram_reg [2022-12-14 11:25:18,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_nvram_reg [2022-12-14 11:25:18,203 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-12-14 11:25:18,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-12-14 11:25:18,203 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-12-14 11:25:18,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-12-14 11:25:18,204 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-12-14 11:25:18,204 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-12-14 11:25:18,204 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 11:25:18,204 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 11:25:18,204 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_for_drvr_lock [2022-12-14 11:25:18,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_for_drvr_lock [2022-12-14 11:25:18,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-12-14 11:25:18,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-12-14 11:25:18,204 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-12-14 11:25:18,204 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-12-14 11:25:18,204 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_enable_scan_mode [2022-12-14 11:25:18,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_enable_scan_mode [2022-12-14 11:25:18,205 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-12-14 11:25:18,205 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-12-14 11:25:18,205 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-12-14 11:25:18,205 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-12-14 11:25:18,205 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-12-14 11:25:18,205 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-12-14 11:25:18,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:25:18,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:25:18,205 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_for_mii_ready [2022-12-14 11:25:18,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_for_mii_ready [2022-12-14 11:25:18,205 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-12-14 11:25:18,205 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-12-14 11:25:18,206 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_large_buffers [2022-12-14 11:25:18,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_large_buffers [2022-12-14 11:25:18,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 11:25:18,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 11:25:18,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 11:25:18,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 11:25:18,206 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 11:25:18,206 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 11:25:18,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 11:25:18,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 11:25:18,206 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-12-14 11:25:18,206 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-12-14 11:25:18,207 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2022-12-14 11:25:18,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2022-12-14 11:25:18,207 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-12-14 11:25:18,207 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-12-14 11:25:18,207 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-12-14 11:25:18,207 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-12-14 11:25:18,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-12-14 11:25:18,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-12-14 11:25:18,207 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_page0_reg [2022-12-14 11:25:18,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_page0_reg [2022-12-14 11:25:18,207 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-12-14 11:25:18,207 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-12-14 11:25:18,208 INFO L130 BoogieDeclarations]: Found specification of procedure PHY_Setup [2022-12-14 11:25:18,208 INFO L138 BoogieDeclarations]: Found implementation of procedure PHY_Setup [2022-12-14 11:25:18,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 11:25:18,208 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 11:25:18,208 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_buffer_queues [2022-12-14 11:25:18,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_buffer_queues [2022-12-14 11:25:18,208 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-12-14 11:25:18,208 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-12-14 11:25:18,208 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-12-14 11:25:18,208 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-12-14 11:25:18,208 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-12-14 11:25:18,208 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-12-14 11:25:18,209 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_remove [2022-12-14 11:25:18,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_remove [2022-12-14 11:25:18,209 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-12-14 11:25:18,209 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-12-14 11:25:18,209 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-12-14 11:25:18,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-12-14 11:25:18,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 11:25:18,209 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-14 11:25:18,209 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-14 11:25:18,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 11:25:18,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 11:25:18,209 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-12-14 11:25:18,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-12-14 11:25:18,210 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-12-14 11:25:18,210 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-12-14 11:25:18,210 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-12-14 11:25:18,210 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-12-14 11:25:18,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 11:25:18,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 11:25:18,210 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-12-14 11:25:18,210 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-12-14 11:25:18,210 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page0_reg [2022-12-14 11:25:18,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page0_reg [2022-12-14 11:25:18,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-12-14 11:25:18,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-12-14 11:25:18,211 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-12-14 11:25:18,211 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-12-14 11:25:18,211 INFO L130 BoogieDeclarations]: Found specification of procedure ql_is_link_full_dup [2022-12-14 11:25:18,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_is_link_full_dup [2022-12-14 11:25:18,211 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_open [2022-12-14 11:25:18,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_open [2022-12-14 11:25:18,211 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-12-14 11:25:18,211 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-12-14 11:25:18,211 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_tx_timeout [2022-12-14 11:25:18,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_tx_timeout [2022-12-14 11:25:18,211 INFO L130 BoogieDeclarations]: Found specification of procedure ql_supported_modes [2022-12-14 11:25:18,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_supported_modes [2022-12-14 11:25:18,212 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-12-14 11:25:18,212 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-12-14 11:25:18,212 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-14 11:25:18,212 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-14 11:25:18,212 INFO L130 BoogieDeclarations]: Found specification of procedure ql_is_fiber [2022-12-14 11:25:18,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_is_fiber [2022-12-14 11:25:18,212 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-12-14 11:25:18,212 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-12-14 11:25:18,212 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 11:25:18,212 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 11:25:18,212 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_net_req_rsp_queues [2022-12-14 11:25:18,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_net_req_rsp_queues [2022-12-14 11:25:18,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 11:25:18,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 11:25:18,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 11:25:18,213 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_write_reg_ex [2022-12-14 11:25:18,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_write_reg_ex [2022-12-14 11:25:18,213 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2022-12-14 11:25:18,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2022-12-14 11:25:18,213 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-12-14 11:25:18,213 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-12-14 11:25:18,213 INFO L130 BoogieDeclarations]: Found specification of procedure ql_port_start [2022-12-14 11:25:18,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_port_start [2022-12-14 11:25:18,213 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-12-14 11:25:18,214 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-12-14 11:25:18,214 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_auto_cfg_status [2022-12-14 11:25:18,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_auto_cfg_status [2022-12-14 11:25:18,214 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_write_reg [2022-12-14 11:25:18,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_write_reg [2022-12-14 11:25:18,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 11:25:18,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 11:25:18,214 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 11:25:18,214 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 11:25:18,214 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-12-14 11:25:18,214 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-12-14 11:25:18,214 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-12-14 11:25:18,215 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-12-14 11:25:18,215 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-12-14 11:25:18,215 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-12-14 11:25:18,215 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-12-14 11:25:18,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:25:18,215 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2022-12-14 11:25:18,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2022-12-14 11:25:18,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-12-14 11:25:18,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-12-14 11:25:18,901 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:25:18,904 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:25:19,153 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 11:25:22,693 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-12-14 11:25:22,827 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:25:24,119 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:25:24,119 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 11:25:24,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:25:24 BoogieIcfgContainer [2022-12-14 11:25:24,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:25:24,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:25:24,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:25:24,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:25:24,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:25:14" (1/3) ... [2022-12-14 11:25:24,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3912ad44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:25:24, skipping insertion in model container [2022-12-14 11:25:24,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:17" (2/3) ... [2022-12-14 11:25:24,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3912ad44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:25:24, skipping insertion in model container [2022-12-14 11:25:24,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:25:24" (3/3) ... [2022-12-14 11:25:24,131 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i [2022-12-14 11:25:24,147 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:25:24,147 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-14 11:25:24,226 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:25:24,231 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;@5dcc4d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:25:24,232 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-14 11:25:24,242 INFO L276 IsEmpty]: Start isEmpty. Operand has 1940 states, 1088 states have (on average 1.255514705882353) internal successors, (1366), 1139 states have internal predecessors, (1366), 714 states have call successors, (714), 136 states have call predecessors, (714), 135 states have return successors, (709), 694 states have call predecessors, (709), 709 states have call successors, (709) [2022-12-14 11:25:24,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-12-14 11:25:24,253 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:25:24,254 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:25:24,254 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 11:25:24,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:25:24,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1529137260, now seen corresponding path program 1 times [2022-12-14 11:25:24,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:25:24,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788405989] [2022-12-14 11:25:24,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:25:24,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:25:24,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:25:24,854 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-12-14 11:25:24,854 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:25:24,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788405989] [2022-12-14 11:25:24,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788405989] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:25:24,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:25:24,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:25:24,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871731399] [2022-12-14 11:25:24,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:25:24,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:25:24,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:25:24,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:25:24,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:25:24,890 INFO L87 Difference]: Start difference. First operand has 1940 states, 1088 states have (on average 1.255514705882353) internal successors, (1366), 1139 states have internal predecessors, (1366), 714 states have call successors, (714), 136 states have call predecessors, (714), 135 states have return successors, (709), 694 states have call predecessors, (709), 709 states have call successors, (709) Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-14 11:25:27,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:25:27,425 INFO L93 Difference]: Finished difference Result 5726 states and 8386 transitions. [2022-12-14 11:25:27,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:25:27,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 97 [2022-12-14 11:25:27,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:25:27,466 INFO L225 Difference]: With dead ends: 5726 [2022-12-14 11:25:27,466 INFO L226 Difference]: Without dead ends: 3793 [2022-12-14 11:25:27,482 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 11:25:27,485 INFO L413 NwaCegarLoop]: 3154 mSDtfsCounter, 2700 mSDsluCounter, 2443 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2700 SdHoareTripleChecker+Valid, 5597 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:25:27,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2700 Valid, 5597 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 11:25:27,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3793 states. [2022-12-14 11:25:27,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3793 to 3789. [2022-12-14 11:25:27,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3789 states, 2135 states have (on average 1.2515222482435597) internal successors, (2672), 2235 states have internal predecessors, (2672), 1384 states have call successors, (1384), 268 states have call predecessors, (1384), 267 states have return successors, (1381), 1351 states have call predecessors, (1381), 1381 states have call successors, (1381) [2022-12-14 11:25:27,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3789 states to 3789 states and 5437 transitions. [2022-12-14 11:25:27,758 INFO L78 Accepts]: Start accepts. Automaton has 3789 states and 5437 transitions. Word has length 97 [2022-12-14 11:25:27,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:25:27,758 INFO L495 AbstractCegarLoop]: Abstraction has 3789 states and 5437 transitions. [2022-12-14 11:25:27,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-14 11:25:27,758 INFO L276 IsEmpty]: Start isEmpty. Operand 3789 states and 5437 transitions. [2022-12-14 11:25:27,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-12-14 11:25:27,762 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:25:27,762 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:25:27,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:25:27,762 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 11:25:27,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:25:27,763 INFO L85 PathProgramCache]: Analyzing trace with hash -523531328, now seen corresponding path program 1 times [2022-12-14 11:25:27,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:25:27,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124202952] [2022-12-14 11:25:27,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:25:27,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:25:27,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:25:28,298 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-12-14 11:25:28,298 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:25:28,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124202952] [2022-12-14 11:25:28,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124202952] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:25:28,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:25:28,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 11:25:28,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984399578] [2022-12-14 11:25:28,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:25:28,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 11:25:28,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:25:28,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 11:25:28,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:25:28,302 INFO L87 Difference]: Start difference. First operand 3789 states and 5437 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 11:25:34,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:25:34,430 INFO L93 Difference]: Finished difference Result 8368 states and 11879 transitions. [2022-12-14 11:25:34,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 11:25:34,431 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 102 [2022-12-14 11:25:34,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:25:34,450 INFO L225 Difference]: With dead ends: 8368 [2022-12-14 11:25:34,450 INFO L226 Difference]: Without dead ends: 4596 [2022-12-14 11:25:34,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:25:34,463 INFO L413 NwaCegarLoop]: 3433 mSDtfsCounter, 4652 mSDsluCounter, 5520 mSDsCounter, 0 mSdLazyCounter, 3104 mSolverCounterSat, 1295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4760 SdHoareTripleChecker+Valid, 8953 SdHoareTripleChecker+Invalid, 4399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1295 IncrementalHoareTripleChecker+Valid, 3104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-12-14 11:25:34,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4760 Valid, 8953 Invalid, 4399 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1295 Valid, 3104 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-12-14 11:25:34,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4596 states. [2022-12-14 11:25:34,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4596 to 4542. [2022-12-14 11:25:34,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4542 states, 2578 states have (on average 1.2428238944918542) internal successors, (3204), 2678 states have internal predecessors, (3204), 1581 states have call successors, (1581), 381 states have call predecessors, (1581), 380 states have return successors, (1578), 1554 states have call predecessors, (1578), 1578 states have call successors, (1578) [2022-12-14 11:25:34,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4542 states to 4542 states and 6363 transitions. [2022-12-14 11:25:34,618 INFO L78 Accepts]: Start accepts. Automaton has 4542 states and 6363 transitions. Word has length 102 [2022-12-14 11:25:34,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:25:34,618 INFO L495 AbstractCegarLoop]: Abstraction has 4542 states and 6363 transitions. [2022-12-14 11:25:34,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 11:25:34,618 INFO L276 IsEmpty]: Start isEmpty. Operand 4542 states and 6363 transitions. [2022-12-14 11:25:34,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-12-14 11:25:34,621 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:25:34,622 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:25:34,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 11:25:34,622 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 11:25:34,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:25:34,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1837751451, now seen corresponding path program 1 times [2022-12-14 11:25:34,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:25:34,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706220402] [2022-12-14 11:25:34,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:25:34,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:25:34,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:25:34,792 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-12-14 11:25:34,792 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:25:34,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706220402] [2022-12-14 11:25:34,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706220402] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:25:34,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:25:34,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:25:34,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834743923] [2022-12-14 11:25:34,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:25:34,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:25:34,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:25:34,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:25:34,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:25:34,794 INFO L87 Difference]: Start difference. First operand 4542 states and 6363 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-14 11:25:37,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:25:37,447 INFO L93 Difference]: Finished difference Result 12310 states and 17263 transitions. [2022-12-14 11:25:37,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:25:37,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 105 [2022-12-14 11:25:37,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:25:37,489 INFO L225 Difference]: With dead ends: 12310 [2022-12-14 11:25:37,489 INFO L226 Difference]: Without dead ends: 7785 [2022-12-14 11:25:37,507 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 11:25:37,508 INFO L413 NwaCegarLoop]: 3374 mSDtfsCounter, 2672 mSDsluCounter, 2296 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2672 SdHoareTripleChecker+Valid, 5670 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:25:37,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2672 Valid, 5670 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-14 11:25:37,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7785 states. [2022-12-14 11:25:37,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7785 to 7756. [2022-12-14 11:25:37,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7756 states, 4408 states have (on average 1.243421052631579) internal successors, (5481), 4587 states have internal predecessors, (5481), 2689 states have call successors, (2689), 664 states have call predecessors, (2689), 656 states have return successors, (2705), 2625 states have call predecessors, (2705), 2686 states have call successors, (2705) [2022-12-14 11:25:37,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7756 states to 7756 states and 10875 transitions. [2022-12-14 11:25:37,811 INFO L78 Accepts]: Start accepts. Automaton has 7756 states and 10875 transitions. Word has length 105 [2022-12-14 11:25:37,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:25:37,811 INFO L495 AbstractCegarLoop]: Abstraction has 7756 states and 10875 transitions. [2022-12-14 11:25:37,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-14 11:25:37,812 INFO L276 IsEmpty]: Start isEmpty. Operand 7756 states and 10875 transitions. [2022-12-14 11:25:37,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-12-14 11:25:37,814 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:25:37,814 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:25:37,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 11:25:37,814 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 11:25:37,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:25:37,815 INFO L85 PathProgramCache]: Analyzing trace with hash 403441894, now seen corresponding path program 1 times [2022-12-14 11:25:37,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:25:37,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159895454] [2022-12-14 11:25:37,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:25:37,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:25:37,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:25:37,934 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-12-14 11:25:37,934 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:25:37,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159895454] [2022-12-14 11:25:37,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159895454] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:25:37,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:25:37,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:25:37,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834714834] [2022-12-14 11:25:37,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:25:37,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:25:37,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:25:37,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:25:37,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:25:37,937 INFO L87 Difference]: Start difference. First operand 7756 states and 10875 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-12-14 11:25:40,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:25:40,174 INFO L93 Difference]: Finished difference Result 20270 states and 28479 transitions. [2022-12-14 11:25:40,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:25:40,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 117 [2022-12-14 11:25:40,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:25:40,222 INFO L225 Difference]: With dead ends: 20270 [2022-12-14 11:25:40,222 INFO L226 Difference]: Without dead ends: 12531 [2022-12-14 11:25:40,242 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 11:25:40,243 INFO L413 NwaCegarLoop]: 3073 mSDtfsCounter, 2399 mSDsluCounter, 2407 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2399 SdHoareTripleChecker+Valid, 5480 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-14 11:25:40,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2399 Valid, 5480 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-14 11:25:40,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12531 states. [2022-12-14 11:25:40,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12531 to 12501. [2022-12-14 11:25:40,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12501 states, 7075 states have (on average 1.2364664310954063) internal successors, (8748), 7418 states have internal predecessors, (8748), 4385 states have call successors, (4385), 1055 states have call predecessors, (4385), 1038 states have return successors, (4422), 4253 states have call predecessors, (4422), 4382 states have call successors, (4422) [2022-12-14 11:25:40,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12501 states to 12501 states and 17555 transitions. [2022-12-14 11:25:40,674 INFO L78 Accepts]: Start accepts. Automaton has 12501 states and 17555 transitions. Word has length 117 [2022-12-14 11:25:40,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:25:40,675 INFO L495 AbstractCegarLoop]: Abstraction has 12501 states and 17555 transitions. [2022-12-14 11:25:40,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-12-14 11:25:40,676 INFO L276 IsEmpty]: Start isEmpty. Operand 12501 states and 17555 transitions. [2022-12-14 11:25:40,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-12-14 11:25:40,677 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:25:40,677 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:25:40,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 11:25:40,677 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 11:25:40,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:25:40,677 INFO L85 PathProgramCache]: Analyzing trace with hash 984662079, now seen corresponding path program 1 times [2022-12-14 11:25:40,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:25:40,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74688355] [2022-12-14 11:25:40,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:25:40,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:25:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:25:40,984 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2022-12-14 11:25:40,984 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:25:40,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74688355] [2022-12-14 11:25:40,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74688355] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:25:40,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:25:40,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:25:40,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545482125] [2022-12-14 11:25:40,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:25:40,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:25:40,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:25:40,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:25:40,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:25:40,986 INFO L87 Difference]: Start difference. First operand 12501 states and 17555 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 11:25:43,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:25:43,942 INFO L93 Difference]: Finished difference Result 12507 states and 17560 transitions. [2022-12-14 11:25:43,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:25:43,943 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2022-12-14 11:25:43,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:25:43,981 INFO L225 Difference]: With dead ends: 12507 [2022-12-14 11:25:43,981 INFO L226 Difference]: Without dead ends: 12505 [2022-12-14 11:25:43,987 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 11:25:43,988 INFO L413 NwaCegarLoop]: 2450 mSDtfsCounter, 2725 mSDsluCounter, 4886 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2737 SdHoareTripleChecker+Valid, 7336 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:25:43,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2737 Valid, 7336 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 11:25:43,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12505 states. [2022-12-14 11:25:44,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12505 to 12505. [2022-12-14 11:25:44,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12505 states, 7078 states have (on average 1.2363662051426956) internal successors, (8751), 7421 states have internal predecessors, (8751), 4385 states have call successors, (4385), 1056 states have call predecessors, (4385), 1039 states have return successors, (4422), 4253 states have call predecessors, (4422), 4382 states have call successors, (4422) [2022-12-14 11:25:44,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12505 states to 12505 states and 17558 transitions. [2022-12-14 11:25:44,480 INFO L78 Accepts]: Start accepts. Automaton has 12505 states and 17558 transitions. Word has length 135 [2022-12-14 11:25:44,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:25:44,480 INFO L495 AbstractCegarLoop]: Abstraction has 12505 states and 17558 transitions. [2022-12-14 11:25:44,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 11:25:44,481 INFO L276 IsEmpty]: Start isEmpty. Operand 12505 states and 17558 transitions. [2022-12-14 11:25:44,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-12-14 11:25:44,482 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:25:44,483 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:25:44,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 11:25:44,483 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 11:25:44,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:25:44,483 INFO L85 PathProgramCache]: Analyzing trace with hash 378405226, now seen corresponding path program 1 times [2022-12-14 11:25:44,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:25:44,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336657825] [2022-12-14 11:25:44,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:25:44,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:25:44,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:25:44,744 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2022-12-14 11:25:44,744 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:25:44,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336657825] [2022-12-14 11:25:44,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336657825] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:25:44,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:25:44,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:25:44,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58760660] [2022-12-14 11:25:44,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:25:44,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:25:44,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:25:44,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:25:44,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:25:44,746 INFO L87 Difference]: Start difference. First operand 12505 states and 17558 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 11:25:47,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:25:49,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:25:49,549 INFO L93 Difference]: Finished difference Result 12947 states and 18023 transitions. [2022-12-14 11:25:49,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:25:49,550 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 140 [2022-12-14 11:25:49,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:25:49,586 INFO L225 Difference]: With dead ends: 12947 [2022-12-14 11:25:49,586 INFO L226 Difference]: Without dead ends: 12945 [2022-12-14 11:25:49,591 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 11:25:49,592 INFO L413 NwaCegarLoop]: 2486 mSDtfsCounter, 2689 mSDsluCounter, 5059 mSDsCounter, 0 mSdLazyCounter, 982 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2700 SdHoareTripleChecker+Valid, 7545 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:25:49,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2700 Valid, 7545 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 982 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-12-14 11:25:49,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12945 states. [2022-12-14 11:25:50,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12945 to 12941. [2022-12-14 11:25:50,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12941 states, 7293 states have (on average 1.2326888797477034) internal successors, (8990), 7648 states have internal predecessors, (8990), 4496 states have call successors, (4496), 1166 states have call predecessors, (4496), 1149 states have return successors, (4533), 4364 states have call predecessors, (4533), 4493 states have call successors, (4533) [2022-12-14 11:25:50,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12941 states to 12941 states and 18019 transitions. [2022-12-14 11:25:50,158 INFO L78 Accepts]: Start accepts. Automaton has 12941 states and 18019 transitions. Word has length 140 [2022-12-14 11:25:50,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:25:50,159 INFO L495 AbstractCegarLoop]: Abstraction has 12941 states and 18019 transitions. [2022-12-14 11:25:50,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 11:25:50,159 INFO L276 IsEmpty]: Start isEmpty. Operand 12941 states and 18019 transitions. [2022-12-14 11:25:50,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-12-14 11:25:50,160 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:25:50,160 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 6, 6, 3, 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] [2022-12-14 11:25:50,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 11:25:50,161 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 11:25:50,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:25:50,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1456875892, now seen corresponding path program 1 times [2022-12-14 11:25:50,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:25:50,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741586287] [2022-12-14 11:25:50,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:25:50,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:25:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:25:50,404 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2022-12-14 11:25:50,404 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:25:50,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741586287] [2022-12-14 11:25:50,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741586287] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:25:50,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:25:50,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:25:50,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21806128] [2022-12-14 11:25:50,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:25:50,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:25:50,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:25:50,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:25:50,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:25:50,405 INFO L87 Difference]: Start difference. First operand 12941 states and 18019 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 11:25:53,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:25:53,532 INFO L93 Difference]: Finished difference Result 12947 states and 18024 transitions. [2022-12-14 11:25:53,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:25:53,532 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 154 [2022-12-14 11:25:53,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:25:53,565 INFO L225 Difference]: With dead ends: 12947 [2022-12-14 11:25:53,565 INFO L226 Difference]: Without dead ends: 12945 [2022-12-14 11:25:53,569 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 11:25:53,570 INFO L413 NwaCegarLoop]: 2453 mSDtfsCounter, 2716 mSDsluCounter, 4886 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2726 SdHoareTripleChecker+Valid, 7339 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:25:53,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2726 Valid, 7339 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 11:25:53,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12945 states. [2022-12-14 11:25:54,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12945 to 12945. [2022-12-14 11:25:54,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12945 states, 7296 states have (on average 1.232593201754386) internal successors, (8993), 7651 states have internal predecessors, (8993), 4496 states have call successors, (4496), 1167 states have call predecessors, (4496), 1150 states have return successors, (4533), 4364 states have call predecessors, (4533), 4493 states have call successors, (4533) [2022-12-14 11:25:54,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12945 states to 12945 states and 18022 transitions. [2022-12-14 11:25:54,115 INFO L78 Accepts]: Start accepts. Automaton has 12945 states and 18022 transitions. Word has length 154 [2022-12-14 11:25:54,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:25:54,115 INFO L495 AbstractCegarLoop]: Abstraction has 12945 states and 18022 transitions. [2022-12-14 11:25:54,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 11:25:54,116 INFO L276 IsEmpty]: Start isEmpty. Operand 12945 states and 18022 transitions. [2022-12-14 11:25:54,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-12-14 11:25:54,117 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:25:54,118 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:25:54,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 11:25:54,118 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 11:25:54,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:25:54,119 INFO L85 PathProgramCache]: Analyzing trace with hash -504251830, now seen corresponding path program 1 times [2022-12-14 11:25:54,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:25:54,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368477741] [2022-12-14 11:25:54,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:25:54,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:25:54,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:25:54,563 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2022-12-14 11:25:54,563 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:25:54,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368477741] [2022-12-14 11:25:54,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368477741] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:25:54,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:25:54,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:25:54,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251185973] [2022-12-14 11:25:54,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:25:54,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:25:54,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:25:54,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:25:54,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:25:54,565 INFO L87 Difference]: Start difference. First operand 12945 states and 18022 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 11:25:57,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:25:57,240 INFO L93 Difference]: Finished difference Result 12951 states and 18027 transitions. [2022-12-14 11:25:57,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:25:57,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 150 [2022-12-14 11:25:57,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:25:57,274 INFO L225 Difference]: With dead ends: 12951 [2022-12-14 11:25:57,274 INFO L226 Difference]: Without dead ends: 12949 [2022-12-14 11:25:57,279 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 11:25:57,280 INFO L413 NwaCegarLoop]: 2453 mSDtfsCounter, 2720 mSDsluCounter, 4886 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2729 SdHoareTripleChecker+Valid, 7339 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:25:57,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2729 Valid, 7339 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 11:25:57,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12949 states. [2022-12-14 11:25:57,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12949 to 12949. [2022-12-14 11:25:57,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12949 states, 7299 states have (on average 1.2324976024112893) internal successors, (8996), 7654 states have internal predecessors, (8996), 4496 states have call successors, (4496), 1168 states have call predecessors, (4496), 1151 states have return successors, (4533), 4364 states have call predecessors, (4533), 4493 states have call successors, (4533) [2022-12-14 11:25:57,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12949 states to 12949 states and 18025 transitions. [2022-12-14 11:25:57,869 INFO L78 Accepts]: Start accepts. Automaton has 12949 states and 18025 transitions. Word has length 150 [2022-12-14 11:25:57,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:25:57,869 INFO L495 AbstractCegarLoop]: Abstraction has 12949 states and 18025 transitions. [2022-12-14 11:25:57,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 11:25:57,869 INFO L276 IsEmpty]: Start isEmpty. Operand 12949 states and 18025 transitions. [2022-12-14 11:25:57,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-12-14 11:25:57,871 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:25:57,871 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:25:57,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 11:25:57,871 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 11:25:57,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:25:57,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1510613633, now seen corresponding path program 1 times [2022-12-14 11:25:57,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:25:57,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357153083] [2022-12-14 11:25:57,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:25:57,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:25:57,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:25:58,083 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2022-12-14 11:25:58,083 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:25:58,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357153083] [2022-12-14 11:25:58,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357153083] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:25:58,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:25:58,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:25:58,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516164021] [2022-12-14 11:25:58,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:25:58,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:25:58,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:25:58,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:25:58,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:25:58,085 INFO L87 Difference]: Start difference. First operand 12949 states and 18025 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 11:26:01,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:26:01,175 INFO L93 Difference]: Finished difference Result 13256 states and 18277 transitions. [2022-12-14 11:26:01,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:26:01,175 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 155 [2022-12-14 11:26:01,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:26:01,204 INFO L225 Difference]: With dead ends: 13256 [2022-12-14 11:26:01,204 INFO L226 Difference]: Without dead ends: 13254 [2022-12-14 11:26:01,208 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 11:26:01,208 INFO L413 NwaCegarLoop]: 2474 mSDtfsCounter, 1612 mSDsluCounter, 5981 mSDsCounter, 0 mSdLazyCounter, 1061 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1620 SdHoareTripleChecker+Valid, 8455 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:26:01,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1620 Valid, 8455 Invalid, 1063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1061 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 11:26:01,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13254 states. [2022-12-14 11:26:01,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13254 to 13252. [2022-12-14 11:26:01,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13252 states, 7462 states have (on average 1.2292950951487538) internal successors, (9173), 7825 states have internal predecessors, (9173), 4532 states have call successors, (4532), 1272 states have call predecessors, (4532), 1255 states have return successors, (4569), 4400 states have call predecessors, (4569), 4529 states have call successors, (4569) [2022-12-14 11:26:01,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13252 states to 13252 states and 18274 transitions. [2022-12-14 11:26:01,776 INFO L78 Accepts]: Start accepts. Automaton has 13252 states and 18274 transitions. Word has length 155 [2022-12-14 11:26:01,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:26:01,777 INFO L495 AbstractCegarLoop]: Abstraction has 13252 states and 18274 transitions. [2022-12-14 11:26:01,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 11:26:01,777 INFO L276 IsEmpty]: Start isEmpty. Operand 13252 states and 18274 transitions. [2022-12-14 11:26:01,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-12-14 11:26:01,778 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:26:01,778 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:26:01,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 11:26:01,778 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 11:26:01,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:26:01,779 INFO L85 PathProgramCache]: Analyzing trace with hash -660763862, now seen corresponding path program 1 times [2022-12-14 11:26:01,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:26:01,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225953134] [2022-12-14 11:26:01,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:26:01,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:26:01,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:26:01,981 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-12-14 11:26:01,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:26:01,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225953134] [2022-12-14 11:26:01,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225953134] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:26:01,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:26:01,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:26:01,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838326597] [2022-12-14 11:26:01,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:26:01,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:26:01,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:26:01,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:26:01,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:26:01,983 INFO L87 Difference]: Start difference. First operand 13252 states and 18274 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 11:26:05,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:26:05,581 INFO L93 Difference]: Finished difference Result 13258 states and 18279 transitions. [2022-12-14 11:26:05,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:26:05,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 160 [2022-12-14 11:26:05,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:26:05,622 INFO L225 Difference]: With dead ends: 13258 [2022-12-14 11:26:05,622 INFO L226 Difference]: Without dead ends: 13256 [2022-12-14 11:26:05,627 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 11:26:05,627 INFO L413 NwaCegarLoop]: 2453 mSDtfsCounter, 2720 mSDsluCounter, 4886 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2727 SdHoareTripleChecker+Valid, 7339 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:26:05,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2727 Valid, 7339 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-12-14 11:26:05,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13256 states. [2022-12-14 11:26:06,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13256 to 13256. [2022-12-14 11:26:06,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13256 states, 7465 states have (on average 1.2292029470864032) internal successors, (9176), 7828 states have internal predecessors, (9176), 4532 states have call successors, (4532), 1273 states have call predecessors, (4532), 1256 states have return successors, (4569), 4400 states have call predecessors, (4569), 4529 states have call successors, (4569) [2022-12-14 11:26:06,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13256 states to 13256 states and 18277 transitions. [2022-12-14 11:26:06,283 INFO L78 Accepts]: Start accepts. Automaton has 13256 states and 18277 transitions. Word has length 160 [2022-12-14 11:26:06,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:26:06,283 INFO L495 AbstractCegarLoop]: Abstraction has 13256 states and 18277 transitions. [2022-12-14 11:26:06,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 11:26:06,284 INFO L276 IsEmpty]: Start isEmpty. Operand 13256 states and 18277 transitions. [2022-12-14 11:26:06,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-12-14 11:26:06,285 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:26:06,285 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:26:06,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 11:26:06,285 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 11:26:06,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:26:06,286 INFO L85 PathProgramCache]: Analyzing trace with hash -208590004, now seen corresponding path program 1 times [2022-12-14 11:26:06,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:26:06,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931474117] [2022-12-14 11:26:06,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:26:06,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:26:06,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:26:06,492 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2022-12-14 11:26:06,492 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:26:06,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931474117] [2022-12-14 11:26:06,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931474117] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:26:06,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:26:06,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:26:06,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655193097] [2022-12-14 11:26:06,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:26:06,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:26:06,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:26:06,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:26:06,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:26:06,494 INFO L87 Difference]: Start difference. First operand 13256 states and 18277 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 11:26:10,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:26:10,002 INFO L93 Difference]: Finished difference Result 13262 states and 18282 transitions. [2022-12-14 11:26:10,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:26:10,003 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 174 [2022-12-14 11:26:10,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:26:10,037 INFO L225 Difference]: With dead ends: 13262 [2022-12-14 11:26:10,037 INFO L226 Difference]: Without dead ends: 13260 [2022-12-14 11:26:10,044 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 11:26:10,044 INFO L413 NwaCegarLoop]: 2453 mSDtfsCounter, 2716 mSDsluCounter, 4886 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2722 SdHoareTripleChecker+Valid, 7339 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:26:10,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2722 Valid, 7339 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-12-14 11:26:10,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13260 states. [2022-12-14 11:26:10,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13260 to 13260. [2022-12-14 11:26:10,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13260 states, 7468 states have (on average 1.2291108730583824) internal successors, (9179), 7831 states have internal predecessors, (9179), 4532 states have call successors, (4532), 1274 states have call predecessors, (4532), 1257 states have return successors, (4569), 4400 states have call predecessors, (4569), 4529 states have call successors, (4569) [2022-12-14 11:26:10,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13260 states to 13260 states and 18280 transitions. [2022-12-14 11:26:10,808 INFO L78 Accepts]: Start accepts. Automaton has 13260 states and 18280 transitions. Word has length 174 [2022-12-14 11:26:10,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:26:10,809 INFO L495 AbstractCegarLoop]: Abstraction has 13260 states and 18280 transitions. [2022-12-14 11:26:10,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 11:26:10,809 INFO L276 IsEmpty]: Start isEmpty. Operand 13260 states and 18280 transitions. [2022-12-14 11:26:10,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-12-14 11:26:10,811 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:26:10,812 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 8, 7, 7, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:26:10,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 11:26:10,812 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 11:26:10,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:26:10,812 INFO L85 PathProgramCache]: Analyzing trace with hash -246189046, now seen corresponding path program 1 times [2022-12-14 11:26:10,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:26:10,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62003645] [2022-12-14 11:26:10,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:26:10,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:26:10,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:26:11,070 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2022-12-14 11:26:11,071 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:26:11,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62003645] [2022-12-14 11:26:11,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62003645] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:26:11,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:26:11,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:26:11,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910097381] [2022-12-14 11:26:11,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:26:11,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:26:11,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:26:11,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:26:11,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:26:11,072 INFO L87 Difference]: Start difference. First operand 13260 states and 18280 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-14 11:26:13,911 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 11:26:15,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:26:15,565 INFO L93 Difference]: Finished difference Result 13266 states and 18285 transitions. [2022-12-14 11:26:15,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:26:15,565 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 170 [2022-12-14 11:26:15,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:26:15,596 INFO L225 Difference]: With dead ends: 13266 [2022-12-14 11:26:15,596 INFO L226 Difference]: Without dead ends: 13264 [2022-12-14 11:26:15,601 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 11:26:15,601 INFO L413 NwaCegarLoop]: 2453 mSDtfsCounter, 2720 mSDsluCounter, 4886 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2725 SdHoareTripleChecker+Valid, 7339 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-12-14 11:26:15,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2725 Valid, 7339 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-12-14 11:26:15,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13264 states. [2022-12-14 11:26:16,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13264 to 13264. [2022-12-14 11:26:16,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13264 states, 7471 states have (on average 1.2290188729755054) internal successors, (9182), 7834 states have internal predecessors, (9182), 4532 states have call successors, (4532), 1275 states have call predecessors, (4532), 1258 states have return successors, (4569), 4400 states have call predecessors, (4569), 4529 states have call successors, (4569) [2022-12-14 11:26:16,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13264 states to 13264 states and 18283 transitions. [2022-12-14 11:26:16,299 INFO L78 Accepts]: Start accepts. Automaton has 13264 states and 18283 transitions. Word has length 170 [2022-12-14 11:26:16,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:26:16,299 INFO L495 AbstractCegarLoop]: Abstraction has 13264 states and 18283 transitions. [2022-12-14 11:26:16,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-14 11:26:16,299 INFO L276 IsEmpty]: Start isEmpty. Operand 13264 states and 18283 transitions. [2022-12-14 11:26:16,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-12-14 11:26:16,301 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:26:16,301 INFO L195 NwaCegarLoop]: trace histogram [14, 8, 8, 8, 8, 8, 8, 4, 4, 3, 3, 3, 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] [2022-12-14 11:26:16,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 11:26:16,301 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 11:26:16,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:26:16,302 INFO L85 PathProgramCache]: Analyzing trace with hash -164942507, now seen corresponding path program 1 times [2022-12-14 11:26:16,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:26:16,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575587962] [2022-12-14 11:26:16,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:26:16,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:26:16,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:26:16,432 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2022-12-14 11:26:16,432 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:26:16,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575587962] [2022-12-14 11:26:16,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575587962] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:26:16,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:26:16,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:26:16,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021703839] [2022-12-14 11:26:16,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:26:16,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:26:16,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:26:16,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:26:16,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:26:16,434 INFO L87 Difference]: Start difference. First operand 13264 states and 18283 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-12-14 11:26:19,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:26:19,784 INFO L93 Difference]: Finished difference Result 28248 states and 38812 transitions. [2022-12-14 11:26:19,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:26:19,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 168 [2022-12-14 11:26:19,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:26:19,816 INFO L225 Difference]: With dead ends: 28248 [2022-12-14 11:26:19,817 INFO L226 Difference]: Without dead ends: 15054 [2022-12-14 11:26:19,841 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 11:26:19,841 INFO L413 NwaCegarLoop]: 3167 mSDtfsCounter, 893 mSDsluCounter, 2412 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 5579 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:26:19,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [893 Valid, 5579 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 11:26:19,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15054 states. [2022-12-14 11:26:20,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15054 to 14993. [2022-12-14 11:26:20,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14993 states, 8473 states have (on average 1.2264841260474448) internal successors, (10392), 8866 states have internal predecessors, (10392), 5034 states have call successors, (5034), 1500 states have call predecessors, (5034), 1483 states have return successors, (5071), 4890 states have call predecessors, (5071), 5031 states have call successors, (5071) [2022-12-14 11:26:20,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14993 states to 14993 states and 20497 transitions. [2022-12-14 11:26:20,618 INFO L78 Accepts]: Start accepts. Automaton has 14993 states and 20497 transitions. Word has length 168 [2022-12-14 11:26:20,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:26:20,618 INFO L495 AbstractCegarLoop]: Abstraction has 14993 states and 20497 transitions. [2022-12-14 11:26:20,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-12-14 11:26:20,618 INFO L276 IsEmpty]: Start isEmpty. Operand 14993 states and 20497 transitions. [2022-12-14 11:26:20,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-12-14 11:26:20,619 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:26:20,619 INFO L195 NwaCegarLoop]: trace histogram [12, 9, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:26:20,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 11:26:20,620 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 11:26:20,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:26:20,620 INFO L85 PathProgramCache]: Analyzing trace with hash 64395967, now seen corresponding path program 1 times [2022-12-14 11:26:20,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:26:20,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559677417] [2022-12-14 11:26:20,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:26:20,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:26:20,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:26:20,832 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-12-14 11:26:20,832 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:26:20,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559677417] [2022-12-14 11:26:20,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559677417] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:26:20,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:26:20,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:26:20,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916715479] [2022-12-14 11:26:20,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:26:20,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:26:20,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:26:20,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:26:20,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:26:20,834 INFO L87 Difference]: Start difference. First operand 14993 states and 20497 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 11:26:24,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:26:24,184 INFO L93 Difference]: Finished difference Result 14999 states and 20502 transitions. [2022-12-14 11:26:24,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:26:24,185 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 175 [2022-12-14 11:26:24,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:26:24,221 INFO L225 Difference]: With dead ends: 14999 [2022-12-14 11:26:24,221 INFO L226 Difference]: Without dead ends: 14997 [2022-12-14 11:26:24,228 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 11:26:24,229 INFO L413 NwaCegarLoop]: 2453 mSDtfsCounter, 2720 mSDsluCounter, 4886 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2724 SdHoareTripleChecker+Valid, 7339 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:26:24,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2724 Valid, 7339 Invalid, 963 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 11:26:24,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14997 states. [2022-12-14 11:26:25,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14997 to 14997. [2022-12-14 11:26:25,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14997 states, 8476 states have (on average 1.2264039641340254) internal successors, (10395), 8869 states have internal predecessors, (10395), 5034 states have call successors, (5034), 1501 states have call predecessors, (5034), 1484 states have return successors, (5071), 4890 states have call predecessors, (5071), 5031 states have call successors, (5071) [2022-12-14 11:26:25,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14997 states to 14997 states and 20500 transitions. [2022-12-14 11:26:25,076 INFO L78 Accepts]: Start accepts. Automaton has 14997 states and 20500 transitions. Word has length 175 [2022-12-14 11:26:25,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:26:25,076 INFO L495 AbstractCegarLoop]: Abstraction has 14997 states and 20500 transitions. [2022-12-14 11:26:25,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 11:26:25,077 INFO L276 IsEmpty]: Start isEmpty. Operand 14997 states and 20500 transitions. [2022-12-14 11:26:25,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-14 11:26:25,078 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:26:25,078 INFO L195 NwaCegarLoop]: trace histogram [12, 10, 9, 9, 8, 8, 8, 8, 8, 8, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:26:25,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 11:26:25,078 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 11:26:25,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:26:25,079 INFO L85 PathProgramCache]: Analyzing trace with hash -314985955, now seen corresponding path program 1 times [2022-12-14 11:26:25,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:26:25,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69147472] [2022-12-14 11:26:25,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:26:25,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:26:25,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:26:25,286 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2022-12-14 11:26:25,286 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:26:25,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69147472] [2022-12-14 11:26:25,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69147472] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:26:25,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:26:25,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:26:25,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17611713] [2022-12-14 11:26:25,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:26:25,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:26:25,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:26:25,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:26:25,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:26:25,288 INFO L87 Difference]: Start difference. First operand 14997 states and 20500 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 11:26:28,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:26:28,883 INFO L93 Difference]: Finished difference Result 15003 states and 20505 transitions. [2022-12-14 11:26:28,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:26:28,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 189 [2022-12-14 11:26:28,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:26:28,923 INFO L225 Difference]: With dead ends: 15003 [2022-12-14 11:26:28,923 INFO L226 Difference]: Without dead ends: 15001 [2022-12-14 11:26:28,928 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 11:26:28,929 INFO L413 NwaCegarLoop]: 2453 mSDtfsCounter, 2716 mSDsluCounter, 4886 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2719 SdHoareTripleChecker+Valid, 7339 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:26:28,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2719 Valid, 7339 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-14 11:26:28,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15001 states. [2022-12-14 11:26:29,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15001 to 15001. [2022-12-14 11:26:29,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15001 states, 8479 states have (on average 1.2263238589456305) internal successors, (10398), 8872 states have internal predecessors, (10398), 5034 states have call successors, (5034), 1502 states have call predecessors, (5034), 1485 states have return successors, (5071), 4890 states have call predecessors, (5071), 5031 states have call successors, (5071) [2022-12-14 11:26:30,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15001 states to 15001 states and 20503 transitions. [2022-12-14 11:26:30,019 INFO L78 Accepts]: Start accepts. Automaton has 15001 states and 20503 transitions. Word has length 189 [2022-12-14 11:26:30,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:26:30,020 INFO L495 AbstractCegarLoop]: Abstraction has 15001 states and 20503 transitions. [2022-12-14 11:26:30,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 11:26:30,020 INFO L276 IsEmpty]: Start isEmpty. Operand 15001 states and 20503 transitions. [2022-12-14 11:26:30,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-12-14 11:26:30,021 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:26:30,021 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 10, 10, 8, 8, 8, 8, 8, 8, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:26:30,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 11:26:30,022 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 11:26:30,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:26:30,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1959616524, now seen corresponding path program 1 times [2022-12-14 11:26:30,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:26:30,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41292699] [2022-12-14 11:26:30,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:26:30,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:26:30,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:26:30,322 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2022-12-14 11:26:30,322 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:26:30,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41292699] [2022-12-14 11:26:30,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41292699] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:26:30,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:26:30,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:26:30,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297482207] [2022-12-14 11:26:30,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:26:30,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:26:30,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:26:30,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:26:30,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:26:30,324 INFO L87 Difference]: Start difference. First operand 15001 states and 20503 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 11:26:33,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:26:33,892 INFO L93 Difference]: Finished difference Result 15007 states and 20508 transitions. [2022-12-14 11:26:33,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:26:33,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 194 [2022-12-14 11:26:33,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:26:33,928 INFO L225 Difference]: With dead ends: 15007 [2022-12-14 11:26:33,928 INFO L226 Difference]: Without dead ends: 15005 [2022-12-14 11:26:33,934 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 11:26:33,934 INFO L413 NwaCegarLoop]: 2453 mSDtfsCounter, 2716 mSDsluCounter, 4886 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2718 SdHoareTripleChecker+Valid, 7339 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-14 11:26:33,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2718 Valid, 7339 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-14 11:26:33,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15005 states. [2022-12-14 11:26:34,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15005 to 15005. [2022-12-14 11:26:34,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15005 states, 8482 states have (on average 1.2262438104220703) internal successors, (10401), 8875 states have internal predecessors, (10401), 5034 states have call successors, (5034), 1503 states have call predecessors, (5034), 1486 states have return successors, (5071), 4890 states have call predecessors, (5071), 5031 states have call successors, (5071) [2022-12-14 11:26:34,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15005 states to 15005 states and 20506 transitions. [2022-12-14 11:26:34,897 INFO L78 Accepts]: Start accepts. Automaton has 15005 states and 20506 transitions. Word has length 194 [2022-12-14 11:26:34,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:26:34,898 INFO L495 AbstractCegarLoop]: Abstraction has 15005 states and 20506 transitions. [2022-12-14 11:26:34,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 11:26:34,898 INFO L276 IsEmpty]: Start isEmpty. Operand 15005 states and 20506 transitions. [2022-12-14 11:26:34,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-12-14 11:26:34,899 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:26:34,899 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 8, 8, 8, 8, 8, 8, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:26:34,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 11:26:34,899 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 11:26:34,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:26:34,900 INFO L85 PathProgramCache]: Analyzing trace with hash 2138122045, now seen corresponding path program 1 times [2022-12-14 11:26:34,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:26:34,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545085831] [2022-12-14 11:26:34,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:26:34,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:26:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:26:35,128 INFO L134 CoverageAnalysis]: Checked inductivity of 591 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-12-14 11:26:35,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:26:35,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545085831] [2022-12-14 11:26:35,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545085831] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:26:35,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:26:35,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:26:35,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000693208] [2022-12-14 11:26:35,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:26:35,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:26:35,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:26:35,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:26:35,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:26:35,130 INFO L87 Difference]: Start difference. First operand 15005 states and 20506 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 11:26:38,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:26:38,230 INFO L93 Difference]: Finished difference Result 15011 states and 20511 transitions. [2022-12-14 11:26:38,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:26:38,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 199 [2022-12-14 11:26:38,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:26:38,283 INFO L225 Difference]: With dead ends: 15011 [2022-12-14 11:26:38,283 INFO L226 Difference]: Without dead ends: 15007 [2022-12-14 11:26:38,286 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 11:26:38,287 INFO L413 NwaCegarLoop]: 2453 mSDtfsCounter, 2716 mSDsluCounter, 4886 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2717 SdHoareTripleChecker+Valid, 7339 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:26:38,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2717 Valid, 7339 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 11:26:38,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15007 states. [2022-12-14 11:26:39,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15007 to 15007. [2022-12-14 11:26:39,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15007 states, 8484 states have (on average 1.226072607260726) internal successors, (10402), 8876 states have internal predecessors, (10402), 5034 states have call successors, (5034), 1504 states have call predecessors, (5034), 1486 states have return successors, (5071), 4890 states have call predecessors, (5071), 5031 states have call successors, (5071) [2022-12-14 11:26:39,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15007 states to 15007 states and 20507 transitions. [2022-12-14 11:26:39,370 INFO L78 Accepts]: Start accepts. Automaton has 15007 states and 20507 transitions. Word has length 199 [2022-12-14 11:26:39,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:26:39,371 INFO L495 AbstractCegarLoop]: Abstraction has 15007 states and 20507 transitions. [2022-12-14 11:26:39,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 11:26:39,371 INFO L276 IsEmpty]: Start isEmpty. Operand 15007 states and 20507 transitions. [2022-12-14 11:26:39,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-12-14 11:26:39,374 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:26:39,374 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:26:39,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 11:26:39,374 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 11:26:39,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:26:39,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1841104897, now seen corresponding path program 1 times [2022-12-14 11:26:39,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:26:39,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949072283] [2022-12-14 11:26:39,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:26:39,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:26:39,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:26:39,677 INFO L134 CoverageAnalysis]: Checked inductivity of 611 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 587 trivial. 0 not checked. [2022-12-14 11:26:39,677 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:26:39,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949072283] [2022-12-14 11:26:39,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949072283] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:26:39,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:26:39,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:26:39,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063579754] [2022-12-14 11:26:39,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:26:39,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:26:39,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:26:39,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:26:39,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:26:39,678 INFO L87 Difference]: Start difference. First operand 15007 states and 20507 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 11:26:44,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:26:44,236 INFO L93 Difference]: Finished difference Result 15007 states and 20507 transitions. [2022-12-14 11:26:44,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:26:44,237 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 195 [2022-12-14 11:26:44,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:26:44,272 INFO L225 Difference]: With dead ends: 15007 [2022-12-14 11:26:44,273 INFO L226 Difference]: Without dead ends: 14856 [2022-12-14 11:26:44,279 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 11:26:44,279 INFO L413 NwaCegarLoop]: 2451 mSDtfsCounter, 2716 mSDsluCounter, 4885 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2716 SdHoareTripleChecker+Valid, 7336 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:26:44,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2716 Valid, 7336 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 957 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-12-14 11:26:44,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14856 states. [2022-12-14 11:26:45,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14856 to 14856. [2022-12-14 11:26:45,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14856 states, 8426 states have (on average 1.2238309992879184) internal successors, (10312), 8786 states have internal predecessors, (10312), 4955 states have call successors, (4955), 1489 states have call predecessors, (4955), 1473 states have return successors, (4995), 4844 states have call predecessors, (4995), 4955 states have call successors, (4995) [2022-12-14 11:26:45,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14856 states to 14856 states and 20262 transitions. [2022-12-14 11:26:45,739 INFO L78 Accepts]: Start accepts. Automaton has 14856 states and 20262 transitions. Word has length 195 [2022-12-14 11:26:45,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:26:45,740 INFO L495 AbstractCegarLoop]: Abstraction has 14856 states and 20262 transitions. [2022-12-14 11:26:45,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 11:26:45,740 INFO L276 IsEmpty]: Start isEmpty. Operand 14856 states and 20262 transitions. [2022-12-14 11:26:45,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-12-14 11:26:45,742 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:26:45,743 INFO L195 NwaCegarLoop]: trace histogram [16, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 11:26:45,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 11:26:45,743 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 11:26:45,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:26:45,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1136958121, now seen corresponding path program 1 times [2022-12-14 11:26:45,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:26:45,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021595531] [2022-12-14 11:26:45,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:26:45,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:26:45,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:26:46,242 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2022-12-14 11:26:46,242 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:26:46,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021595531] [2022-12-14 11:26:46,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021595531] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:26:46,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:26:46,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:26:46,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014255666] [2022-12-14 11:26:46,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:26:46,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:26:46,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:26:46,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:26:46,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:26:46,244 INFO L87 Difference]: Start difference. First operand 14856 states and 20262 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 11:26:49,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:26:51,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:26:51,272 INFO L93 Difference]: Finished difference Result 14892 states and 20296 transitions. [2022-12-14 11:26:51,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:26:51,273 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 230 [2022-12-14 11:26:51,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:26:51,304 INFO L225 Difference]: With dead ends: 14892 [2022-12-14 11:26:51,304 INFO L226 Difference]: Without dead ends: 14890 [2022-12-14 11:26:51,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 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 11:26:51,309 INFO L413 NwaCegarLoop]: 2429 mSDtfsCounter, 1548 mSDsluCounter, 5908 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1550 SdHoareTripleChecker+Valid, 8337 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:26:51,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1550 Valid, 8337 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1044 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 11:26:51,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14890 states. [2022-12-14 11:26:52,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14890 to 14888. [2022-12-14 11:26:52,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14888 states, 8450 states have (on average 1.2215384615384615) internal successors, (10322), 8810 states have internal predecessors, (10322), 4955 states have call successors, (4955), 1497 states have call predecessors, (4955), 1481 states have return successors, (4995), 4844 states have call predecessors, (4995), 4955 states have call successors, (4995) [2022-12-14 11:26:52,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14888 states to 14888 states and 20272 transitions. [2022-12-14 11:26:52,327 INFO L78 Accepts]: Start accepts. Automaton has 14888 states and 20272 transitions. Word has length 230 [2022-12-14 11:26:52,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:26:52,327 INFO L495 AbstractCegarLoop]: Abstraction has 14888 states and 20272 transitions. [2022-12-14 11:26:52,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 11:26:52,327 INFO L276 IsEmpty]: Start isEmpty. Operand 14888 states and 20272 transitions. [2022-12-14 11:26:52,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-12-14 11:26:52,330 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:26:52,330 INFO L195 NwaCegarLoop]: trace histogram [15, 10, 10, 8, 8, 8, 8, 8, 8, 3, 3, 3, 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] [2022-12-14 11:26:52,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 11:26:52,330 INFO L420 AbstractCegarLoop]: === Iteration 20 === 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 11:26:52,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:26:52,330 INFO L85 PathProgramCache]: Analyzing trace with hash 122017555, now seen corresponding path program 1 times [2022-12-14 11:26:52,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:26:52,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266670041] [2022-12-14 11:26:52,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:26:52,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:26:52,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:26:52,505 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2022-12-14 11:26:52,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:26:52,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266670041] [2022-12-14 11:26:52,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266670041] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:26:52,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:26:52,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:26:52,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882143909] [2022-12-14 11:26:52,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:26:52,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:26:52,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:26:52,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:26:52,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:26:52,508 INFO L87 Difference]: Start difference. First operand 14888 states and 20272 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 11:26:56,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:26:56,357 INFO L93 Difference]: Finished difference Result 29730 states and 40564 transitions. [2022-12-14 11:26:56,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:26:56,358 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 260 [2022-12-14 11:26:56,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:26:56,401 INFO L225 Difference]: With dead ends: 29730 [2022-12-14 11:26:56,401 INFO L226 Difference]: Without dead ends: 14912 [2022-12-14 11:26:56,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:26:56,436 INFO L413 NwaCegarLoop]: 2409 mSDtfsCounter, 5 mSDsluCounter, 4812 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 7221 SdHoareTripleChecker+Invalid, 947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-14 11:26:56,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 7221 Invalid, 947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-14 11:26:56,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14912 states. [2022-12-14 11:26:57,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14912 to 14908. [2022-12-14 11:26:57,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14908 states, 8466 states have (on average 1.221119773210489) internal successors, (10338), 8830 states have internal predecessors, (10338), 4955 states have call successors, (4955), 1497 states have call predecessors, (4955), 1485 states have return successors, (4999), 4844 states have call predecessors, (4999), 4955 states have call successors, (4999) [2022-12-14 11:26:57,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14908 states to 14908 states and 20292 transitions. [2022-12-14 11:26:57,506 INFO L78 Accepts]: Start accepts. Automaton has 14908 states and 20292 transitions. Word has length 260 [2022-12-14 11:26:57,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:26:57,507 INFO L495 AbstractCegarLoop]: Abstraction has 14908 states and 20292 transitions. [2022-12-14 11:26:57,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 11:26:57,507 INFO L276 IsEmpty]: Start isEmpty. Operand 14908 states and 20292 transitions. [2022-12-14 11:26:57,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-12-14 11:26:57,509 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:26:57,509 INFO L195 NwaCegarLoop]: trace histogram [16, 9, 9, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 11:26:57,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 11:26:57,509 INFO L420 AbstractCegarLoop]: === Iteration 21 === 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 11:26:57,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:26:57,509 INFO L85 PathProgramCache]: Analyzing trace with hash 302011719, now seen corresponding path program 1 times [2022-12-14 11:26:57,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:26:57,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350521900] [2022-12-14 11:26:57,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:26:57,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:26:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:26:57,833 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked. [2022-12-14 11:26:57,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:26:57,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350521900] [2022-12-14 11:26:57,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350521900] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:26:57,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:26:57,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:26:57,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670485533] [2022-12-14 11:26:57,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:26:57,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:26:57,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:26:57,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:26:57,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:26:57,835 INFO L87 Difference]: Start difference. First operand 14908 states and 20292 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 11:27:02,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:27:02,746 INFO L93 Difference]: Finished difference Result 14910 states and 20293 transitions. [2022-12-14 11:27:02,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:27:02,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 262 [2022-12-14 11:27:02,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:27:02,798 INFO L225 Difference]: With dead ends: 14910 [2022-12-14 11:27:02,798 INFO L226 Difference]: Without dead ends: 14908 [2022-12-14 11:27:02,805 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 11:27:02,806 INFO L413 NwaCegarLoop]: 2414 mSDtfsCounter, 1131 mSDsluCounter, 6205 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 8619 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:27:02,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1132 Valid, 8619 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1202 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 11:27:02,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14908 states. [2022-12-14 11:27:04,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14908 to 14908. [2022-12-14 11:27:04,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14908 states, 8466 states have (on average 1.218521143397118) internal successors, (10316), 8830 states have internal predecessors, (10316), 4955 states have call successors, (4955), 1497 states have call predecessors, (4955), 1485 states have return successors, (4999), 4844 states have call predecessors, (4999), 4955 states have call successors, (4999) [2022-12-14 11:27:04,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14908 states to 14908 states and 20270 transitions. [2022-12-14 11:27:04,131 INFO L78 Accepts]: Start accepts. Automaton has 14908 states and 20270 transitions. Word has length 262 [2022-12-14 11:27:04,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:27:04,131 INFO L495 AbstractCegarLoop]: Abstraction has 14908 states and 20270 transitions. [2022-12-14 11:27:04,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 11:27:04,131 INFO L276 IsEmpty]: Start isEmpty. Operand 14908 states and 20270 transitions. [2022-12-14 11:27:04,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2022-12-14 11:27:04,136 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:27:04,136 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 8, 8, 8, 8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:04,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 11:27:04,136 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 11:27:04,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:27:04,137 INFO L85 PathProgramCache]: Analyzing trace with hash -2113362921, now seen corresponding path program 1 times [2022-12-14 11:27:04,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:27:04,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721765326] [2022-12-14 11:27:04,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:27:04,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:27:04,243 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:27:04,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [359676906] [2022-12-14 11:27:04,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:27:04,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:27:04,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:27:04,245 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:27:04,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 11:27:05,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:27:05,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 4382 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 11:27:05,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:27:05,401 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2022-12-14 11:27:05,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:27:05,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:27:05,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721765326] [2022-12-14 11:27:05,401 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:27:05,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359676906] [2022-12-14 11:27:05,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359676906] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:27:05,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:27:05,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:27:05,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156758054] [2022-12-14 11:27:05,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:27:05,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:27:05,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:27:05,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:27:05,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:27:05,404 INFO L87 Difference]: Start difference. First operand 14908 states and 20270 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-12-14 11:27:08,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:27:08,952 INFO L93 Difference]: Finished difference Result 31688 states and 43582 transitions. [2022-12-14 11:27:08,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:27:08,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 369 [2022-12-14 11:27:08,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:27:09,002 INFO L225 Difference]: With dead ends: 31688 [2022-12-14 11:27:09,002 INFO L226 Difference]: Without dead ends: 16850 [2022-12-14 11:27:09,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 367 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 11:27:09,036 INFO L413 NwaCegarLoop]: 2645 mSDtfsCounter, 163 mSDsluCounter, 2463 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 5108 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:27:09,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 5108 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-14 11:27:09,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16850 states. [2022-12-14 11:27:10,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16850 to 14914. [2022-12-14 11:27:10,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14914 states, 8472 states have (on average 1.2183663833805476) internal successors, (10322), 8836 states have internal predecessors, (10322), 4955 states have call successors, (4955), 1497 states have call predecessors, (4955), 1485 states have return successors, (4999), 4844 states have call predecessors, (4999), 4955 states have call successors, (4999) [2022-12-14 11:27:10,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14914 states to 14914 states and 20276 transitions. [2022-12-14 11:27:10,170 INFO L78 Accepts]: Start accepts. Automaton has 14914 states and 20276 transitions. Word has length 369 [2022-12-14 11:27:10,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:27:10,170 INFO L495 AbstractCegarLoop]: Abstraction has 14914 states and 20276 transitions. [2022-12-14 11:27:10,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-12-14 11:27:10,170 INFO L276 IsEmpty]: Start isEmpty. Operand 14914 states and 20276 transitions. [2022-12-14 11:27:10,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2022-12-14 11:27:10,175 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:27:10,175 INFO L195 NwaCegarLoop]: trace histogram [17, 12, 12, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:10,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 11:27:10,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:27:10,377 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 11:27:10,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:27:10,379 INFO L85 PathProgramCache]: Analyzing trace with hash -774259315, now seen corresponding path program 1 times [2022-12-14 11:27:10,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:27:10,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003323780] [2022-12-14 11:27:10,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:27:10,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:27:10,492 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:27:10,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1923124816] [2022-12-14 11:27:10,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:27:10,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:27:10,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:27:10,494 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:27:10,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 11:27:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:27:11,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 4502 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:27:11,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:27:11,718 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 262 proven. 0 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2022-12-14 11:27:11,718 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:27:11,718 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:27:11,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003323780] [2022-12-14 11:27:11,719 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:27:11,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923124816] [2022-12-14 11:27:11,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923124816] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:27:11,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:27:11,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:27:11,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985436257] [2022-12-14 11:27:11,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:27:11,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:27:11,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:27:11,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:27:11,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:27:11,721 INFO L87 Difference]: Start difference. First operand 14914 states and 20276 transitions. Second operand has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-12-14 11:27:15,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:27:15,589 INFO L93 Difference]: Finished difference Result 29812 states and 40612 transitions. [2022-12-14 11:27:15,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:27:15,589 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 384 [2022-12-14 11:27:15,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:27:15,637 INFO L225 Difference]: With dead ends: 29812 [2022-12-14 11:27:15,637 INFO L226 Difference]: Without dead ends: 14968 [2022-12-14 11:27:15,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 381 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:27:15,671 INFO L413 NwaCegarLoop]: 2415 mSDtfsCounter, 13 mSDsluCounter, 4819 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 7234 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:27:15,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 7234 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 11:27:15,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14968 states. [2022-12-14 11:27:16,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14968 to 14926. [2022-12-14 11:27:16,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14926 states, 8484 states have (on average 1.2180575200377182) internal successors, (10334), 8848 states have internal predecessors, (10334), 4955 states have call successors, (4955), 1497 states have call predecessors, (4955), 1485 states have return successors, (4999), 4844 states have call predecessors, (4999), 4955 states have call successors, (4999) [2022-12-14 11:27:16,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14926 states to 14926 states and 20288 transitions. [2022-12-14 11:27:16,779 INFO L78 Accepts]: Start accepts. Automaton has 14926 states and 20288 transitions. Word has length 384 [2022-12-14 11:27:16,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:27:16,779 INFO L495 AbstractCegarLoop]: Abstraction has 14926 states and 20288 transitions. [2022-12-14 11:27:16,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-12-14 11:27:16,779 INFO L276 IsEmpty]: Start isEmpty. Operand 14926 states and 20288 transitions. [2022-12-14 11:27:16,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2022-12-14 11:27:16,785 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:27:16,785 INFO L195 NwaCegarLoop]: trace histogram [17, 12, 12, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:16,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 11:27:16,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-12-14 11:27:16,987 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 11:27:16,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:27:16,988 INFO L85 PathProgramCache]: Analyzing trace with hash 841071953, now seen corresponding path program 1 times [2022-12-14 11:27:16,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:27:16,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401949110] [2022-12-14 11:27:16,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:27:16,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:27:17,120 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:27:17,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [70486965] [2022-12-14 11:27:17,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:27:17,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:27:17,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:27:17,121 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:27:17,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 11:27:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:27:18,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 4675 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:27:18,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:27:18,273 INFO L134 CoverageAnalysis]: Checked inductivity of 789 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 517 trivial. 0 not checked. [2022-12-14 11:27:18,274 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:27:18,274 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:27:18,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401949110] [2022-12-14 11:27:18,274 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:27:18,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70486965] [2022-12-14 11:27:18,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70486965] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:27:18,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:27:18,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:27:18,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522940682] [2022-12-14 11:27:18,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:27:18,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:27:18,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:27:18,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:27:18,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:27:18,276 INFO L87 Difference]: Start difference. First operand 14926 states and 20288 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-12-14 11:27:22,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:27:22,027 INFO L93 Difference]: Finished difference Result 29842 states and 40648 transitions. [2022-12-14 11:27:22,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:27:22,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 401 [2022-12-14 11:27:22,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:27:22,069 INFO L225 Difference]: With dead ends: 29842 [2022-12-14 11:27:22,069 INFO L226 Difference]: Without dead ends: 14986 [2022-12-14 11:27:22,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:27:22,100 INFO L413 NwaCegarLoop]: 2419 mSDtfsCounter, 13 mSDsluCounter, 4819 mSDsCounter, 0 mSdLazyCounter, 944 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 7238 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:27:22,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 7238 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 944 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-14 11:27:22,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14986 states. [2022-12-14 11:27:23,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14986 to 14938. [2022-12-14 11:27:23,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14938 states, 8496 states have (on average 1.2177495291902072) internal successors, (10346), 8860 states have internal predecessors, (10346), 4955 states have call successors, (4955), 1497 states have call predecessors, (4955), 1485 states have return successors, (4999), 4844 states have call predecessors, (4999), 4955 states have call successors, (4999) [2022-12-14 11:27:23,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14938 states to 14938 states and 20300 transitions. [2022-12-14 11:27:23,210 INFO L78 Accepts]: Start accepts. Automaton has 14938 states and 20300 transitions. Word has length 401 [2022-12-14 11:27:23,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:27:23,210 INFO L495 AbstractCegarLoop]: Abstraction has 14938 states and 20300 transitions. [2022-12-14 11:27:23,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-12-14 11:27:23,211 INFO L276 IsEmpty]: Start isEmpty. Operand 14938 states and 20300 transitions. [2022-12-14 11:27:23,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2022-12-14 11:27:23,217 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:27:23,217 INFO L195 NwaCegarLoop]: trace histogram [17, 12, 12, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:23,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 11:27:23,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:27:23,418 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 11:27:23,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:27:23,420 INFO L85 PathProgramCache]: Analyzing trace with hash -2064134653, now seen corresponding path program 1 times [2022-12-14 11:27:23,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:27:23,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543128012] [2022-12-14 11:27:23,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:27:23,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:27:23,524 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:27:23,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2074417492] [2022-12-14 11:27:23,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:27:23,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:27:23,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:27:23,525 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:27:23,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 11:27:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:27:24,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 5053 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:27:24,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:27:24,780 INFO L134 CoverageAnalysis]: Checked inductivity of 881 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2022-12-14 11:27:24,780 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:27:24,780 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:27:24,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543128012] [2022-12-14 11:27:24,780 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:27:24,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074417492] [2022-12-14 11:27:24,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074417492] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:27:24,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:27:24,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:27:24,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226318246] [2022-12-14 11:27:24,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:27:24,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:27:24,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:27:24,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:27:24,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:27:24,783 INFO L87 Difference]: Start difference. First operand 14938 states and 20300 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-12-14 11:27:28,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:27:28,955 INFO L93 Difference]: Finished difference Result 29872 states and 40684 transitions. [2022-12-14 11:27:28,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:27:28,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 431 [2022-12-14 11:27:28,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:27:28,996 INFO L225 Difference]: With dead ends: 29872 [2022-12-14 11:27:28,996 INFO L226 Difference]: Without dead ends: 15004 [2022-12-14 11:27:29,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:27:29,026 INFO L413 NwaCegarLoop]: 2421 mSDtfsCounter, 13 mSDsluCounter, 4822 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 7243 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:27:29,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 7243 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-12-14 11:27:29,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15004 states. [2022-12-14 11:27:30,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15004 to 14950. [2022-12-14 11:27:30,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14950 states, 8508 states have (on average 1.2174424071462153) internal successors, (10358), 8872 states have internal predecessors, (10358), 4955 states have call successors, (4955), 1497 states have call predecessors, (4955), 1485 states have return successors, (4999), 4844 states have call predecessors, (4999), 4955 states have call successors, (4999) [2022-12-14 11:27:30,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14950 states to 14950 states and 20312 transitions. [2022-12-14 11:27:30,135 INFO L78 Accepts]: Start accepts. Automaton has 14950 states and 20312 transitions. Word has length 431 [2022-12-14 11:27:30,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:27:30,136 INFO L495 AbstractCegarLoop]: Abstraction has 14950 states and 20312 transitions. [2022-12-14 11:27:30,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-12-14 11:27:30,136 INFO L276 IsEmpty]: Start isEmpty. Operand 14950 states and 20312 transitions. [2022-12-14 11:27:30,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2022-12-14 11:27:30,142 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:27:30,143 INFO L195 NwaCegarLoop]: trace histogram [17, 12, 12, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:30,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 11:27:30,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:27:30,344 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 11:27:30,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:27:30,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1074024239, now seen corresponding path program 1 times [2022-12-14 11:27:30,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:27:30,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318631492] [2022-12-14 11:27:30,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:27:30,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:27:30,515 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:27:30,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1354061715] [2022-12-14 11:27:30,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:27:30,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:27:30,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:27:30,517 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:27:30,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 11:27:31,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:27:31,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 5108 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:27:31,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:27:31,502 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2022-12-14 11:27:31,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:27:31,503 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:27:31,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318631492] [2022-12-14 11:27:31,503 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:27:31,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354061715] [2022-12-14 11:27:31,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354061715] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:27:31,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:27:31,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:27:31,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103193946] [2022-12-14 11:27:31,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:27:31,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:27:31,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:27:31,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:27:31,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:27:31,505 INFO L87 Difference]: Start difference. First operand 14950 states and 20312 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-12-14 11:27:35,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:27:35,455 INFO L93 Difference]: Finished difference Result 29902 states and 40716 transitions. [2022-12-14 11:27:35,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:27:35,456 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 436 [2022-12-14 11:27:35,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:27:35,493 INFO L225 Difference]: With dead ends: 29902 [2022-12-14 11:27:35,493 INFO L226 Difference]: Without dead ends: 15022 [2022-12-14 11:27:35,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:27:35,521 INFO L413 NwaCegarLoop]: 2423 mSDtfsCounter, 13 mSDsluCounter, 4825 mSDsCounter, 0 mSdLazyCounter, 944 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 7248 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-14 11:27:35,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 7248 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 944 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-14 11:27:35,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15022 states. [2022-12-14 11:27:36,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15022 to 14962. [2022-12-14 11:27:36,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14962 states, 8520 states have (on average 1.2171361502347418) internal successors, (10370), 8884 states have internal predecessors, (10370), 4955 states have call successors, (4955), 1497 states have call predecessors, (4955), 1485 states have return successors, (4999), 4844 states have call predecessors, (4999), 4955 states have call successors, (4999) [2022-12-14 11:27:36,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14962 states to 14962 states and 20324 transitions. [2022-12-14 11:27:36,657 INFO L78 Accepts]: Start accepts. Automaton has 14962 states and 20324 transitions. Word has length 436 [2022-12-14 11:27:36,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:27:36,658 INFO L495 AbstractCegarLoop]: Abstraction has 14962 states and 20324 transitions. [2022-12-14 11:27:36,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-12-14 11:27:36,658 INFO L276 IsEmpty]: Start isEmpty. Operand 14962 states and 20324 transitions. [2022-12-14 11:27:36,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2022-12-14 11:27:36,664 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:27:36,665 INFO L195 NwaCegarLoop]: trace histogram [17, 12, 12, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:36,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 11:27:36,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-12-14 11:27:36,867 INFO L420 AbstractCegarLoop]: === Iteration 27 === 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 11:27:36,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:27:36,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1156571003, now seen corresponding path program 1 times [2022-12-14 11:27:36,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:27:36,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861925601] [2022-12-14 11:27:36,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:27:36,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:27:37,000 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:27:37,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [61690254] [2022-12-14 11:27:37,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:27:37,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:27:37,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:27:37,001 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:27:37,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f245915-bfa8-4f5c-bd70-1b29218de6cd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 11:27:37,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:27:38,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 5110 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:27:38,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:27:38,030 INFO L134 CoverageAnalysis]: Checked inductivity of 886 backedges. 170 proven. 1 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2022-12-14 11:27:38,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:27:38,413 INFO L134 CoverageAnalysis]: Checked inductivity of 886 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 871 trivial. 0 not checked. [2022-12-14 11:27:38,413 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:27:38,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861925601] [2022-12-14 11:27:38,413 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:27:38,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61690254] [2022-12-14 11:27:38,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61690254] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:27:38,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [895522091] [2022-12-14 11:27:38,432 INFO L159 IcfgInterpreter]: Started Sifa with 237 locations of interest [2022-12-14 11:27:38,432 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:27:38,435 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:27:38,439 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:27:38,439 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:30:39,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 11:30:39,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 11:30:39,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 11:30:39,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 11:30:39,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 11:30:39,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 11:30:57,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 11:30:57,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 11:30:58,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 11:30:58,069 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 11:30:59,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 11:30:59,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 11:30:59,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 11:30:59,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 11:32:11,651 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_filter_positive_int with input of size 192 for LOIs [2022-12-14 11:32:11,921 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_xmalloc with input of size 326 for LOIs [2022-12-14 11:32:12,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 11:32:12,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 11:32:20,680 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_is_err with input of size 344 for LOIs [2022-12-14 11:32:20,815 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 337 for LOIs [2022-12-14 11:32:22,991 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_undef_int with input of size 333 for LOIs [2022-12-14 11:32:23,114 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_assume with input of size 321 for LOIs [2022-12-14 11:32:23,335 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:32:51,448 WARN L233 SmtUtils]: Spent 27.97s on a formula simplification that was a NOOP. DAG size: 2411 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:33:17,077 WARN L233 SmtUtils]: Spent 13.59s on a formula simplification that was a NOOP. DAG size: 1651 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:33:30,912 WARN L233 SmtUtils]: Spent 13.47s on a formula simplification that was a NOOP. DAG size: 1647 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:33:44,601 WARN L233 SmtUtils]: Spent 13.30s on a formula simplification that was a NOOP. DAG size: 1651 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:33:58,421 WARN L233 SmtUtils]: Spent 13.39s on a formula simplification that was a NOOP. DAG size: 1651 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:34:12,996 WARN L233 SmtUtils]: Spent 14.10s on a formula simplification that was a NOOP. DAG size: 1651 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:34:27,969 WARN L233 SmtUtils]: Spent 14.45s on a formula simplification that was a NOOP. DAG size: 1651 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:34:42,740 WARN L233 SmtUtils]: Spent 14.22s on a formula simplification that was a NOOP. DAG size: 1651 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:34:56,360 WARN L233 SmtUtils]: Spent 13.02s on a formula simplification that was a NOOP. DAG size: 1651 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:35:10,328 WARN L233 SmtUtils]: Spent 13.32s on a formula simplification that was a NOOP. DAG size: 1651 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:35:43,041 WARN L233 SmtUtils]: Spent 5.19s on a formula simplification. DAG size of input: 599 DAG size of output: 362 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:35:54,364 WARN L233 SmtUtils]: Spent 5.61s on a formula simplification. DAG size of input: 608 DAG size of output: 348 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:36:48,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [895522091] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:36:48,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 11:36:48,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [69] imperfect sequences [4, 4] total 74 [2022-12-14 11:36:48,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865620111] [2022-12-14 11:36:48,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:36:48,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-12-14 11:36:48,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:36:48,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-12-14 11:36:48,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=493, Invalid=4909, Unknown=0, NotChecked=0, Total=5402 [2022-12-14 11:36:48,261 INFO L87 Difference]: Start difference. First operand 14962 states and 20324 transitions. Second operand has 70 states, 51 states have (on average 3.156862745098039) internal successors, (161), 43 states have internal predecessors, (161), 18 states have call successors, (56), 7 states have call predecessors, (56), 7 states have return successors, (55), 24 states have call predecessors, (55), 18 states have call successors, (55) [2022-12-14 11:37:48,050 WARN L233 SmtUtils]: Spent 59.03s on a formula simplification. DAG size of input: 2420 DAG size of output: 2416 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)