./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ef4c15-49ac-4c62-ad5e-ae35a1542325/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ef4c15-49ac-4c62-ad5e-ae35a1542325/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ef4c15-49ac-4c62-ad5e-ae35a1542325/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ef4c15-49ac-4c62-ad5e-ae35a1542325/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ef4c15-49ac-4c62-ad5e-ae35a1542325/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ef4c15-49ac-4c62-ad5e-ae35a1542325/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bf04605b927a140287b1c754ad26365df4778b673325ded7dfdba05deed83fbc --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:02:08,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:02:08,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:02:08,055 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:02:08,055 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:02:08,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:02:08,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:02:08,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:02:08,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:02:08,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:02:08,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:02:08,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:02:08,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:02:08,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:02:08,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:02:08,068 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:02:08,069 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:02:08,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:02:08,072 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:02:08,074 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:02:08,075 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:02:08,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:02:08,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:02:08,079 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:02:08,082 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:02:08,083 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:02:08,083 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:02:08,084 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:02:08,085 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:02:08,086 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:02:08,086 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:02:08,087 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:02:08,088 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:02:08,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:02:08,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:02:08,090 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:02:08,091 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:02:08,091 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:02:08,092 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:02:08,093 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:02:08,094 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:02:08,095 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ef4c15-49ac-4c62-ad5e-ae35a1542325/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 00:02:08,119 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:02:08,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:02:08,120 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:02:08,120 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:02:08,121 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:02:08,121 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:02:08,121 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:02:08,122 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:02:08,122 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:02:08,122 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:02:08,122 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:02:08,122 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:02:08,123 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:02:08,123 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:02:08,123 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:02:08,123 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:02:08,123 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:02:08,124 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:02:08,124 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:02:08,125 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:02:08,125 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:02:08,125 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:02:08,125 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:02:08,125 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:02:08,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:02:08,126 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:02:08,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:02:08,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:02:08,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:02:08,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:02:08,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:02:08,127 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:02:08,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:02:08,128 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:02:08,128 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:02:08,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:02:08,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:02:08,128 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:02:08,129 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_40ef4c15-49ac-4c62-ad5e-ae35a1542325/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ef4c15-49ac-4c62-ad5e-ae35a1542325/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf04605b927a140287b1c754ad26365df4778b673325ded7dfdba05deed83fbc [2022-11-26 00:02:08,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:02:08,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:02:08,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:02:08,384 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:02:08,384 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:02:08,386 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ef4c15-49ac-4c62-ad5e-ae35a1542325/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2022-11-26 00:02:11,464 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:02:12,226 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:02:12,227 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ef4c15-49ac-4c62-ad5e-ae35a1542325/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2022-11-26 00:02:12,294 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ef4c15-49ac-4c62-ad5e-ae35a1542325/bin/utaipan-ByfvJB40ur/data/0a460c165/664cf6f0e48e414c86e13a3c4e5d3913/FLAG35b5c9e25 [2022-11-26 00:02:12,318 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ef4c15-49ac-4c62-ad5e-ae35a1542325/bin/utaipan-ByfvJB40ur/data/0a460c165/664cf6f0e48e414c86e13a3c4e5d3913 [2022-11-26 00:02:12,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:02:12,325 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:02:12,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:02:12,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:02:12,331 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:02:12,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:12" (1/1) ... [2022-11-26 00:02:12,334 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c8434ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:12, skipping insertion in model container [2022-11-26 00:02:12,334 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:12" (1/1) ... [2022-11-26 00:02:12,344 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:02:12,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:02:13,533 WARN L623 FunctionHandler]: Unknown extern function __local_bh_disable_ip [2022-11-26 00:02:13,546 WARN L623 FunctionHandler]: Unknown extern function __local_bh_enable_ip [2022-11-26 00:02:13,581 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-26 00:02:13,597 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-26 00:02:13,612 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-26 00:02:13,745 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:13,815 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:02:13,820 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:02:13,821 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-26 00:02:13,829 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-26 00:02:13,837 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_cpu [2022-11-26 00:02:13,844 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_device [2022-11-26 00:02:13,870 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-26 00:02:13,877 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:02:13,879 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-26 00:02:13,906 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-26 00:02:13,948 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-26 00:02:13,950 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:02:14,015 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-26 00:02:14,016 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-26 00:02:14,027 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:02:14,028 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,058 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-11-26 00:02:14,100 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:02:14,101 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:02:14,102 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:02:14,103 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:02:14,104 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-11-26 00:02:14,199 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-11-26 00:02:14,260 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-26 00:02:14,626 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:02:14,629 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:14,629 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:14,631 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:14,638 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:02:14,643 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:02:14,646 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:02:14,647 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:14,648 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:14,650 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:02:14,651 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:14,652 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:14,665 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-11-26 00:02:14,666 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-11-26 00:02:14,672 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-11-26 00:02:14,684 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-11-26 00:02:14,690 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:02:14,692 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:02:14,694 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:02:14,702 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-11-26 00:02:14,720 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-11-26 00:02:14,736 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:02:14,749 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:02:14,750 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:02:14,751 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:02:14,756 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:02:14,757 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:02:14,764 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:02:14,765 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:02:14,767 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:02:14,767 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:02:14,768 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,769 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,771 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:02:14,839 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:02:14,839 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:02:14,840 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:02:14,841 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:02:14,849 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:02:14,850 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:02:14,851 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:02:14,853 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:02:14,854 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-26 00:02:14,854 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-11-26 00:02:14,868 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:02:14,870 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:02:14,872 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:02:14,881 WARN L623 FunctionHandler]: Unknown extern function __napi_complete [2022-11-26 00:02:14,894 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-11-26 00:02:14,896 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-26 00:02:14,896 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-26 00:02:14,897 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-26 00:02:14,898 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,898 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-26 00:02:14,899 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,900 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,900 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-11-26 00:02:14,901 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,901 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-26 00:02:14,905 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,906 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,907 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,911 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,913 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,915 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,917 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,918 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,919 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,920 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,921 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,922 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,922 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,922 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,923 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,923 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,924 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,924 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,925 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,925 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,926 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,927 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,928 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,928 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:02:14,931 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-11-26 00:02:14,935 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,935 WARN L623 FunctionHandler]: Unknown extern function probe_irq_on [2022-11-26 00:02:14,936 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:02:14,936 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:02:14,937 WARN L623 FunctionHandler]: Unknown extern function probe_irq_off [2022-11-26 00:02:14,937 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,938 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,940 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,941 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-26 00:02:14,943 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,944 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-26 00:02:14,947 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:02:14,948 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:02:14,950 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:14,951 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:14,951 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:14,952 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:14,955 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:02:14,960 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:02:14,969 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-11-26 00:02:14,971 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-11-26 00:02:14,972 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:02:14,981 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:02:14,988 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:02:14,993 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:02:14,996 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:14,997 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:15,001 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:15,004 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:15,006 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:15,011 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:02:15,019 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:02:15,024 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:02:15,026 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-11-26 00:02:15,027 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:02:15,030 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:02:15,035 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-26 00:02:15,038 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:02:15,045 WARN L623 FunctionHandler]: Unknown extern function generic_mii_ioctl [2022-11-26 00:02:15,052 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-11-26 00:02:15,053 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:02:15,060 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-11-26 00:02:15,061 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:02:15,062 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:02:15,062 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-26 00:02:15,064 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-11-26 00:02:15,064 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:02:15,069 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:02:15,070 WARN L623 FunctionHandler]: Unknown extern function round_jiffies [2022-11-26 00:02:15,075 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-26 00:02:15,076 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-11-26 00:02:15,076 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-11-26 00:02:15,076 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-11-26 00:02:15,081 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-11-26 00:02:15,082 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-11-26 00:02:15,082 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-26 00:02:15,088 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-26 00:02:15,088 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-26 00:02:15,097 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:15,100 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:15,106 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-26 00:02:15,539 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:15,539 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:15,539 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:15,540 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:15,540 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:15,540 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:15,540 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:15,541 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:15,541 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:15,541 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:15,541 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:15,542 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:15,542 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:15,547 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-26 00:02:15,550 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-26 00:02:15,552 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-26 00:02:15,555 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-26 00:02:15,569 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 00:02:15,571 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 00:02:15,588 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-26 00:02:15,590 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-26 00:02:15,603 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 00:02:15,605 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 00:02:15,606 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:15,607 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:15,607 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:15,608 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:15,608 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:15,609 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:15,615 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:15,616 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:15,617 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:15,617 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:15,617 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:15,618 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:15,618 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:15,618 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:15,619 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-26 00:02:15,620 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-26 00:02:15,620 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:02:15,621 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:15,622 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-26 00:02:15,623 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-26 00:02:15,623 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:15,625 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:15,627 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-11-26 00:02:15,628 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:15,628 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-26 00:02:15,629 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:15,629 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:15,629 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:15,630 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:15,630 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:15,631 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-26 00:02:15,631 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-26 00:02:15,632 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:02:15,632 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-26 00:02:15,633 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-26 00:02:15,633 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:02:15,633 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-26 00:02:15,687 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-26 00:02:15,688 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 00:02:15,698 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:02:16,304 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_40ef4c15-49ac-4c62-ad5e-ae35a1542325/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422318,422331] [2022-11-26 00:02:16,308 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_40ef4c15-49ac-4c62-ad5e-ae35a1542325/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422487,422500] [2022-11-26 00:02:16,309 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_40ef4c15-49ac-4c62-ad5e-ae35a1542325/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422654,422667] [2022-11-26 00:02:16,310 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_40ef4c15-49ac-4c62-ad5e-ae35a1542325/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422822,422835] [2022-11-26 00:02:16,312 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:16,312 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:16,318 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:16,319 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:16,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:02:16,472 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:02:16,578 WARN L623 FunctionHandler]: Unknown extern function __local_bh_disable_ip [2022-11-26 00:02:16,578 WARN L623 FunctionHandler]: Unknown extern function __local_bh_enable_ip [2022-11-26 00:02:16,579 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-26 00:02:16,579 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-26 00:02:16,580 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-26 00:02:16,582 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:16,586 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:02:16,588 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:02:16,588 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-26 00:02:16,590 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-26 00:02:16,592 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_cpu [2022-11-26 00:02:16,593 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_device [2022-11-26 00:02:16,595 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-26 00:02:16,596 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:02:16,598 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-26 00:02:16,600 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-26 00:02:16,602 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-26 00:02:16,602 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:02:16,608 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-26 00:02:16,608 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-26 00:02:16,609 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:02:16,610 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,611 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-11-26 00:02:16,614 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:02:16,616 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:02:16,620 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:02:16,621 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:02:16,621 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-11-26 00:02:16,622 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-11-26 00:02:16,626 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-26 00:02:16,649 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:02:16,651 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:16,651 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:16,652 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:16,656 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:02:16,669 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:02:16,670 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:02:16,671 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:16,671 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:16,673 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:02:16,673 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:16,673 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:16,676 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-11-26 00:02:16,676 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-11-26 00:02:16,677 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-11-26 00:02:16,678 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-11-26 00:02:16,679 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:02:16,679 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:02:16,680 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:02:16,683 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-11-26 00:02:16,685 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-11-26 00:02:16,688 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:02:16,690 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:02:16,690 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:02:16,691 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:02:16,694 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:02:16,695 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:02:16,700 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:02:16,700 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:02:16,701 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:02:16,702 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:02:16,703 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,703 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,704 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:02:16,711 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:02:16,711 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:02:16,711 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:02:16,712 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:02:16,714 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:02:16,715 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:02:16,716 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:02:16,717 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:02:16,718 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-26 00:02:16,722 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-11-26 00:02:16,725 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:02:16,726 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:02:16,728 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:02:16,731 WARN L623 FunctionHandler]: Unknown extern function __napi_complete [2022-11-26 00:02:16,739 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-11-26 00:02:16,740 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-26 00:02:16,740 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-26 00:02:16,741 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-26 00:02:16,741 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,742 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-26 00:02:16,742 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,743 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,743 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-11-26 00:02:16,743 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,744 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-26 00:02:16,747 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,750 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,751 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,753 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,756 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,760 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,762 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,762 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,763 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,765 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,766 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,766 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,766 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,767 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,768 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,769 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,769 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,769 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,770 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,771 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,771 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,772 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,773 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,774 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:02:16,776 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-11-26 00:02:16,779 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,779 WARN L623 FunctionHandler]: Unknown extern function probe_irq_on [2022-11-26 00:02:16,780 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:02:16,780 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:02:16,781 WARN L623 FunctionHandler]: Unknown extern function probe_irq_off [2022-11-26 00:02:16,781 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,781 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,788 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,789 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-26 00:02:16,790 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,792 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-26 00:02:16,800 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:02:16,801 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:02:16,803 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:16,804 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:16,804 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:16,804 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:16,807 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:02:16,814 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:02:16,897 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-11-26 00:02:16,898 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-11-26 00:02:16,899 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:02:16,902 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:02:16,906 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:02:16,912 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:02:16,914 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,915 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,916 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,918 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,920 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,922 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:02:16,927 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:02:16,929 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:02:16,930 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-11-26 00:02:16,931 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:02:16,933 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:02:16,937 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-26 00:02:16,940 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:02:16,945 WARN L623 FunctionHandler]: Unknown extern function generic_mii_ioctl [2022-11-26 00:02:16,947 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-11-26 00:02:16,948 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:02:16,950 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-11-26 00:02:16,951 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:02:16,951 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:02:16,952 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-26 00:02:16,953 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-11-26 00:02:16,954 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:02:16,962 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:02:16,963 WARN L623 FunctionHandler]: Unknown extern function round_jiffies [2022-11-26 00:02:16,964 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-26 00:02:16,964 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-11-26 00:02:16,964 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-11-26 00:02:16,965 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-11-26 00:02:16,965 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-11-26 00:02:16,966 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-11-26 00:02:16,966 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-26 00:02:16,967 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-26 00:02:16,967 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-26 00:02:16,969 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,970 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:02:16,972 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-26 00:02:16,982 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:16,983 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:16,983 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:16,984 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:16,984 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:16,984 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:16,985 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:16,985 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:16,985 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:16,985 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:16,986 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:16,986 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:16,986 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:16,991 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-26 00:02:16,992 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-26 00:02:16,993 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-26 00:02:16,995 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-26 00:02:16,998 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 00:02:16,999 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 00:02:17,007 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-26 00:02:17,009 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-26 00:02:17,033 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 00:02:17,034 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 00:02:17,042 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:17,043 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:17,043 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:17,044 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:17,044 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:17,044 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:17,044 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:17,045 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:17,045 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:17,045 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:17,046 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:17,046 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:17,046 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:17,047 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:17,047 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-26 00:02:17,048 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-26 00:02:17,048 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:02:17,049 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:17,050 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-26 00:02:17,050 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-26 00:02:17,051 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:17,051 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:17,052 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-11-26 00:02:17,052 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:17,052 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-26 00:02:17,053 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:17,053 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:17,054 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:17,054 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:17,054 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:02:17,055 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-26 00:02:17,055 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-26 00:02:17,056 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:02:17,058 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-26 00:02:17,058 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-26 00:02:17,059 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:02:17,059 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-26 00:02:17,062 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-26 00:02:17,063 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 00:02:17,063 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:02:17,094 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_40ef4c15-49ac-4c62-ad5e-ae35a1542325/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422318,422331] [2022-11-26 00:02:17,094 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_40ef4c15-49ac-4c62-ad5e-ae35a1542325/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422487,422500] [2022-11-26 00:02:17,095 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_40ef4c15-49ac-4c62-ad5e-ae35a1542325/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422654,422667] [2022-11-26 00:02:17,095 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_40ef4c15-49ac-4c62-ad5e-ae35a1542325/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422822,422835] [2022-11-26 00:02:17,096 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:17,101 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:17,103 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:17,104 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:02:17,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:02:17,444 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:02:17,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:17 WrapperNode [2022-11-26 00:02:17,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:02:17,445 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:02:17,446 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:02:17,446 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:02:17,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:17" (1/1) ... [2022-11-26 00:02:17,587 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:17" (1/1) ... [2022-11-26 00:02:17,827 INFO L138 Inliner]: procedures = 559, calls = 2899, calls flagged for inlining = 295, calls inlined = 261, statements flattened = 7389 [2022-11-26 00:02:17,828 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:02:17,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:02:17,829 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:02:17,829 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:02:17,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:17" (1/1) ... [2022-11-26 00:02:17,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:17" (1/1) ... [2022-11-26 00:02:17,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:17" (1/1) ... [2022-11-26 00:02:17,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:17" (1/1) ... [2022-11-26 00:02:18,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:17" (1/1) ... [2022-11-26 00:02:18,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:17" (1/1) ... [2022-11-26 00:02:18,144 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:17" (1/1) ... [2022-11-26 00:02:18,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:17" (1/1) ... [2022-11-26 00:02:18,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:02:18,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:02:18,201 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:02:18,201 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:02:18,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:17" (1/1) ... [2022-11-26 00:02:18,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:02:18,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ef4c15-49ac-4c62-ad5e-ae35a1542325/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:02:18,231 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ef4c15-49ac-4c62-ad5e-ae35a1542325/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:02:18,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ef4c15-49ac-4c62-ad5e-ae35a1542325/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:02:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-11-26 00:02:18,276 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-11-26 00:02:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-26 00:02:18,276 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-26 00:02:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-26 00:02:18,276 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-26 00:02:18,277 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-26 00:02:18,277 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-26 00:02:18,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-26 00:02:18,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-26 00:02:18,277 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-26 00:02:18,277 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-26 00:02:18,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-26 00:02:18,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-26 00:02:18,277 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-26 00:02:18,277 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-26 00:02:18,278 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-26 00:02:18,278 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-26 00:02:18,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_63 [2022-11-26 00:02:18,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_63 [2022-11-26 00:02:18,278 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_interrupt [2022-11-26 00:02:18,278 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_interrupt [2022-11-26 00:02:18,278 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-26 00:02:18,278 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-26 00:02:18,278 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-26 00:02:18,278 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-26 00:02:18,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-26 00:02:18,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-26 00:02:18,279 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-26 00:02:18,279 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-26 00:02:18,279 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-26 00:02:18,279 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-26 00:02:18,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-26 00:02:18,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-26 00:02:18,279 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-26 00:02:18,279 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-26 00:02:18,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:02:18,280 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_bcr [2022-11-26 00:02:18,280 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_bcr [2022-11-26 00:02:18,280 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-26 00:02:18,280 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-26 00:02:18,280 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-26 00:02:18,280 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-26 00:02:18,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-26 00:02:18,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pcnet32_cleanup_module_16_2 [2022-11-26 00:02:18,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pcnet32_cleanup_module_16_2 [2022-11-26 00:02:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-26 00:02:18,281 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-26 00:02:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-26 00:02:18,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-26 00:02:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-26 00:02:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-26 00:02:18,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-26 00:02:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_tx_ring [2022-11-26 00:02:18,281 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_tx_ring [2022-11-26 00:02:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:02:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-26 00:02:18,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-26 00:02:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-26 00:02:18,283 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-26 00:02:18,283 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_bcr [2022-11-26 00:02:18,283 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_bcr [2022-11-26 00:02:18,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-26 00:02:18,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-26 00:02:18,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-26 00:02:18,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-26 00:02:18,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-26 00:02:18,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-26 00:02:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-26 00:02:18,284 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-26 00:02:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-26 00:02:18,284 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-26 00:02:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_start [2022-11-26 00:02:18,284 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_start [2022-11-26 00:02:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-26 00:02:18,284 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-26 00:02:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~~u16~0 [2022-11-26 00:02:18,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~~u16~0 [2022-11-26 00:02:18,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-26 00:02:18,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-26 00:02:18,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:02:18,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-26 00:02:18,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-26 00:02:18,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-26 00:02:18,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-26 00:02:18,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-11-26 00:02:18,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-11-26 00:02:18,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-26 00:02:18,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-26 00:02:18,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-26 00:02:18,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-26 00:02:18,286 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_open [2022-11-26 00:02:18,286 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_open [2022-11-26 00:02:18,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:02:18,286 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-26 00:02:18,286 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-26 00:02:18,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-26 00:02:18,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-26 00:02:18,287 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-26 00:02:18,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-26 00:02:18,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:02:18,287 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-26 00:02:18,287 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-26 00:02:18,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-26 00:02:18,287 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_reset [2022-11-26 00:02:18,287 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_reset [2022-11-26 00:02:18,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_pcnet32_private [2022-11-26 00:02:18,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_pcnet32_private [2022-11-26 00:02:18,288 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-26 00:02:18,288 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-26 00:02:18,288 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_restart [2022-11-26 00:02:18,288 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_restart [2022-11-26 00:02:18,288 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-26 00:02:18,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-26 00:02:18,288 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-11-26 00:02:18,288 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-11-26 00:02:18,289 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-26 00:02:18,289 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-26 00:02:18,289 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-26 00:02:18,289 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-26 00:02:18,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-26 00:02:18,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-26 00:02:18,290 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_csr [2022-11-26 00:02:18,290 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_csr [2022-11-26 00:02:18,290 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-11-26 00:02:18,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-11-26 00:02:18,290 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-26 00:02:18,290 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-26 00:02:18,290 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_reset [2022-11-26 00:02:18,290 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_reset [2022-11-26 00:02:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-26 00:02:18,291 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-26 00:02:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:02:18,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:02:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-26 00:02:18,291 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-26 00:02:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-26 00:02:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-26 00:02:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-26 00:02:18,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-26 00:02:18,292 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_pm_resume [2022-11-26 00:02:18,292 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_pm_resume [2022-11-26 00:02:18,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-26 00:02:18,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-26 00:02:18,292 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_check_media [2022-11-26 00:02:18,292 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_check_media [2022-11-26 00:02:18,292 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_get_regs_len [2022-11-26 00:02:18,292 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_get_regs_len [2022-11-26 00:02:18,292 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-26 00:02:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-26 00:02:18,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-26 00:02:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_poll_controller [2022-11-26 00:02:18,293 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_poll_controller [2022-11-26 00:02:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_free_ring [2022-11-26 00:02:18,293 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_free_ring [2022-11-26 00:02:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-26 00:02:18,293 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-26 00:02:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-26 00:02:18,293 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-26 00:02:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-26 00:02:18,294 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-26 00:02:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-26 00:02:18,294 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-26 00:02:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-26 00:02:18,294 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-26 00:02:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_gset [2022-11-26 00:02:18,294 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_gset [2022-11-26 00:02:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_rx_ring [2022-11-26 00:02:18,294 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_rx_ring [2022-11-26 00:02:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_csr [2022-11-26 00:02:18,295 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_csr [2022-11-26 00:02:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_tx_timeout [2022-11-26 00:02:18,295 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_tx_timeout [2022-11-26 00:02:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-26 00:02:18,295 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-26 00:02:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:02:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_stop [2022-11-26 00:02:18,295 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_stop [2022-11-26 00:02:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-26 00:02:18,296 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-26 00:02:18,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:02:18,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_pcnet32_private [2022-11-26 00:02:18,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_pcnet32_private [2022-11-26 00:02:18,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:02:18,296 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_csr [2022-11-26 00:02:18,296 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_csr [2022-11-26 00:02:18,296 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_set_multicast_list [2022-11-26 00:02:18,296 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_set_multicast_list [2022-11-26 00:02:18,296 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-11-26 00:02:18,296 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-11-26 00:02:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-26 00:02:18,297 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-26 00:02:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure mii_link_ok [2022-11-26 00:02:18,297 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_link_ok [2022-11-26 00:02:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-26 00:02:18,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-26 00:02:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_probe1 [2022-11-26 00:02:18,297 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_probe1 [2022-11-26 00:02:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-26 00:02:18,297 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-26 00:02:18,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-26 00:02:18,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-26 00:02:18,298 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_remove_one [2022-11-26 00:02:18,298 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_remove_one [2022-11-26 00:02:18,298 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_sset [2022-11-26 00:02:18,298 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_sset [2022-11-26 00:02:18,298 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~~u16~0~TO~VOID [2022-11-26 00:02:18,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~~u16~0~TO~VOID [2022-11-26 00:02:18,298 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_bcr [2022-11-26 00:02:18,299 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_bcr [2022-11-26 00:02:18,299 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-26 00:02:18,299 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-26 00:02:18,299 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-26 00:02:18,299 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-26 00:02:18,299 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-26 00:02:18,299 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-26 00:02:18,299 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_bcr [2022-11-26 00:02:18,299 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_bcr [2022-11-26 00:02:18,299 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-26 00:02:18,300 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-26 00:02:18,300 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_init_ring [2022-11-26 00:02:18,300 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_init_ring [2022-11-26 00:02:18,300 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_close [2022-11-26 00:02:18,300 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_close [2022-11-26 00:02:18,300 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-26 00:02:18,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-26 00:02:18,300 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-26 00:02:18,300 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-26 00:02:18,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:02:18,301 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_suspend [2022-11-26 00:02:18,301 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_suspend [2022-11-26 00:02:18,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-26 00:02:18,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-26 00:02:18,301 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-26 00:02:18,301 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-26 00:02:18,301 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-26 00:02:18,301 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-26 00:02:18,301 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_csr [2022-11-26 00:02:18,301 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_csr [2022-11-26 00:02:18,302 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_load_multicast [2022-11-26 00:02:18,302 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_load_multicast [2022-11-26 00:02:18,302 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-26 00:02:18,302 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-26 00:02:18,302 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_nway_reset [2022-11-26 00:02:18,302 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_nway_reset [2022-11-26 00:02:18,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-26 00:02:18,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-26 00:02:18,302 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-26 00:02:18,302 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-26 00:02:18,303 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-26 00:02:18,303 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-26 00:02:18,303 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-26 00:02:18,303 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-26 00:02:18,303 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-26 00:02:18,303 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-26 00:02:18,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:02:18,303 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-11-26 00:02:18,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-11-26 00:02:18,303 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-11-26 00:02:18,304 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-11-26 00:02:18,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-26 00:02:18,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-26 00:02:18,304 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-26 00:02:18,304 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-26 00:02:19,431 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:02:19,438 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:02:19,849 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-26 00:02:29,371 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-26 00:02:29,550 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:02:31,799 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:02:31,799 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-26 00:02:31,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:31 BoogieIcfgContainer [2022-11-26 00:02:31,808 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:02:31,814 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:02:31,814 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:02:31,818 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:02:31,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:02:12" (1/3) ... [2022-11-26 00:02:31,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b1ad4c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:31, skipping insertion in model container [2022-11-26 00:02:31,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:17" (2/3) ... [2022-11-26 00:02:31,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b1ad4c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:31, skipping insertion in model container [2022-11-26 00:02:31,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:31" (3/3) ... [2022-11-26 00:02:31,822 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2022-11-26 00:02:31,843 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:02:31,844 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-26 00:02:31,959 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:02:31,982 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;@4bf4baae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:02:31,982 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-26 00:02:31,995 INFO L276 IsEmpty]: Start isEmpty. Operand has 1997 states, 1182 states have (on average 1.3164128595600677) internal successors, (1556), 1224 states have internal predecessors, (1556), 692 states have call successors, (692), 123 states have call predecessors, (692), 122 states have return successors, (684), 671 states have call predecessors, (684), 684 states have call successors, (684) [2022-11-26 00:02:32,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-26 00:02:32,028 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:02:32,029 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:02:32,034 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:02:32,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:02:32,040 INFO L85 PathProgramCache]: Analyzing trace with hash -446688215, now seen corresponding path program 1 times [2022-11-26 00:02:32,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:02:32,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195892894] [2022-11-26 00:02:32,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:02:32,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:02:32,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:02:33,058 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2022-11-26 00:02:33,058 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:02:33,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195892894] [2022-11-26 00:02:33,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195892894] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:02:33,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:02:33,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:02:33,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798612993] [2022-11-26 00:02:33,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:02:33,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:02:33,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:02:33,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:02:33,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:02:33,129 INFO L87 Difference]: Start difference. First operand has 1997 states, 1182 states have (on average 1.3164128595600677) internal successors, (1556), 1224 states have internal predecessors, (1556), 692 states have call successors, (692), 123 states have call predecessors, (692), 122 states have return successors, (684), 671 states have call predecessors, (684), 684 states have call successors, (684) Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-26 00:02:37,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:38,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:02:38,389 INFO L93 Difference]: Finished difference Result 5718 states and 8561 transitions. [2022-11-26 00:02:38,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:02:38,392 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 152 [2022-11-26 00:02:38,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:02:38,431 INFO L225 Difference]: With dead ends: 5718 [2022-11-26 00:02:38,432 INFO L226 Difference]: Without dead ends: 3736 [2022-11-26 00:02:38,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:02:38,450 INFO L413 NwaCegarLoop]: 3125 mSDtfsCounter, 2624 mSDsluCounter, 2450 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2626 SdHoareTripleChecker+Valid, 5575 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:02:38,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2626 Valid, 5575 Invalid, 822 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 814 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-11-26 00:02:38,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3736 states. [2022-11-26 00:02:38,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3736 to 3732. [2022-11-26 00:02:38,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3732 states, 2222 states have (on average 1.3123312331233123) internal successors, (2916), 2297 states have internal predecessors, (2916), 1269 states have call successors, (1269), 239 states have call predecessors, (1269), 238 states have return successors, (1267), 1241 states have call predecessors, (1267), 1265 states have call successors, (1267) [2022-11-26 00:02:38,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3732 states to 3732 states and 5452 transitions. [2022-11-26 00:02:38,773 INFO L78 Accepts]: Start accepts. Automaton has 3732 states and 5452 transitions. Word has length 152 [2022-11-26 00:02:38,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:02:38,774 INFO L495 AbstractCegarLoop]: Abstraction has 3732 states and 5452 transitions. [2022-11-26 00:02:38,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-26 00:02:38,774 INFO L276 IsEmpty]: Start isEmpty. Operand 3732 states and 5452 transitions. [2022-11-26 00:02:38,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-26 00:02:38,780 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:02:38,780 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:02:38,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:02:38,781 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)] === [2022-11-26 00:02:38,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:02:38,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1128458331, now seen corresponding path program 1 times [2022-11-26 00:02:38,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:02:38,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610065884] [2022-11-26 00:02:38,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:02:38,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:02:38,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:02:39,175 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2022-11-26 00:02:39,175 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:02:39,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610065884] [2022-11-26 00:02:39,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610065884] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:02:39,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:02:39,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:02:39,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905744934] [2022-11-26 00:02:39,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:02:39,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:02:39,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:02:39,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:02:39,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:02:39,185 INFO L87 Difference]: Start difference. First operand 3732 states and 5452 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-26 00:02:42,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:44,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:45,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:02:45,270 INFO L93 Difference]: Finished difference Result 10976 states and 16063 transitions. [2022-11-26 00:02:45,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:02:45,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 155 [2022-11-26 00:02:45,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:02:45,328 INFO L225 Difference]: With dead ends: 10976 [2022-11-26 00:02:45,328 INFO L226 Difference]: Without dead ends: 7271 [2022-11-26 00:02:45,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:02:45,355 INFO L413 NwaCegarLoop]: 3325 mSDtfsCounter, 2746 mSDsluCounter, 2433 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2746 SdHoareTripleChecker+Valid, 5758 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:02:45,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2746 Valid, 5758 Invalid, 834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 828 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-11-26 00:02:45,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7271 states. [2022-11-26 00:02:45,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7271 to 7241. [2022-11-26 00:02:45,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7241 states, 4331 states have (on average 1.315400600323251) internal successors, (5697), 4486 states have internal predecessors, (5697), 2439 states have call successors, (2439), 475 states have call predecessors, (2439), 468 states have return successors, (2470), 2369 states have call predecessors, (2470), 2435 states have call successors, (2470) [2022-11-26 00:02:45,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7241 states to 7241 states and 10606 transitions. [2022-11-26 00:02:45,998 INFO L78 Accepts]: Start accepts. Automaton has 7241 states and 10606 transitions. Word has length 155 [2022-11-26 00:02:46,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:02:46,001 INFO L495 AbstractCegarLoop]: Abstraction has 7241 states and 10606 transitions. [2022-11-26 00:02:46,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-26 00:02:46,001 INFO L276 IsEmpty]: Start isEmpty. Operand 7241 states and 10606 transitions. [2022-11-26 00:02:46,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-26 00:02:46,005 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:02:46,006 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:02:46,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:02:46,006 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)] === [2022-11-26 00:02:46,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:02:46,008 INFO L85 PathProgramCache]: Analyzing trace with hash -205773031, now seen corresponding path program 1 times [2022-11-26 00:02:46,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:02:46,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215708000] [2022-11-26 00:02:46,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:02:46,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:02:46,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:02:46,318 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2022-11-26 00:02:46,319 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:02:46,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215708000] [2022-11-26 00:02:46,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215708000] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:02:46,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:02:46,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:02:46,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843748404] [2022-11-26 00:02:46,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:02:46,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:02:46,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:02:46,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:02:46,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:02:46,322 INFO L87 Difference]: Start difference. First operand 7241 states and 10606 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-26 00:02:49,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:51,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:02:51,473 INFO L93 Difference]: Finished difference Result 19511 states and 28367 transitions. [2022-11-26 00:02:51,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:02:51,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 153 [2022-11-26 00:02:51,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:02:51,554 INFO L225 Difference]: With dead ends: 19511 [2022-11-26 00:02:51,554 INFO L226 Difference]: Without dead ends: 12297 [2022-11-26 00:02:51,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:02:51,591 INFO L413 NwaCegarLoop]: 2977 mSDtfsCounter, 1937 mSDsluCounter, 2416 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1937 SdHoareTripleChecker+Valid, 5393 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:02:51,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1937 Valid, 5393 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 847 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-11-26 00:02:51,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12297 states. [2022-11-26 00:02:52,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12297 to 12269. [2022-11-26 00:02:52,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12269 states, 7311 states have (on average 1.305019833128163) internal successors, (9541), 7568 states have internal predecessors, (9541), 4064 states have call successors, (4064), 906 states have call predecessors, (4064), 891 states have return successors, (4139), 3924 states have call predecessors, (4139), 4060 states have call successors, (4139) [2022-11-26 00:02:52,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12269 states to 12269 states and 17744 transitions. [2022-11-26 00:02:52,487 INFO L78 Accepts]: Start accepts. Automaton has 12269 states and 17744 transitions. Word has length 153 [2022-11-26 00:02:52,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:02:52,489 INFO L495 AbstractCegarLoop]: Abstraction has 12269 states and 17744 transitions. [2022-11-26 00:02:52,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-26 00:02:52,491 INFO L276 IsEmpty]: Start isEmpty. Operand 12269 states and 17744 transitions. [2022-11-26 00:02:52,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-26 00:02:52,497 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:02:52,497 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:02:52,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:02:52,497 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)] === [2022-11-26 00:02:52,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:02:52,498 INFO L85 PathProgramCache]: Analyzing trace with hash -279394470, now seen corresponding path program 1 times [2022-11-26 00:02:52,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:02:52,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128419157] [2022-11-26 00:02:52,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:02:52,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:02:52,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:02:52,870 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2022-11-26 00:02:52,870 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:02:52,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128419157] [2022-11-26 00:02:52,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128419157] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:02:52,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:02:52,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:02:52,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089272596] [2022-11-26 00:02:52,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:02:52,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:02:52,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:02:52,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:02:52,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:02:52,874 INFO L87 Difference]: Start difference. First operand 12269 states and 17744 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-26 00:02:55,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:58,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:02:58,236 INFO L93 Difference]: Finished difference Result 24456 states and 35157 transitions. [2022-11-26 00:02:58,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:02:58,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 156 [2022-11-26 00:02:58,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:02:58,318 INFO L225 Difference]: With dead ends: 24456 [2022-11-26 00:02:58,318 INFO L226 Difference]: Without dead ends: 12214 [2022-11-26 00:02:58,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:02:58,394 INFO L413 NwaCegarLoop]: 3804 mSDtfsCounter, 2131 mSDsluCounter, 2455 mSDsCounter, 0 mSdLazyCounter, 1056 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2132 SdHoareTripleChecker+Valid, 6259 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1056 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:02:58,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2132 Valid, 6259 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1056 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-11-26 00:02:58,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12214 states. [2022-11-26 00:02:59,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12214 to 12180. [2022-11-26 00:02:59,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12180 states, 7209 states have (on average 1.3040643639894576) internal successors, (9401), 7474 states have internal predecessors, (9401), 3932 states have call successors, (3932), 1051 states have call predecessors, (3932), 1036 states have return successors, (4002), 3769 states have call predecessors, (4002), 3928 states have call successors, (4002) [2022-11-26 00:02:59,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12180 states to 12180 states and 17335 transitions. [2022-11-26 00:02:59,248 INFO L78 Accepts]: Start accepts. Automaton has 12180 states and 17335 transitions. Word has length 156 [2022-11-26 00:02:59,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:02:59,248 INFO L495 AbstractCegarLoop]: Abstraction has 12180 states and 17335 transitions. [2022-11-26 00:02:59,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-26 00:02:59,249 INFO L276 IsEmpty]: Start isEmpty. Operand 12180 states and 17335 transitions. [2022-11-26 00:02:59,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-11-26 00:02:59,254 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:02:59,254 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:02:59,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:02:59,255 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:02:59,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:02:59,255 INFO L85 PathProgramCache]: Analyzing trace with hash 955607024, now seen corresponding path program 1 times [2022-11-26 00:02:59,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:02:59,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538859880] [2022-11-26 00:02:59,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:02:59,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:02:59,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:02:59,913 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 762 trivial. 0 not checked. [2022-11-26 00:02:59,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:02:59,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538859880] [2022-11-26 00:02:59,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538859880] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:02:59,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:02:59,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:02:59,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083497436] [2022-11-26 00:02:59,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:02:59,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:02:59,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:02:59,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:02:59,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:02:59,917 INFO L87 Difference]: Start difference. First operand 12180 states and 17335 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-26 00:03:03,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:05,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:05,098 INFO L93 Difference]: Finished difference Result 12912 states and 18226 transitions. [2022-11-26 00:03:05,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:03:05,099 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 196 [2022-11-26 00:03:05,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:05,170 INFO L225 Difference]: With dead ends: 12912 [2022-11-26 00:03:05,170 INFO L226 Difference]: Without dead ends: 12910 [2022-11-26 00:03:05,178 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 [2022-11-26 00:03:05,179 INFO L413 NwaCegarLoop]: 2688 mSDtfsCounter, 2677 mSDsluCounter, 6103 mSDsCounter, 0 mSdLazyCounter, 1348 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2691 SdHoareTripleChecker+Valid, 8791 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1348 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:05,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2691 Valid, 8791 Invalid, 1351 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1348 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-11-26 00:03:05,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12910 states. [2022-11-26 00:03:05,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12910 to 12906. [2022-11-26 00:03:05,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12906 states, 7609 states have (on average 1.2976738073334209) internal successors, (9874), 7896 states have internal predecessors, (9874), 4138 states have call successors, (4138), 1168 states have call predecessors, (4138), 1156 states have return successors, (4210), 3967 states have call predecessors, (4210), 4134 states have call successors, (4210) [2022-11-26 00:03:06,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12906 states to 12906 states and 18222 transitions. [2022-11-26 00:03:06,054 INFO L78 Accepts]: Start accepts. Automaton has 12906 states and 18222 transitions. Word has length 196 [2022-11-26 00:03:06,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:06,055 INFO L495 AbstractCegarLoop]: Abstraction has 12906 states and 18222 transitions. [2022-11-26 00:03:06,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-26 00:03:06,056 INFO L276 IsEmpty]: Start isEmpty. Operand 12906 states and 18222 transitions. [2022-11-26 00:03:06,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-11-26 00:03:06,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:06,061 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:06,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:03:06,062 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:03:06,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:06,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1240235471, now seen corresponding path program 1 times [2022-11-26 00:03:06,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:06,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882518178] [2022-11-26 00:03:06,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:06,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:06,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:06,741 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 763 trivial. 0 not checked. [2022-11-26 00:03:06,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:06,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882518178] [2022-11-26 00:03:06,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882518178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:06,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:06,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:03:06,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103507416] [2022-11-26 00:03:06,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:06,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:03:06,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:06,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:03:06,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:03:06,745 INFO L87 Difference]: Start difference. First operand 12906 states and 18222 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-26 00:03:10,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:12,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:12,681 INFO L93 Difference]: Finished difference Result 12934 states and 18241 transitions. [2022-11-26 00:03:12,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:03:12,682 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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 202 [2022-11-26 00:03:12,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:12,759 INFO L225 Difference]: With dead ends: 12934 [2022-11-26 00:03:12,759 INFO L226 Difference]: Without dead ends: 12932 [2022-11-26 00:03:12,769 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 [2022-11-26 00:03:12,770 INFO L413 NwaCegarLoop]: 2687 mSDtfsCounter, 2684 mSDsluCounter, 6070 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2697 SdHoareTripleChecker+Valid, 8757 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:12,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2697 Valid, 8757 Invalid, 1346 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1344 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-11-26 00:03:12,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12932 states. [2022-11-26 00:03:13,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12932 to 12928. [2022-11-26 00:03:13,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12928 states, 7623 states have (on average 1.2972582972582973) internal successors, (9889), 7910 states have internal predecessors, (9889), 4138 states have call successors, (4138), 1176 states have call predecessors, (4138), 1164 states have return successors, (4210), 3967 states have call predecessors, (4210), 4134 states have call successors, (4210) [2022-11-26 00:03:13,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12928 states to 12928 states and 18237 transitions. [2022-11-26 00:03:13,635 INFO L78 Accepts]: Start accepts. Automaton has 12928 states and 18237 transitions. Word has length 202 [2022-11-26 00:03:13,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:13,636 INFO L495 AbstractCegarLoop]: Abstraction has 12928 states and 18237 transitions. [2022-11-26 00:03:13,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-26 00:03:13,636 INFO L276 IsEmpty]: Start isEmpty. Operand 12928 states and 18237 transitions. [2022-11-26 00:03:13,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-11-26 00:03:13,642 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:13,642 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:13,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:03:13,642 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:03:13,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:13,643 INFO L85 PathProgramCache]: Analyzing trace with hash 849156138, now seen corresponding path program 1 times [2022-11-26 00:03:13,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:13,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90087459] [2022-11-26 00:03:13,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:13,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:13,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:13,934 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 758 trivial. 0 not checked. [2022-11-26 00:03:13,934 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:13,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90087459] [2022-11-26 00:03:13,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90087459] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:13,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:13,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:03:13,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207347281] [2022-11-26 00:03:13,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:13,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:03:13,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:13,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:03:13,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:03:13,937 INFO L87 Difference]: Start difference. First operand 12928 states and 18237 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-26 00:03:16,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:19,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:19,120 INFO L93 Difference]: Finished difference Result 30351 states and 42799 transitions. [2022-11-26 00:03:19,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:03:19,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 205 [2022-11-26 00:03:19,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:19,210 INFO L225 Difference]: With dead ends: 30351 [2022-11-26 00:03:19,210 INFO L226 Difference]: Without dead ends: 17653 [2022-11-26 00:03:19,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:03:19,262 INFO L413 NwaCegarLoop]: 3688 mSDtfsCounter, 2128 mSDsluCounter, 2449 mSDsCounter, 0 mSdLazyCounter, 1014 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2129 SdHoareTripleChecker+Valid, 6137 SdHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1014 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:19,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2129 Valid, 6137 Invalid, 1030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1014 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-11-26 00:03:19,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17653 states. [2022-11-26 00:03:20,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17653 to 17611. [2022-11-26 00:03:20,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17611 states, 10384 states have (on average 1.2989214175654853) internal successors, (13488), 10785 states have internal predecessors, (13488), 5606 states have call successors, (5606), 1637 states have call predecessors, (5606), 1618 states have return successors, (5706), 5365 states have call predecessors, (5706), 5602 states have call successors, (5706) [2022-11-26 00:03:20,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17611 states to 17611 states and 24800 transitions. [2022-11-26 00:03:20,495 INFO L78 Accepts]: Start accepts. Automaton has 17611 states and 24800 transitions. Word has length 205 [2022-11-26 00:03:20,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:20,495 INFO L495 AbstractCegarLoop]: Abstraction has 17611 states and 24800 transitions. [2022-11-26 00:03:20,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-26 00:03:20,496 INFO L276 IsEmpty]: Start isEmpty. Operand 17611 states and 24800 transitions. [2022-11-26 00:03:20,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-11-26 00:03:20,501 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:20,502 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 4, 4, 3, 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] [2022-11-26 00:03:20,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:03:20,502 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:03:20,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:20,503 INFO L85 PathProgramCache]: Analyzing trace with hash -819362846, now seen corresponding path program 1 times [2022-11-26 00:03:20,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:20,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065085737] [2022-11-26 00:03:20,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:20,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:20,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:21,065 INFO L134 CoverageAnalysis]: Checked inductivity of 775 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 771 trivial. 0 not checked. [2022-11-26 00:03:21,065 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:21,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065085737] [2022-11-26 00:03:21,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065085737] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:21,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:21,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:03:21,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324317351] [2022-11-26 00:03:21,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:21,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:03:21,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:21,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:03:21,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:03:21,069 INFO L87 Difference]: Start difference. First operand 17611 states and 24800 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-26 00:03:24,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:26,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:26,624 INFO L93 Difference]: Finished difference Result 17621 states and 24807 transitions. [2022-11-26 00:03:26,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:03:26,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 205 [2022-11-26 00:03:26,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:26,715 INFO L225 Difference]: With dead ends: 17621 [2022-11-26 00:03:26,715 INFO L226 Difference]: Without dead ends: 17619 [2022-11-26 00:03:26,730 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 [2022-11-26 00:03:26,731 INFO L413 NwaCegarLoop]: 2687 mSDtfsCounter, 2685 mSDsluCounter, 6070 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2697 SdHoareTripleChecker+Valid, 8757 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:26,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2697 Valid, 8757 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1344 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-11-26 00:03:26,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17619 states. [2022-11-26 00:03:27,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17619 to 17615. [2022-11-26 00:03:27,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17615 states, 10387 states have (on average 1.2988350823144315) internal successors, (13491), 10788 states have internal predecessors, (13491), 5606 states have call successors, (5606), 1638 states have call predecessors, (5606), 1619 states have return successors, (5706), 5365 states have call predecessors, (5706), 5602 states have call successors, (5706) [2022-11-26 00:03:28,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17615 states to 17615 states and 24803 transitions. [2022-11-26 00:03:28,047 INFO L78 Accepts]: Start accepts. Automaton has 17615 states and 24803 transitions. Word has length 205 [2022-11-26 00:03:28,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:28,047 INFO L495 AbstractCegarLoop]: Abstraction has 17615 states and 24803 transitions. [2022-11-26 00:03:28,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-26 00:03:28,048 INFO L276 IsEmpty]: Start isEmpty. Operand 17615 states and 24803 transitions. [2022-11-26 00:03:28,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-11-26 00:03:28,054 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:28,055 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:28,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-26 00:03:28,055 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:03:28,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:28,056 INFO L85 PathProgramCache]: Analyzing trace with hash 38759089, now seen corresponding path program 1 times [2022-11-26 00:03:28,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:28,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248159955] [2022-11-26 00:03:28,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:28,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:28,734 INFO L134 CoverageAnalysis]: Checked inductivity of 781 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 775 trivial. 0 not checked. [2022-11-26 00:03:28,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:28,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248159955] [2022-11-26 00:03:28,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248159955] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:28,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:28,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:03:28,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786918239] [2022-11-26 00:03:28,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:28,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:03:28,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:28,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:03:28,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:03:28,739 INFO L87 Difference]: Start difference. First operand 17615 states and 24803 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-26 00:03:31,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:34,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:34,434 INFO L93 Difference]: Finished difference Result 17625 states and 24810 transitions. [2022-11-26 00:03:34,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:03:34,435 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 212 [2022-11-26 00:03:34,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:34,512 INFO L225 Difference]: With dead ends: 17625 [2022-11-26 00:03:34,513 INFO L226 Difference]: Without dead ends: 17623 [2022-11-26 00:03:34,522 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 [2022-11-26 00:03:34,523 INFO L413 NwaCegarLoop]: 2687 mSDtfsCounter, 2684 mSDsluCounter, 6070 mSDsCounter, 0 mSdLazyCounter, 1347 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2695 SdHoareTripleChecker+Valid, 8757 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1347 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:34,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2695 Valid, 8757 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1347 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-11-26 00:03:34,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17623 states. [2022-11-26 00:03:35,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17623 to 17619. [2022-11-26 00:03:35,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17619 states, 10390 states have (on average 1.2987487969201155) internal successors, (13494), 10791 states have internal predecessors, (13494), 5606 states have call successors, (5606), 1639 states have call predecessors, (5606), 1620 states have return successors, (5706), 5365 states have call predecessors, (5706), 5602 states have call successors, (5706) [2022-11-26 00:03:35,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17619 states to 17619 states and 24806 transitions. [2022-11-26 00:03:35,863 INFO L78 Accepts]: Start accepts. Automaton has 17619 states and 24806 transitions. Word has length 212 [2022-11-26 00:03:35,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:35,863 INFO L495 AbstractCegarLoop]: Abstraction has 17619 states and 24806 transitions. [2022-11-26 00:03:35,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-26 00:03:35,864 INFO L276 IsEmpty]: Start isEmpty. Operand 17619 states and 24806 transitions. [2022-11-26 00:03:35,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-11-26 00:03:35,872 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:35,872 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 5, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:35,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-26 00:03:35,873 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:03:35,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:35,873 INFO L85 PathProgramCache]: Analyzing trace with hash -429046928, now seen corresponding path program 1 times [2022-11-26 00:03:35,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:35,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102305786] [2022-11-26 00:03:35,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:35,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:35,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:36,517 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2022-11-26 00:03:36,518 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:36,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102305786] [2022-11-26 00:03:36,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102305786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:36,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:36,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:03:36,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306422395] [2022-11-26 00:03:36,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:36,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:03:36,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:36,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:03:36,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:03:36,521 INFO L87 Difference]: Start difference. First operand 17619 states and 24806 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-26 00:03:39,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:42,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:42,425 INFO L93 Difference]: Finished difference Result 17629 states and 24813 transitions. [2022-11-26 00:03:42,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:03:42,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 216 [2022-11-26 00:03:42,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:42,500 INFO L225 Difference]: With dead ends: 17629 [2022-11-26 00:03:42,501 INFO L226 Difference]: Without dead ends: 17627 [2022-11-26 00:03:42,512 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 [2022-11-26 00:03:42,513 INFO L413 NwaCegarLoop]: 2687 mSDtfsCounter, 2684 mSDsluCounter, 6070 mSDsCounter, 0 mSdLazyCounter, 1347 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2694 SdHoareTripleChecker+Valid, 8757 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1347 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:42,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2694 Valid, 8757 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1347 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-11-26 00:03:42,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17627 states. [2022-11-26 00:03:43,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17627 to 17623. [2022-11-26 00:03:43,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17623 states, 10393 states have (on average 1.298662561339363) internal successors, (13497), 10794 states have internal predecessors, (13497), 5606 states have call successors, (5606), 1640 states have call predecessors, (5606), 1621 states have return successors, (5706), 5365 states have call predecessors, (5706), 5602 states have call successors, (5706) [2022-11-26 00:03:43,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17623 states to 17623 states and 24809 transitions. [2022-11-26 00:03:43,746 INFO L78 Accepts]: Start accepts. Automaton has 17623 states and 24809 transitions. Word has length 216 [2022-11-26 00:03:43,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:43,746 INFO L495 AbstractCegarLoop]: Abstraction has 17623 states and 24809 transitions. [2022-11-26 00:03:43,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-26 00:03:43,747 INFO L276 IsEmpty]: Start isEmpty. Operand 17623 states and 24809 transitions. [2022-11-26 00:03:43,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-11-26 00:03:43,754 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:43,754 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:43,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-26 00:03:43,755 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:03:43,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:43,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1782639712, now seen corresponding path program 1 times [2022-11-26 00:03:43,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:43,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365282013] [2022-11-26 00:03:43,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:43,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:43,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:44,269 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 802 trivial. 0 not checked. [2022-11-26 00:03:44,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:44,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365282013] [2022-11-26 00:03:44,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365282013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:44,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:44,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:03:44,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352129490] [2022-11-26 00:03:44,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:44,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:03:44,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:44,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:03:44,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:03:44,272 INFO L87 Difference]: Start difference. First operand 17623 states and 24809 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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) [2022-11-26 00:03:47,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:50,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:50,044 INFO L93 Difference]: Finished difference Result 17633 states and 24816 transitions. [2022-11-26 00:03:50,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:03:50,045 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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 221 [2022-11-26 00:03:50,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:50,118 INFO L225 Difference]: With dead ends: 17633 [2022-11-26 00:03:50,118 INFO L226 Difference]: Without dead ends: 17631 [2022-11-26 00:03:50,129 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 [2022-11-26 00:03:50,130 INFO L413 NwaCegarLoop]: 2687 mSDtfsCounter, 2684 mSDsluCounter, 6070 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2693 SdHoareTripleChecker+Valid, 8757 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:50,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2693 Valid, 8757 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1344 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-11-26 00:03:50,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17631 states. [2022-11-26 00:03:51,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17631 to 17627. [2022-11-26 00:03:51,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17627 states, 10396 states have (on average 1.2985763755290496) internal successors, (13500), 10797 states have internal predecessors, (13500), 5606 states have call successors, (5606), 1641 states have call predecessors, (5606), 1622 states have return successors, (5706), 5365 states have call predecessors, (5706), 5602 states have call successors, (5706) [2022-11-26 00:03:51,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17627 states to 17627 states and 24812 transitions. [2022-11-26 00:03:51,536 INFO L78 Accepts]: Start accepts. Automaton has 17627 states and 24812 transitions. Word has length 221 [2022-11-26 00:03:51,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:51,537 INFO L495 AbstractCegarLoop]: Abstraction has 17627 states and 24812 transitions. [2022-11-26 00:03:51,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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) [2022-11-26 00:03:51,538 INFO L276 IsEmpty]: Start isEmpty. Operand 17627 states and 24812 transitions. [2022-11-26 00:03:51,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-11-26 00:03:51,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:51,547 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 7, 6, 6, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:51,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-26 00:03:51,547 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:03:51,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:51,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1709280976, now seen corresponding path program 1 times [2022-11-26 00:03:51,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:51,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344855885] [2022-11-26 00:03:51,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:51,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:51,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:52,294 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 822 trivial. 0 not checked. [2022-11-26 00:03:52,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:52,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344855885] [2022-11-26 00:03:52,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344855885] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:52,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:52,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:03:52,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119942591] [2022-11-26 00:03:52,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:52,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:03:52,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:52,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:03:52,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:03:52,298 INFO L87 Difference]: Start difference. First operand 17627 states and 24812 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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) [2022-11-26 00:03:55,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:58,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:58,476 INFO L93 Difference]: Finished difference Result 17637 states and 24819 transitions. [2022-11-26 00:03:58,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:03:58,477 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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 226 [2022-11-26 00:03:58,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:58,545 INFO L225 Difference]: With dead ends: 17637 [2022-11-26 00:03:58,546 INFO L226 Difference]: Without dead ends: 17635 [2022-11-26 00:03:58,555 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 [2022-11-26 00:03:58,555 INFO L413 NwaCegarLoop]: 2687 mSDtfsCounter, 2684 mSDsluCounter, 6070 mSDsCounter, 0 mSdLazyCounter, 1347 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2692 SdHoareTripleChecker+Valid, 8757 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1347 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:58,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2692 Valid, 8757 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1347 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-11-26 00:03:58,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17635 states. [2022-11-26 00:03:59,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17635 to 17631. [2022-11-26 00:03:59,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17631 states, 10399 states have (on average 1.2984902394461006) internal successors, (13503), 10800 states have internal predecessors, (13503), 5606 states have call successors, (5606), 1642 states have call predecessors, (5606), 1623 states have return successors, (5706), 5365 states have call predecessors, (5706), 5602 states have call successors, (5706) [2022-11-26 00:03:59,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17631 states to 17631 states and 24815 transitions. [2022-11-26 00:03:59,658 INFO L78 Accepts]: Start accepts. Automaton has 17631 states and 24815 transitions. Word has length 226 [2022-11-26 00:03:59,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:59,658 INFO L495 AbstractCegarLoop]: Abstraction has 17631 states and 24815 transitions. [2022-11-26 00:03:59,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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) [2022-11-26 00:03:59,659 INFO L276 IsEmpty]: Start isEmpty. Operand 17631 states and 24815 transitions. [2022-11-26 00:03:59,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-11-26 00:03:59,665 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:59,666 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 8, 7, 7, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:59,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-26 00:03:59,666 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:03:59,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:59,667 INFO L85 PathProgramCache]: Analyzing trace with hash 164522929, now seen corresponding path program 1 times [2022-11-26 00:03:59,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:59,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263672806] [2022-11-26 00:03:59,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:59,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:04:00,473 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 847 trivial. 0 not checked. [2022-11-26 00:04:00,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:04:00,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263672806] [2022-11-26 00:04:00,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263672806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:04:00,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:04:00,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-26 00:04:00,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743320513] [2022-11-26 00:04:00,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:04:00,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:04:00,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:04:00,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:04:00,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:04:00,477 INFO L87 Difference]: Start difference. First operand 17631 states and 24815 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-26 00:04:03,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:04:05,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:04:06,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:04:07,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:04:11,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:04:19,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:04:21,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:04:21,991 INFO L93 Difference]: Finished difference Result 28597 states and 40276 transitions. [2022-11-26 00:04:21,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:04:21,994 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 232 [2022-11-26 00:04:21,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:04:22,080 INFO L225 Difference]: With dead ends: 28597 [2022-11-26 00:04:22,080 INFO L226 Difference]: Without dead ends: 28595 [2022-11-26 00:04:22,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:04:22,094 INFO L413 NwaCegarLoop]: 2565 mSDtfsCounter, 2441 mSDsluCounter, 6350 mSDsCounter, 0 mSdLazyCounter, 5809 mSolverCounterSat, 485 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2677 SdHoareTripleChecker+Valid, 8915 SdHoareTripleChecker+Invalid, 6296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 5809 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:04:22,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2677 Valid, 8915 Invalid, 6296 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [485 Valid, 5809 Invalid, 2 Unknown, 0 Unchecked, 19.1s Time] [2022-11-26 00:04:22,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28595 states. [2022-11-26 00:04:24,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28595 to 28521. [2022-11-26 00:04:24,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28521 states, 16846 states have (on average 1.310637540068859) internal successors, (22079), 17603 states have internal predecessors, (22079), 8906 states have call successors, (8906), 2854 states have call predecessors, (8906), 2766 states have return successors, (9188), 8306 states have call predecessors, (9188), 8898 states have call successors, (9188) [2022-11-26 00:04:24,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28521 states to 28521 states and 40173 transitions. [2022-11-26 00:04:24,271 INFO L78 Accepts]: Start accepts. Automaton has 28521 states and 40173 transitions. Word has length 232 [2022-11-26 00:04:24,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:04:24,272 INFO L495 AbstractCegarLoop]: Abstraction has 28521 states and 40173 transitions. [2022-11-26 00:04:24,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-26 00:04:24,273 INFO L276 IsEmpty]: Start isEmpty. Operand 28521 states and 40173 transitions. [2022-11-26 00:04:24,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-11-26 00:04:24,280 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:04:24,280 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 9, 8, 8, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:04:24,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-26 00:04:24,281 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)] === [2022-11-26 00:04:24,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:04:24,282 INFO L85 PathProgramCache]: Analyzing trace with hash 636690160, now seen corresponding path program 1 times [2022-11-26 00:04:24,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:04:24,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232308090] [2022-11-26 00:04:24,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:04:24,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:04:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:04:24,912 INFO L134 CoverageAnalysis]: Checked inductivity of 890 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 874 trivial. 0 not checked. [2022-11-26 00:04:24,912 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:04:24,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232308090] [2022-11-26 00:04:24,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232308090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:04:24,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:04:24,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:04:24,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300906302] [2022-11-26 00:04:24,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:04:24,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:04:24,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:04:24,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:04:24,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:04:24,915 INFO L87 Difference]: Start difference. First operand 28521 states and 40173 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-26 00:04:28,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:04:31,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:04:31,480 INFO L93 Difference]: Finished difference Result 28535 states and 40184 transitions. [2022-11-26 00:04:31,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:04:31,481 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 236 [2022-11-26 00:04:31,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:04:31,574 INFO L225 Difference]: With dead ends: 28535 [2022-11-26 00:04:31,575 INFO L226 Difference]: Without dead ends: 28533 [2022-11-26 00:04:31,589 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 [2022-11-26 00:04:31,593 INFO L413 NwaCegarLoop]: 2687 mSDtfsCounter, 2684 mSDsluCounter, 6070 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2690 SdHoareTripleChecker+Valid, 8757 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:04:31,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2690 Valid, 8757 Invalid, 1346 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1344 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-11-26 00:04:31,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28533 states. [2022-11-26 00:04:33,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28533 to 28529. [2022-11-26 00:04:33,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28529 states, 16852 states have (on average 1.3105269404225017) internal successors, (22085), 17609 states have internal predecessors, (22085), 8906 states have call successors, (8906), 2856 states have call predecessors, (8906), 2768 states have return successors, (9188), 8306 states have call predecessors, (9188), 8898 states have call successors, (9188) [2022-11-26 00:04:34,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28529 states to 28529 states and 40179 transitions. [2022-11-26 00:04:34,038 INFO L78 Accepts]: Start accepts. Automaton has 28529 states and 40179 transitions. Word has length 236 [2022-11-26 00:04:34,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:04:34,039 INFO L495 AbstractCegarLoop]: Abstraction has 28529 states and 40179 transitions. [2022-11-26 00:04:34,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-26 00:04:34,039 INFO L276 IsEmpty]: Start isEmpty. Operand 28529 states and 40179 transitions. [2022-11-26 00:04:34,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-11-26 00:04:34,045 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:04:34,046 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 10, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:04:34,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-26 00:04:34,046 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:04:34,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:04:34,047 INFO L85 PathProgramCache]: Analyzing trace with hash 977597550, now seen corresponding path program 1 times [2022-11-26 00:04:34,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:04:34,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845392080] [2022-11-26 00:04:34,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:04:34,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:04:34,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:04:34,553 INFO L134 CoverageAnalysis]: Checked inductivity of 929 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 911 trivial. 0 not checked. [2022-11-26 00:04:34,553 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:04:34,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845392080] [2022-11-26 00:04:34,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845392080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:04:34,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:04:34,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:04:34,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686357833] [2022-11-26 00:04:34,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:04:34,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:04:34,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:04:34,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:04:34,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:04:34,556 INFO L87 Difference]: Start difference. First operand 28529 states and 40179 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-26 00:04:37,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:04:42,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:04:42,503 INFO L93 Difference]: Finished difference Result 28543 states and 40190 transitions. [2022-11-26 00:04:42,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:04:42,504 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 240 [2022-11-26 00:04:42,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:04:42,596 INFO L225 Difference]: With dead ends: 28543 [2022-11-26 00:04:42,596 INFO L226 Difference]: Without dead ends: 28541 [2022-11-26 00:04:42,610 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 [2022-11-26 00:04:42,610 INFO L413 NwaCegarLoop]: 2687 mSDtfsCounter, 2685 mSDsluCounter, 6070 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2690 SdHoareTripleChecker+Valid, 8757 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:04:42,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2690 Valid, 8757 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1344 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-11-26 00:04:42,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28541 states. [2022-11-26 00:04:44,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28541 to 28537. [2022-11-26 00:04:44,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28537 states, 16858 states have (on average 1.310416419504093) internal successors, (22091), 17615 states have internal predecessors, (22091), 8906 states have call successors, (8906), 2858 states have call predecessors, (8906), 2770 states have return successors, (9188), 8306 states have call predecessors, (9188), 8898 states have call successors, (9188) [2022-11-26 00:04:44,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28537 states to 28537 states and 40185 transitions. [2022-11-26 00:04:44,920 INFO L78 Accepts]: Start accepts. Automaton has 28537 states and 40185 transitions. Word has length 240 [2022-11-26 00:04:44,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:04:44,920 INFO L495 AbstractCegarLoop]: Abstraction has 28537 states and 40185 transitions. [2022-11-26 00:04:44,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-26 00:04:44,921 INFO L276 IsEmpty]: Start isEmpty. Operand 28537 states and 40185 transitions. [2022-11-26 00:04:44,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-11-26 00:04:44,927 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:04:44,928 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 11, 10, 10, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:04:44,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-26 00:04:44,928 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:04:44,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:04:44,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1470795009, now seen corresponding path program 1 times [2022-11-26 00:04:44,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:04:44,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195212791] [2022-11-26 00:04:44,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:04:44,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:04:45,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:04:45,466 INFO L134 CoverageAnalysis]: Checked inductivity of 963 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 943 trivial. 0 not checked. [2022-11-26 00:04:45,467 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:04:45,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195212791] [2022-11-26 00:04:45,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195212791] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:04:45,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:04:45,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:04:45,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742601081] [2022-11-26 00:04:45,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:04:45,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:04:45,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:04:45,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:04:45,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:04:45,470 INFO L87 Difference]: Start difference. First operand 28537 states and 40185 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-26 00:04:48,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:04:52,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:04:52,818 INFO L93 Difference]: Finished difference Result 28551 states and 40196 transitions. [2022-11-26 00:04:52,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:04:52,819 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 247 [2022-11-26 00:04:52,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:04:52,893 INFO L225 Difference]: With dead ends: 28551 [2022-11-26 00:04:52,893 INFO L226 Difference]: Without dead ends: 28549 [2022-11-26 00:04:52,904 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 [2022-11-26 00:04:52,905 INFO L413 NwaCegarLoop]: 2687 mSDtfsCounter, 2684 mSDsluCounter, 6070 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2688 SdHoareTripleChecker+Valid, 8757 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:04:52,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2688 Valid, 8757 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1344 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-11-26 00:04:52,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28549 states. [2022-11-26 00:04:55,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28549 to 28545. [2022-11-26 00:04:55,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28545 states, 16864 states have (on average 1.3103059772296015) internal successors, (22097), 17621 states have internal predecessors, (22097), 8906 states have call successors, (8906), 2860 states have call predecessors, (8906), 2772 states have return successors, (9188), 8306 states have call predecessors, (9188), 8898 states have call successors, (9188) [2022-11-26 00:04:55,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28545 states to 28545 states and 40191 transitions. [2022-11-26 00:04:55,610 INFO L78 Accepts]: Start accepts. Automaton has 28545 states and 40191 transitions. Word has length 247 [2022-11-26 00:04:55,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:04:55,610 INFO L495 AbstractCegarLoop]: Abstraction has 28545 states and 40191 transitions. [2022-11-26 00:04:55,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-26 00:04:55,611 INFO L276 IsEmpty]: Start isEmpty. Operand 28545 states and 40191 transitions. [2022-11-26 00:04:55,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-11-26 00:04:55,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:04:55,617 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 6, 6, 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] [2022-11-26 00:04:55,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-26 00:04:55,617 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:04:55,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:04:55,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1696335075, now seen corresponding path program 1 times [2022-11-26 00:04:55,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:04:55,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534488540] [2022-11-26 00:04:55,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:04:55,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:04:55,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:04:56,388 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 794 trivial. 0 not checked. [2022-11-26 00:04:56,389 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:04:56,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534488540] [2022-11-26 00:04:56,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534488540] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:04:56,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:04:56,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-26 00:04:56,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363748595] [2022-11-26 00:04:56,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:04:56,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:04:56,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:04:56,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:04:56,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:04:56,391 INFO L87 Difference]: Start difference. First operand 28545 states and 40191 transitions. Second operand has 8 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-26 00:05:00,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:05:05,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:05:05,454 INFO L93 Difference]: Finished difference Result 57148 states and 80697 transitions. [2022-11-26 00:05:05,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-26 00:05:05,455 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) Word has length 257 [2022-11-26 00:05:05,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:05:05,605 INFO L225 Difference]: With dead ends: 57148 [2022-11-26 00:05:05,605 INFO L226 Difference]: Without dead ends: 28833 [2022-11-26 00:05:05,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:05:05,744 INFO L413 NwaCegarLoop]: 2483 mSDtfsCounter, 11 mSDsluCounter, 14856 mSDsCounter, 0 mSdLazyCounter, 2911 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 17339 SdHoareTripleChecker+Invalid, 2920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2911 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:05:05,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 17339 Invalid, 2920 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2911 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-11-26 00:05:05,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28833 states.