./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e6b11-25ff-4716-b34f-bd66b277b995/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e6b11-25ff-4716-b34f-bd66b277b995/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e6b11-25ff-4716-b34f-bd66b277b995/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e6b11-25ff-4716-b34f-bd66b277b995/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e6b11-25ff-4716-b34f-bd66b277b995/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e6b11-25ff-4716-b34f-bd66b277b995/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 24362a0e750636c52038fc4d3468ffab15d6b74376c584ca05819f34fdf58260 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 06:29:44,754 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:29:44,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:29:44,768 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:29:44,769 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:29:44,769 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:29:44,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:29:44,771 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:29:44,773 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:29:44,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:29:44,774 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:29:44,775 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:29:44,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:29:44,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:29:44,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:29:44,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:29:44,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:29:44,778 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:29:44,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:29:44,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:29:44,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:29:44,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:29:44,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:29:44,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:29:44,786 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:29:44,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:29:44,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:29:44,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:29:44,788 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:29:44,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:29:44,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:29:44,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:29:44,790 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:29:44,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:29:44,791 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:29:44,791 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:29:44,792 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:29:44,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:29:44,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:29:44,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:29:44,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:29:44,794 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e6b11-25ff-4716-b34f-bd66b277b995/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 06:29:44,808 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:29:44,809 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:29:44,809 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:29:44,809 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:29:44,809 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:29:44,810 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:29:44,810 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:29:44,810 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:29:44,810 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:29:44,810 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:29:44,810 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:29:44,810 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:29:44,810 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:29:44,811 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:29:44,811 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:29:44,811 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:29:44,811 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:29:44,811 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:29:44,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:29:44,812 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:29:44,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:29:44,812 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:29:44,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:29:44,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:29:44,812 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:29:44,812 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:29:44,812 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:29:44,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:29:44,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:29:44,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:29:44,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:29:44,813 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:29:44,813 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:29:44,813 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:29:44,813 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:29:44,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:29:44,814 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:29:44,814 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:29:44,814 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_237e6b11-25ff-4716-b34f-bd66b277b995/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e6b11-25ff-4716-b34f-bd66b277b995/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24362a0e750636c52038fc4d3468ffab15d6b74376c584ca05819f34fdf58260 [2022-12-14 06:29:44,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:29:45,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:29:45,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:29:45,004 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:29:45,004 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:29:45,005 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e6b11-25ff-4716-b34f-bd66b277b995/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i [2022-12-14 06:29:47,575 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:29:47,956 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:29:47,956 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e6b11-25ff-4716-b34f-bd66b277b995/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i [2022-12-14 06:29:47,983 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e6b11-25ff-4716-b34f-bd66b277b995/bin/utaipan-gh47qXpMRh/data/a4ce15548/30cef18fa5fa4287a0417c89c593a736/FLAG5ae34e721 [2022-12-14 06:29:48,152 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e6b11-25ff-4716-b34f-bd66b277b995/bin/utaipan-gh47qXpMRh/data/a4ce15548/30cef18fa5fa4287a0417c89c593a736 [2022-12-14 06:29:48,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:29:48,157 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:29:48,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:29:48,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:29:48,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:29:48,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:29:48" (1/1) ... [2022-12-14 06:29:48,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ec0b18c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:29:48, skipping insertion in model container [2022-12-14 06:29:48,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:29:48" (1/1) ... [2022-12-14 06:29:48,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:29:48,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:29:48,781 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 06:29:48,797 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 06:29:48,887 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 06:29:48,940 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-12-14 06:29:49,060 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,067 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,086 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,091 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 06:29:49,091 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,093 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,093 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,094 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,094 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 06:29:49,099 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 06:29:49,099 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,100 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,101 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,102 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,102 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 06:29:49,121 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,121 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:29:49,122 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,126 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,126 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:29:49,127 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,132 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,133 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,139 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,140 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,140 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,145 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,145 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:29:49,146 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,150 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 06:29:49,150 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,151 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,152 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,152 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,153 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,153 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,154 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,154 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 06:29:49,158 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 06:29:49,158 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-12-14 06:29:49,164 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,165 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,171 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,172 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,173 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,176 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,182 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,186 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,186 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,187 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,193 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,193 WARN L623 FunctionHandler]: Unknown extern function mii_check_media [2022-12-14 06:29:49,193 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-12-14 06:29:49,195 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,200 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,201 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,202 WARN L623 FunctionHandler]: Unknown extern function usbnet_defer_kevent [2022-12-14 06:29:49,202 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,213 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,222 WARN L623 FunctionHandler]: Unknown extern function device_set_wakeup_enable [2022-12-14 06:29:49,222 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,227 WARN L623 FunctionHandler]: Unknown extern function generic_mii_ioctl [2022-12-14 06:29:49,234 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,235 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,241 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,242 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,243 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,243 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,248 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 06:29:49,248 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,249 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,250 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,250 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-12-14 06:29:49,251 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,256 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,256 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,257 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,258 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,262 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,263 WARN L623 FunctionHandler]: Unknown extern function usbnet_change_mtu [2022-12-14 06:29:49,267 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,271 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,272 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 06:29:49,272 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,278 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,278 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,279 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,279 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,280 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 06:29:49,280 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,280 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,282 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,282 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,283 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,283 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 06:29:49,283 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,284 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,285 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,285 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,286 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,287 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,288 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,288 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,289 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,290 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,291 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,292 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,292 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,293 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,294 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,294 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,295 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,308 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,309 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,310 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,311 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,312 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,312 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,313 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,313 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,314 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,315 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,315 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,316 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,317 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,317 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,318 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,318 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,319 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,319 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,320 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,320 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,321 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,322 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,322 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,323 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,324 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,324 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,325 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,325 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,326 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,327 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,327 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,328 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,329 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,329 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,330 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,330 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,331 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,331 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,332 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,333 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,338 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:29:49,338 WARN L623 FunctionHandler]: Unknown extern function usbnet_get_endpoints [2022-12-14 06:29:49,339 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,340 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 06:29:49,340 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 06:29:49,340 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 06:29:49,341 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 06:29:49,341 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,342 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,347 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,347 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 06:29:49,351 WARN L623 FunctionHandler]: Unknown extern function crc16 [2022-12-14 06:29:49,351 WARN L623 FunctionHandler]: Unknown extern function bitrev16 [2022-12-14 06:29:49,356 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,356 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,357 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,357 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,358 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,362 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,362 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,367 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,367 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,368 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,372 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,373 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,377 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,378 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,379 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,379 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,380 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,384 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,385 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,385 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,390 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,391 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,396 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,397 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,398 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,398 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 06:29:49,399 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,399 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,404 WARN L623 FunctionHandler]: Unknown extern function usbnet_suspend [2022-12-14 06:29:49,405 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,405 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,406 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 06:29:49,406 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,407 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,407 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,408 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,408 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,409 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 06:29:49,409 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,410 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,410 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 06:29:49,411 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,412 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 06:29:49,412 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,413 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,413 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,413 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 06:29:49,414 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,414 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,414 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 06:29:49,415 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,415 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,416 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,416 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,416 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 06:29:49,417 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,417 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,418 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 06:29:49,418 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,418 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,419 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 06:29:49,419 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,420 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,420 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 06:29:49,420 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,421 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,421 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,422 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,422 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 06:29:49,422 WARN L623 FunctionHandler]: Unknown extern function usbnet_resume [2022-12-14 06:29:49,427 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,428 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,428 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,429 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,429 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,430 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 06:29:49,430 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,430 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,431 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,431 WARN L623 FunctionHandler]: Unknown extern function usbnet_resume [2022-12-14 06:29:49,439 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-12-14 06:29:49,440 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-12-14 06:29:49,441 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,442 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:49,443 WARN L623 FunctionHandler]: Unknown extern function skb_trim [2022-12-14 06:29:49,443 WARN L623 FunctionHandler]: Unknown extern function skb_clone [2022-12-14 06:29:49,444 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:49,444 WARN L623 FunctionHandler]: Unknown extern function skb_trim [2022-12-14 06:29:49,444 WARN L623 FunctionHandler]: Unknown extern function usbnet_skb_return [2022-12-14 06:29:49,445 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-12-14 06:29:49,445 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-12-14 06:29:49,449 WARN L623 FunctionHandler]: Unknown extern function skb_copy_expand [2022-12-14 06:29:49,451 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-12-14 06:29:49,451 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-12-14 06:29:49,684 WARN L623 FunctionHandler]: Unknown extern function usbnet_get_link [2022-12-14 06:29:49,684 WARN L623 FunctionHandler]: Unknown extern function usbnet_get_msglevel [2022-12-14 06:29:49,685 WARN L623 FunctionHandler]: Unknown extern function usbnet_get_settings [2022-12-14 06:29:49,685 WARN L623 FunctionHandler]: Unknown extern function usbnet_open [2022-12-14 06:29:49,686 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 06:29:49,686 WARN L623 FunctionHandler]: Unknown extern function usbnet_start_xmit [2022-12-14 06:29:49,687 WARN L623 FunctionHandler]: Unknown extern function usbnet_stop [2022-12-14 06:29:49,687 WARN L623 FunctionHandler]: Unknown extern function usbnet_tx_timeout [2022-12-14 06:29:49,687 WARN L623 FunctionHandler]: Unknown extern function usbnet_get_drvinfo [2022-12-14 06:29:49,687 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 06:29:49,688 WARN L623 FunctionHandler]: Unknown extern function usbnet_nway_reset [2022-12-14 06:29:49,688 WARN L623 FunctionHandler]: Unknown extern function usbnet_set_msglevel [2022-12-14 06:29:49,688 WARN L623 FunctionHandler]: Unknown extern function usbnet_set_settings [2022-12-14 06:29:49,693 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 06:29:49,702 WARN L623 FunctionHandler]: Unknown extern function usbnet_probe [2022-12-14 06:29:49,702 WARN L623 FunctionHandler]: Unknown extern function usbnet_disconnect [2022-12-14 06:29:49,703 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_usb_register_driver [2022-12-14 06:29:49,705 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 06:29:49,707 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 06:29:49,707 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 06:29:49,707 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 06:29:49,708 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 06:29:49,750 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 06:29:49,750 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 06:29:49,757 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 06:29:50,156 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_237e6b11-25ff-4716-b34f-bd66b277b995/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359515,359528] [2022-12-14 06:29:50,159 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_237e6b11-25ff-4716-b34f-bd66b277b995/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359684,359697] [2022-12-14 06:29:50,160 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_237e6b11-25ff-4716-b34f-bd66b277b995/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359851,359864] [2022-12-14 06:29:50,160 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_237e6b11-25ff-4716-b34f-bd66b277b995/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[360019,360032] [2022-12-14 06:29:50,174 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:29:50,206 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:29:50,262 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 06:29:50,262 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 06:29:50,265 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 06:29:50,266 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-12-14 06:29:50,269 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,270 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,272 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,272 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 06:29:50,273 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,273 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,274 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,274 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,274 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 06:29:50,275 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 06:29:50,275 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,275 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,276 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,276 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,277 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 06:29:50,278 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,278 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:29:50,279 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,279 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,279 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:29:50,280 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,281 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,281 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,282 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,283 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,283 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,284 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,284 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 06:29:50,285 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,285 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 06:29:50,286 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,286 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,286 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,287 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,287 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,287 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,288 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,288 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 06:29:50,288 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 06:29:50,289 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-12-14 06:29:50,290 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,290 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,292 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,293 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,293 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,295 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,297 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,298 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,298 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,299 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,300 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,300 WARN L623 FunctionHandler]: Unknown extern function mii_check_media [2022-12-14 06:29:50,300 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-12-14 06:29:50,301 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,302 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,303 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,303 WARN L623 FunctionHandler]: Unknown extern function usbnet_defer_kevent [2022-12-14 06:29:50,303 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,304 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,305 WARN L623 FunctionHandler]: Unknown extern function device_set_wakeup_enable [2022-12-14 06:29:50,305 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,306 WARN L623 FunctionHandler]: Unknown extern function generic_mii_ioctl [2022-12-14 06:29:50,307 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,308 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,309 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,310 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,310 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,310 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,311 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 06:29:50,311 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,312 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,312 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,312 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-12-14 06:29:50,313 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,313 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,314 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,314 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,315 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,315 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,316 WARN L623 FunctionHandler]: Unknown extern function usbnet_change_mtu [2022-12-14 06:29:50,316 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,317 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,317 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 06:29:50,317 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,319 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,319 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,320 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,320 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,320 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 06:29:50,320 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,321 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,321 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,322 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,322 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,322 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 06:29:50,323 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,323 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,324 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,324 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,325 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,325 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,326 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,326 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,326 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,327 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,328 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,328 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,329 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,329 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,330 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,330 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,331 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,331 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,345 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,346 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,346 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,347 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,348 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,349 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,350 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,350 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,351 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,351 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,352 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,353 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,353 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,354 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,354 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,355 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,355 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,356 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,356 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,357 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,358 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,358 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,359 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,359 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,360 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,360 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,361 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,362 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,362 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,363 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,364 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,364 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,365 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,365 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,366 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,367 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,367 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,368 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,369 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,373 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:29:50,373 WARN L623 FunctionHandler]: Unknown extern function usbnet_get_endpoints [2022-12-14 06:29:50,373 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,374 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 06:29:50,375 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 06:29:50,375 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 06:29:50,375 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 06:29:50,376 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,377 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,379 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,379 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 06:29:50,380 WARN L623 FunctionHandler]: Unknown extern function crc16 [2022-12-14 06:29:50,380 WARN L623 FunctionHandler]: Unknown extern function bitrev16 [2022-12-14 06:29:50,381 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,381 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,381 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,382 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,382 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,383 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,383 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,384 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,384 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,385 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,385 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,386 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,387 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,387 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,388 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,388 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,388 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,389 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,390 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,390 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,391 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,391 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,392 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,393 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,393 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,394 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 06:29:50,394 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,394 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,396 WARN L623 FunctionHandler]: Unknown extern function usbnet_suspend [2022-12-14 06:29:50,396 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,396 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,397 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 06:29:50,397 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,397 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,398 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,398 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,399 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,399 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 06:29:50,399 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,400 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,400 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 06:29:50,401 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,401 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 06:29:50,402 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,402 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,402 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,403 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 06:29:50,403 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,403 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,403 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 06:29:50,404 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,404 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,404 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,405 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,405 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 06:29:50,405 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,406 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,406 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 06:29:50,406 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,407 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,407 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 06:29:50,407 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,407 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,408 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 06:29:50,408 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,409 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,409 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,409 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,410 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 06:29:50,410 WARN L623 FunctionHandler]: Unknown extern function usbnet_resume [2022-12-14 06:29:50,412 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,412 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,412 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,413 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,413 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,414 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 06:29:50,414 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,414 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,414 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,415 WARN L623 FunctionHandler]: Unknown extern function usbnet_resume [2022-12-14 06:29:50,416 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-12-14 06:29:50,416 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-12-14 06:29:50,417 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,419 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 06:29:50,419 WARN L623 FunctionHandler]: Unknown extern function skb_trim [2022-12-14 06:29:50,420 WARN L623 FunctionHandler]: Unknown extern function skb_clone [2022-12-14 06:29:50,420 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 06:29:50,420 WARN L623 FunctionHandler]: Unknown extern function skb_trim [2022-12-14 06:29:50,421 WARN L623 FunctionHandler]: Unknown extern function usbnet_skb_return [2022-12-14 06:29:50,421 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-12-14 06:29:50,421 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-12-14 06:29:50,422 WARN L623 FunctionHandler]: Unknown extern function skb_copy_expand [2022-12-14 06:29:50,423 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-12-14 06:29:50,423 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-12-14 06:29:50,429 WARN L623 FunctionHandler]: Unknown extern function usbnet_get_link [2022-12-14 06:29:50,430 WARN L623 FunctionHandler]: Unknown extern function usbnet_get_msglevel [2022-12-14 06:29:50,430 WARN L623 FunctionHandler]: Unknown extern function usbnet_get_settings [2022-12-14 06:29:50,430 WARN L623 FunctionHandler]: Unknown extern function usbnet_open [2022-12-14 06:29:50,431 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 06:29:50,431 WARN L623 FunctionHandler]: Unknown extern function usbnet_start_xmit [2022-12-14 06:29:50,431 WARN L623 FunctionHandler]: Unknown extern function usbnet_stop [2022-12-14 06:29:50,431 WARN L623 FunctionHandler]: Unknown extern function usbnet_tx_timeout [2022-12-14 06:29:50,431 WARN L623 FunctionHandler]: Unknown extern function usbnet_get_drvinfo [2022-12-14 06:29:50,432 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 06:29:50,432 WARN L623 FunctionHandler]: Unknown extern function usbnet_nway_reset [2022-12-14 06:29:50,432 WARN L623 FunctionHandler]: Unknown extern function usbnet_set_msglevel [2022-12-14 06:29:50,432 WARN L623 FunctionHandler]: Unknown extern function usbnet_set_settings [2022-12-14 06:29:50,434 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 06:29:50,441 WARN L623 FunctionHandler]: Unknown extern function usbnet_probe [2022-12-14 06:29:50,442 WARN L623 FunctionHandler]: Unknown extern function usbnet_disconnect [2022-12-14 06:29:50,442 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_usb_register_driver [2022-12-14 06:29:50,445 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 06:29:50,446 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 06:29:50,447 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 06:29:50,447 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 06:29:50,447 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 06:29:50,450 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 06:29:50,450 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 06:29:50,450 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 06:29:50,465 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_237e6b11-25ff-4716-b34f-bd66b277b995/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359515,359528] [2022-12-14 06:29:50,465 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_237e6b11-25ff-4716-b34f-bd66b277b995/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359684,359697] [2022-12-14 06:29:50,465 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_237e6b11-25ff-4716-b34f-bd66b277b995/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359851,359864] [2022-12-14 06:29:50,466 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_237e6b11-25ff-4716-b34f-bd66b277b995/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[360019,360032] [2022-12-14 06:29:50,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:29:50,581 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:29:50,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:29:50 WrapperNode [2022-12-14 06:29:50,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:29:50,582 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:29:50,582 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:29:50,582 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:29:50,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:29:50" (1/1) ... [2022-12-14 06:29:50,647 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:29:50" (1/1) ... [2022-12-14 06:29:50,776 INFO L138 Inliner]: procedures = 390, calls = 3772, calls flagged for inlining = 180, calls inlined = 163, statements flattened = 7756 [2022-12-14 06:29:50,777 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:29:50,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:29:50,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:29:50,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:29:50,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:29:50" (1/1) ... [2022-12-14 06:29:50,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:29:50" (1/1) ... [2022-12-14 06:29:50,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:29:50" (1/1) ... [2022-12-14 06:29:50,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:29:50" (1/1) ... [2022-12-14 06:29:50,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:29:50" (1/1) ... [2022-12-14 06:29:50,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:29:50" (1/1) ... [2022-12-14 06:29:50,902 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:29:50" (1/1) ... [2022-12-14 06:29:50,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:29:50" (1/1) ... [2022-12-14 06:29:50,960 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:29:50,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:29:50,961 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:29:50,961 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:29:50,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:29:50" (1/1) ... [2022-12-14 06:29:50,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:29:50,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e6b11-25ff-4716-b34f-bd66b277b995/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:29:50,986 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e6b11-25ff-4716-b34f-bd66b277b995/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:29:50,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e6b11-25ff-4716-b34f-bd66b277b995/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:29:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_write_reg_nopm [2022-12-14 06:29:51,017 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_write_reg_nopm [2022-12-14 06:29:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 06:29:51,017 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 06:29:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_nway_reset [2022-12-14 06:29:51,017 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_nway_reset [2022-12-14 06:29:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 06:29:51,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 06:29:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure smsc_crc [2022-12-14 06:29:51,017 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc_crc [2022-12-14 06:29:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 06:29:51,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 06:29:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2022-12-14 06:29:51,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2022-12-14 06:29:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_enable_phy_wakeup_interrupts [2022-12-14 06:29:51,017 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_enable_phy_wakeup_interrupts [2022-12-14 06:29:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_reset [2022-12-14 06:29:51,018 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_reset [2022-12-14 06:29:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_wait_eeprom [2022-12-14 06:29:51,018 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_wait_eeprom [2022-12-14 06:29:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc75xx_mdio_write [2022-12-14 06:29:51,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc75xx_mdio_write [2022-12-14 06:29:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 06:29:51,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 06:29:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd_nopm [2022-12-14 06:29:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-12-14 06:29:51,018 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-12-14 06:29:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_rx_csum_offload [2022-12-14 06:29:51,018 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_rx_csum_offload [2022-12-14 06:29:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-12-14 06:29:51,018 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-12-14 06:29:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 06:29:51,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 06:29:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 06:29:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_set_features [2022-12-14 06:29:51,018 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_set_features [2022-12-14 06:29:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 06:29:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2022-12-14 06:29:51,019 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2022-12-14 06:29:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 06:29:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 06:29:51,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 06:29:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2022-12-14 06:29:51,019 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2022-12-14 06:29:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_mdio_read_nopm [2022-12-14 06:29:51,019 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_mdio_read_nopm [2022-12-14 06:29:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 06:29:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 06:29:51,019 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 06:29:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd [2022-12-14 06:29:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc75xx_phy_wait_not_busy [2022-12-14 06:29:51,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc75xx_phy_wait_not_busy [2022-12-14 06:29:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-12-14 06:29:51,019 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-12-14 06:29:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_mdio_write [2022-12-14 06:29:51,019 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_mdio_write [2022-12-14 06:29:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd_nopm [2022-12-14 06:29:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 06:29:51,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 06:29:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 06:29:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-12-14 06:29:51,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-12-14 06:29:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-12-14 06:29:51,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-12-14 06:29:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:29:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 06:29:51,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 06:29:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-12-14 06:29:51,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-12-14 06:29:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 06:29:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-14 06:29:51,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-14 06:29:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_open [2022-12-14 06:29:51,020 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_open [2022-12-14 06:29:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_mdio_read [2022-12-14 06:29:51,020 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_mdio_read [2022-12-14 06:29:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_set_rx_max_frame_length [2022-12-14 06:29:51,020 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_set_rx_max_frame_length [2022-12-14 06:29:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-12-14 06:29:51,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-12-14 06:29:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:29:51,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:29:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc75xx_read_reg [2022-12-14 06:29:51,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc75xx_read_reg [2022-12-14 06:29:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-12-14 06:29:51,021 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-12-14 06:29:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-12-14 06:29:51,021 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-12-14 06:29:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_ethtool_get_eeprom_len [2022-12-14 06:29:51,021 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_ethtool_get_eeprom_len [2022-12-14 06:29:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 06:29:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 06:29:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 06:29:51,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 06:29:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_smsc75xx_driver_exit_6_2 [2022-12-14 06:29:51,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_smsc75xx_driver_exit_6_2 [2022-12-14 06:29:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-12-14 06:29:51,021 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-12-14 06:29:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 06:29:51,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 06:29:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~X~~u16~0~X~$Pointer$~X~~u16~0~TO~int [2022-12-14 06:29:51,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~X~~u16~0~X~$Pointer$~X~~u16~0~TO~int [2022-12-14 06:29:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_read_reg [2022-12-14 06:29:51,021 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_read_reg [2022-12-14 06:29:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_stop [2022-12-14 06:29:51,021 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_stop [2022-12-14 06:29:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-12-14 06:29:51,022 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-12-14 06:29:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_mdio_write_nopm [2022-12-14 06:29:51,022 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_mdio_write_nopm [2022-12-14 06:29:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_set_multicast [2022-12-14 06:29:51,022 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_set_multicast [2022-12-14 06:29:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 06:29:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-12-14 06:29:51,022 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-12-14 06:29:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 06:29:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 06:29:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-12-14 06:29:51,022 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-12-14 06:29:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-12-14 06:29:51,022 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-12-14 06:29:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc75xx_mdio_read [2022-12-14 06:29:51,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc75xx_mdio_read [2022-12-14 06:29:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 06:29:51,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 06:29:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-14 06:29:51,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-14 06:29:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_read_reg_nopm [2022-12-14 06:29:51,022 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_read_reg_nopm [2022-12-14 06:29:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2022-12-14 06:29:51,023 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2022-12-14 06:29:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc75xx_write_reg [2022-12-14 06:29:51,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc75xx_write_reg [2022-12-14 06:29:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_2_4 [2022-12-14 06:29:51,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_2_4 [2022-12-14 06:29:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_wait_ready [2022-12-14 06:29:51,023 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_wait_ready [2022-12-14 06:29:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 06:29:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-12-14 06:29:51,023 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-12-14 06:29:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_read_eeprom [2022-12-14 06:29:51,023 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_read_eeprom [2022-12-14 06:29:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 06:29:51,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 06:29:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd [2022-12-14 06:29:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_link_reset [2022-12-14 06:29:51,023 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_link_reset [2022-12-14 06:29:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_resume [2022-12-14 06:29:51,023 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_resume [2022-12-14 06:29:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_write_wuff [2022-12-14 06:29:51,023 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_write_wuff [2022-12-14 06:29:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_eeprom_confirm_not_busy [2022-12-14 06:29:51,023 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_eeprom_confirm_not_busy [2022-12-14 06:29:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 06:29:51,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 06:29:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_enter_suspend2 [2022-12-14 06:29:51,024 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_enter_suspend2 [2022-12-14 06:29:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_enter_suspend1 [2022-12-14 06:29:51,024 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_enter_suspend1 [2022-12-14 06:29:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_write_reg [2022-12-14 06:29:51,024 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_write_reg [2022-12-14 06:29:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:29:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_rfe_ctl_lock_of_smsc75xx_priv [2022-12-14 06:29:51,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_rfe_ctl_lock_of_smsc75xx_priv [2022-12-14 06:29:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-12-14 06:29:51,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-12-14 06:29:51,606 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:29:51,609 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:29:51,963 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 06:29:55,337 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-12-14 06:29:57,811 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:29:58,524 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:29:58,524 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 06:29:58,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:29:58 BoogieIcfgContainer [2022-12-14 06:29:58,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:29:58,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:29:58,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:29:58,531 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:29:58,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:29:48" (1/3) ... [2022-12-14 06:29:58,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de9895f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:29:58, skipping insertion in model container [2022-12-14 06:29:58,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:29:50" (2/3) ... [2022-12-14 06:29:58,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de9895f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:29:58, skipping insertion in model container [2022-12-14 06:29:58,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:29:58" (3/3) ... [2022-12-14 06:29:58,533 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i [2022-12-14 06:29:58,547 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:29:58,548 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-14 06:29:58,612 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:29:58,616 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;@6bec4733, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:29:58,616 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-14 06:29:58,623 INFO L276 IsEmpty]: Start isEmpty. Operand has 1346 states, 868 states have (on average 1.3997695852534562) internal successors, (1215), 871 states have internal predecessors, (1215), 403 states have call successors, (403), 73 states have call predecessors, (403), 72 states have return successors, (396), 396 states have call predecessors, (396), 396 states have call successors, (396) [2022-12-14 06:29:58,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-12-14 06:29:58,637 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:29:58,638 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 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] [2022-12-14 06:29:58,638 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:29:58,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:29:58,642 INFO L85 PathProgramCache]: Analyzing trace with hash 906667413, now seen corresponding path program 1 times [2022-12-14 06:29:58,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:29:58,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654322358] [2022-12-14 06:29:58,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:29:58,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:29:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:29:59,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1125 trivial. 0 not checked. [2022-12-14 06:29:59,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:29:59,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654322358] [2022-12-14 06:29:59,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654322358] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:29:59,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:29:59,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:29:59,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746117173] [2022-12-14 06:29:59,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:29:59,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:29:59,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:29:59,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:29:59,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:29:59,281 INFO L87 Difference]: Start difference. First operand has 1346 states, 868 states have (on average 1.3997695852534562) internal successors, (1215), 871 states have internal predecessors, (1215), 403 states have call successors, (403), 73 states have call predecessors, (403), 72 states have return successors, (396), 396 states have call predecessors, (396), 396 states have call successors, (396) 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, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-12-14 06:30:00,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:30:00,867 INFO L93 Difference]: Finished difference Result 3887 states and 5869 transitions. [2022-12-14 06:30:00,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:30:00,869 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, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 195 [2022-12-14 06:30:00,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:30:00,890 INFO L225 Difference]: With dead ends: 3887 [2022-12-14 06:30:00,891 INFO L226 Difference]: Without dead ends: 2565 [2022-12-14 06:30:00,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:30:00,902 INFO L413 NwaCegarLoop]: 2096 mSDtfsCounter, 1868 mSDsluCounter, 1709 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1868 SdHoareTripleChecker+Valid, 3805 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:30:00,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1868 Valid, 3805 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 06:30:00,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2565 states. [2022-12-14 06:30:01,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2565 to 2561. [2022-12-14 06:30:01,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2561 states, 1677 states have (on average 1.3977340488968395) internal successors, (2344), 1682 states have internal predecessors, (2344), 741 states have call successors, (741), 141 states have call predecessors, (741), 140 states have return successors, (737), 737 states have call predecessors, (737), 737 states have call successors, (737) [2022-12-14 06:30:01,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2561 states to 2561 states and 3822 transitions. [2022-12-14 06:30:01,052 INFO L78 Accepts]: Start accepts. Automaton has 2561 states and 3822 transitions. Word has length 195 [2022-12-14 06:30:01,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:30:01,052 INFO L495 AbstractCegarLoop]: Abstraction has 2561 states and 3822 transitions. [2022-12-14 06:30:01,053 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, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-12-14 06:30:01,053 INFO L276 IsEmpty]: Start isEmpty. Operand 2561 states and 3822 transitions. [2022-12-14 06:30:01,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-12-14 06:30:01,057 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:30:01,057 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:30:01,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:30:01,058 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:30:01,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:30:01,058 INFO L85 PathProgramCache]: Analyzing trace with hash -132285176, now seen corresponding path program 1 times [2022-12-14 06:30:01,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:30:01,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520334973] [2022-12-14 06:30:01,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:30:01,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:30:01,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:30:01,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2022-12-14 06:30:01,290 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:30:01,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520334973] [2022-12-14 06:30:01,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520334973] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:30:01,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:30:01,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:30:01,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661784860] [2022-12-14 06:30:01,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:30:01,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:30:01,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:30:01,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:30:01,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:30:01,293 INFO L87 Difference]: Start difference. First operand 2561 states and 3822 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-12-14 06:30:03,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:30:05,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:30:06,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:30:06,114 INFO L93 Difference]: Finished difference Result 6140 states and 9119 transitions. [2022-12-14 06:30:06,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:30:06,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 203 [2022-12-14 06:30:06,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:30:06,136 INFO L225 Difference]: With dead ends: 6140 [2022-12-14 06:30:06,136 INFO L226 Difference]: Without dead ends: 3614 [2022-12-14 06:30:06,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:30:06,144 INFO L413 NwaCegarLoop]: 2155 mSDtfsCounter, 1712 mSDsluCounter, 1689 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1712 SdHoareTripleChecker+Valid, 3844 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-12-14 06:30:06,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1712 Valid, 3844 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-12-14 06:30:06,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3614 states. [2022-12-14 06:30:06,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3614 to 3587. [2022-12-14 06:30:06,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3587 states, 2333 states have (on average 1.3819117016716673) internal successors, (3224), 2343 states have internal predecessors, (3224), 1042 states have call successors, (1042), 210 states have call predecessors, (1042), 209 states have return successors, (1038), 1033 states have call predecessors, (1038), 1038 states have call successors, (1038) [2022-12-14 06:30:06,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3587 states to 3587 states and 5304 transitions. [2022-12-14 06:30:06,281 INFO L78 Accepts]: Start accepts. Automaton has 3587 states and 5304 transitions. Word has length 203 [2022-12-14 06:30:06,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:30:06,281 INFO L495 AbstractCegarLoop]: Abstraction has 3587 states and 5304 transitions. [2022-12-14 06:30:06,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-12-14 06:30:06,282 INFO L276 IsEmpty]: Start isEmpty. Operand 3587 states and 5304 transitions. [2022-12-14 06:30:06,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-12-14 06:30:06,287 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:30:06,287 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:30:06,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 06:30:06,287 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:30:06,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:30:06,288 INFO L85 PathProgramCache]: Analyzing trace with hash -328778589, now seen corresponding path program 1 times [2022-12-14 06:30:06,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:30:06,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672630695] [2022-12-14 06:30:06,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:30:06,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:30:06,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:30:06,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1270 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1270 trivial. 0 not checked. [2022-12-14 06:30:06,805 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:30:06,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672630695] [2022-12-14 06:30:06,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672630695] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:30:06,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:30:06,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:30:06,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429395409] [2022-12-14 06:30:06,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:30:06,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:30:06,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:30:06,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:30:06,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:30:06,808 INFO L87 Difference]: Start difference. First operand 3587 states and 5304 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 06:30:09,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:30:10,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:30:10,627 INFO L93 Difference]: Finished difference Result 7006 states and 10358 transitions. [2022-12-14 06:30:10,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:30:10,627 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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 238 [2022-12-14 06:30:10,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:30:10,655 INFO L225 Difference]: With dead ends: 7006 [2022-12-14 06:30:10,656 INFO L226 Difference]: Without dead ends: 7004 [2022-12-14 06:30:10,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:30:10,660 INFO L413 NwaCegarLoop]: 2163 mSDtfsCounter, 1891 mSDsluCounter, 5990 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1902 SdHoareTripleChecker+Valid, 8153 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 06:30:10,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1902 Valid, 8153 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1089 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 06:30:10,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7004 states. [2022-12-14 06:30:10,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7004 to 6998. [2022-12-14 06:30:10,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6998 states, 4552 states have (on average 1.383347978910369) internal successors, (6297), 4570 states have internal predecessors, (6297), 2032 states have call successors, (2032), 413 states have call predecessors, (2032), 411 states have return successors, (2024), 2014 states have call predecessors, (2024), 2024 states have call successors, (2024) [2022-12-14 06:30:10,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6998 states to 6998 states and 10353 transitions. [2022-12-14 06:30:10,884 INFO L78 Accepts]: Start accepts. Automaton has 6998 states and 10353 transitions. Word has length 238 [2022-12-14 06:30:10,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:30:10,884 INFO L495 AbstractCegarLoop]: Abstraction has 6998 states and 10353 transitions. [2022-12-14 06:30:10,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 06:30:10,885 INFO L276 IsEmpty]: Start isEmpty. Operand 6998 states and 10353 transitions. [2022-12-14 06:30:10,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-12-14 06:30:10,889 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:30:10,889 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:30:10,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 06:30:10,889 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:30:10,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:30:10,889 INFO L85 PathProgramCache]: Analyzing trace with hash -147505314, now seen corresponding path program 1 times [2022-12-14 06:30:10,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:30:10,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416156514] [2022-12-14 06:30:10,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:30:10,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:30:10,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:30:11,383 INFO L134 CoverageAnalysis]: Checked inductivity of 1272 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1270 trivial. 0 not checked. [2022-12-14 06:30:11,383 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:30:11,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416156514] [2022-12-14 06:30:11,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416156514] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:30:11,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:30:11,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:30:11,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381587449] [2022-12-14 06:30:11,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:30:11,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:30:11,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:30:11,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:30:11,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:30:11,385 INFO L87 Difference]: Start difference. First operand 6998 states and 10353 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 06:30:13,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:30:14,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:30:14,662 INFO L93 Difference]: Finished difference Result 7008 states and 10362 transitions. [2022-12-14 06:30:14,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:30:14,663 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 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 243 [2022-12-14 06:30:14,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:30:14,686 INFO L225 Difference]: With dead ends: 7008 [2022-12-14 06:30:14,686 INFO L226 Difference]: Without dead ends: 7006 [2022-12-14 06:30:14,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:30:14,691 INFO L413 NwaCegarLoop]: 1727 mSDtfsCounter, 1915 mSDsluCounter, 3435 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1925 SdHoareTripleChecker+Valid, 5162 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:30:14,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1925 Valid, 5162 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-12-14 06:30:14,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7006 states. [2022-12-14 06:30:14,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7006 to 7006. [2022-12-14 06:30:14,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7006 states, 4558 states have (on average 1.3828433523475208) internal successors, (6303), 4576 states have internal predecessors, (6303), 2032 states have call successors, (2032), 415 states have call predecessors, (2032), 413 states have return successors, (2024), 2014 states have call predecessors, (2024), 2024 states have call successors, (2024) [2022-12-14 06:30:14,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7006 states to 7006 states and 10359 transitions. [2022-12-14 06:30:14,962 INFO L78 Accepts]: Start accepts. Automaton has 7006 states and 10359 transitions. Word has length 243 [2022-12-14 06:30:14,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:30:14,963 INFO L495 AbstractCegarLoop]: Abstraction has 7006 states and 10359 transitions. [2022-12-14 06:30:14,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 06:30:14,963 INFO L276 IsEmpty]: Start isEmpty. Operand 7006 states and 10359 transitions. [2022-12-14 06:30:14,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-12-14 06:30:14,967 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:30:14,968 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:30:14,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 06:30:14,968 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:30:14,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:30:14,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1533864046, now seen corresponding path program 1 times [2022-12-14 06:30:14,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:30:14,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379681580] [2022-12-14 06:30:14,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:30:14,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:30:15,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:30:15,341 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1269 trivial. 0 not checked. [2022-12-14 06:30:15,341 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:30:15,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379681580] [2022-12-14 06:30:15,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379681580] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:30:15,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:30:15,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:30:15,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129799217] [2022-12-14 06:30:15,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:30:15,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:30:15,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:30:15,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:30:15,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:30:15,344 INFO L87 Difference]: Start difference. First operand 7006 states and 10359 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) [2022-12-14 06:30:17,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:30:17,284 INFO L93 Difference]: Finished difference Result 7016 states and 10368 transitions. [2022-12-14 06:30:17,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:30:17,285 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 247 [2022-12-14 06:30:17,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:30:17,319 INFO L225 Difference]: With dead ends: 7016 [2022-12-14 06:30:17,319 INFO L226 Difference]: Without dead ends: 7014 [2022-12-14 06:30:17,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:30:17,323 INFO L413 NwaCegarLoop]: 1727 mSDtfsCounter, 1916 mSDsluCounter, 3435 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1925 SdHoareTripleChecker+Valid, 5162 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 06:30:17,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1925 Valid, 5162 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 06:30:17,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7014 states. [2022-12-14 06:30:17,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7014 to 7014. [2022-12-14 06:30:17,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7014 states, 4564 states have (on average 1.3823400525854515) internal successors, (6309), 4582 states have internal predecessors, (6309), 2032 states have call successors, (2032), 417 states have call predecessors, (2032), 415 states have return successors, (2024), 2014 states have call predecessors, (2024), 2024 states have call successors, (2024) [2022-12-14 06:30:17,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7014 states to 7014 states and 10365 transitions. [2022-12-14 06:30:17,592 INFO L78 Accepts]: Start accepts. Automaton has 7014 states and 10365 transitions. Word has length 247 [2022-12-14 06:30:17,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:30:17,592 INFO L495 AbstractCegarLoop]: Abstraction has 7014 states and 10365 transitions. [2022-12-14 06:30:17,593 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) [2022-12-14 06:30:17,593 INFO L276 IsEmpty]: Start isEmpty. Operand 7014 states and 10365 transitions. [2022-12-14 06:30:17,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-12-14 06:30:17,599 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:30:17,599 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:30:17,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 06:30:17,599 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:30:17,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:30:17,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1252289011, now seen corresponding path program 1 times [2022-12-14 06:30:17,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:30:17,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654815550] [2022-12-14 06:30:17,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:30:17,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:30:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:30:18,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1283 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1277 trivial. 0 not checked. [2022-12-14 06:30:18,006 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:30:18,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654815550] [2022-12-14 06:30:18,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654815550] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:30:18,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:30:18,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:30:18,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632739944] [2022-12-14 06:30:18,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:30:18,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:30:18,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:30:18,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:30:18,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:30:18,008 INFO L87 Difference]: Start difference. First operand 7014 states and 10365 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) [2022-12-14 06:30:20,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:30:21,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:30:21,563 INFO L93 Difference]: Finished difference Result 7024 states and 10374 transitions. [2022-12-14 06:30:21,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:30:21,564 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 252 [2022-12-14 06:30:21,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:30:21,586 INFO L225 Difference]: With dead ends: 7024 [2022-12-14 06:30:21,586 INFO L226 Difference]: Without dead ends: 7022 [2022-12-14 06:30:21,589 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 [2022-12-14 06:30:21,589 INFO L413 NwaCegarLoop]: 1727 mSDtfsCounter, 1916 mSDsluCounter, 3435 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1924 SdHoareTripleChecker+Valid, 5162 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:30:21,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1924 Valid, 5162 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-12-14 06:30:21,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7022 states. [2022-12-14 06:30:21,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7022 to 7022. [2022-12-14 06:30:21,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7022 states, 4570 states have (on average 1.3818380743982495) internal successors, (6315), 4588 states have internal predecessors, (6315), 2032 states have call successors, (2032), 419 states have call predecessors, (2032), 417 states have return successors, (2024), 2014 states have call predecessors, (2024), 2024 states have call successors, (2024) [2022-12-14 06:30:21,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7022 states to 7022 states and 10371 transitions. [2022-12-14 06:30:21,922 INFO L78 Accepts]: Start accepts. Automaton has 7022 states and 10371 transitions. Word has length 252 [2022-12-14 06:30:21,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:30:21,922 INFO L495 AbstractCegarLoop]: Abstraction has 7022 states and 10371 transitions. [2022-12-14 06:30:21,923 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) [2022-12-14 06:30:21,923 INFO L276 IsEmpty]: Start isEmpty. Operand 7022 states and 10371 transitions. [2022-12-14 06:30:21,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-12-14 06:30:21,928 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:30:21,928 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:30:21,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 06:30:21,928 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:30:21,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:30:21,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1241983822, now seen corresponding path program 1 times [2022-12-14 06:30:21,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:30:21,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687447615] [2022-12-14 06:30:21,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:30:21,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:30:21,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:30:22,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1297 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1289 trivial. 0 not checked. [2022-12-14 06:30:22,294 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:30:22,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687447615] [2022-12-14 06:30:22,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687447615] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:30:22,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:30:22,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:30:22,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212032913] [2022-12-14 06:30:22,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:30:22,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:30:22,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:30:22,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:30:22,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:30:22,296 INFO L87 Difference]: Start difference. First operand 7022 states and 10371 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, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 06:30:24,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:30:24,566 INFO L93 Difference]: Finished difference Result 7032 states and 10380 transitions. [2022-12-14 06:30:24,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:30:24,566 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, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 257 [2022-12-14 06:30:24,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:30:24,583 INFO L225 Difference]: With dead ends: 7032 [2022-12-14 06:30:24,583 INFO L226 Difference]: Without dead ends: 7030 [2022-12-14 06:30:24,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:30:24,586 INFO L413 NwaCegarLoop]: 1727 mSDtfsCounter, 1916 mSDsluCounter, 3435 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1923 SdHoareTripleChecker+Valid, 5162 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:30:24,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1923 Valid, 5162 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-12-14 06:30:24,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7030 states. [2022-12-14 06:30:24,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7030 to 7030. [2022-12-14 06:30:24,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7030 states, 4576 states have (on average 1.3813374125874125) internal successors, (6321), 4594 states have internal predecessors, (6321), 2032 states have call successors, (2032), 421 states have call predecessors, (2032), 419 states have return successors, (2024), 2014 states have call predecessors, (2024), 2024 states have call successors, (2024) [2022-12-14 06:30:24,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7030 states to 7030 states and 10377 transitions. [2022-12-14 06:30:24,856 INFO L78 Accepts]: Start accepts. Automaton has 7030 states and 10377 transitions. Word has length 257 [2022-12-14 06:30:24,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:30:24,856 INFO L495 AbstractCegarLoop]: Abstraction has 7030 states and 10377 transitions. [2022-12-14 06:30:24,856 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, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 06:30:24,856 INFO L276 IsEmpty]: Start isEmpty. Operand 7030 states and 10377 transitions. [2022-12-14 06:30:24,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-12-14 06:30:24,862 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:30:24,863 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 6, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:30:24,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 06:30:24,863 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:30:24,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:30:24,863 INFO L85 PathProgramCache]: Analyzing trace with hash -953625314, now seen corresponding path program 1 times [2022-12-14 06:30:24,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:30:24,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102856059] [2022-12-14 06:30:24,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:30:24,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:30:24,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:30:25,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1320 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1310 trivial. 0 not checked. [2022-12-14 06:30:25,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:30:25,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102856059] [2022-12-14 06:30:25,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102856059] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:30:25,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:30:25,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:30:25,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682575354] [2022-12-14 06:30:25,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:30:25,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:30:25,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:30:25,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:30:25,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:30:25,234 INFO L87 Difference]: Start difference. First operand 7030 states and 10377 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 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) [2022-12-14 06:30:27,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:30:29,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:30:29,034 INFO L93 Difference]: Finished difference Result 7042 states and 10385 transitions. [2022-12-14 06:30:29,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:30:29,035 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 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 263 [2022-12-14 06:30:29,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:30:29,052 INFO L225 Difference]: With dead ends: 7042 [2022-12-14 06:30:29,052 INFO L226 Difference]: Without dead ends: 7040 [2022-12-14 06:30:29,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:30:29,055 INFO L413 NwaCegarLoop]: 2166 mSDtfsCounter, 1886 mSDsluCounter, 5990 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1892 SdHoareTripleChecker+Valid, 8156 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-14 06:30:29,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1892 Valid, 8156 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1089 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-12-14 06:30:29,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7040 states. [2022-12-14 06:30:29,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7040 to 7034. [2022-12-14 06:30:29,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7034 states, 4579 states have (on average 1.3810875737060493) internal successors, (6324), 4597 states have internal predecessors, (6324), 2032 states have call successors, (2032), 422 states have call predecessors, (2032), 420 states have return successors, (2024), 2014 states have call predecessors, (2024), 2024 states have call successors, (2024) [2022-12-14 06:30:29,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7034 states to 7034 states and 10380 transitions. [2022-12-14 06:30:29,366 INFO L78 Accepts]: Start accepts. Automaton has 7034 states and 10380 transitions. Word has length 263 [2022-12-14 06:30:29,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:30:29,367 INFO L495 AbstractCegarLoop]: Abstraction has 7034 states and 10380 transitions. [2022-12-14 06:30:29,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 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) [2022-12-14 06:30:29,367 INFO L276 IsEmpty]: Start isEmpty. Operand 7034 states and 10380 transitions. [2022-12-14 06:30:29,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-12-14 06:30:29,373 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:30:29,373 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:30:29,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 06:30:29,374 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:30:29,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:30:29,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1597700562, now seen corresponding path program 1 times [2022-12-14 06:30:29,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:30:29,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038616369] [2022-12-14 06:30:29,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:30:29,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:30:29,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:30:29,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1337 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1325 trivial. 0 not checked. [2022-12-14 06:30:29,756 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:30:29,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038616369] [2022-12-14 06:30:29,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038616369] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:30:29,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:30:29,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:30:29,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375828798] [2022-12-14 06:30:29,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:30:29,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:30:29,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:30:29,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:30:29,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:30:29,758 INFO L87 Difference]: Start difference. First operand 7034 states and 10380 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, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 06:30:31,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:30:31,860 INFO L93 Difference]: Finished difference Result 7044 states and 10389 transitions. [2022-12-14 06:30:31,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:30:31,861 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, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 267 [2022-12-14 06:30:31,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:30:31,878 INFO L225 Difference]: With dead ends: 7044 [2022-12-14 06:30:31,878 INFO L226 Difference]: Without dead ends: 7042 [2022-12-14 06:30:31,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:30:31,881 INFO L413 NwaCegarLoop]: 1727 mSDtfsCounter, 1916 mSDsluCounter, 3435 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1921 SdHoareTripleChecker+Valid, 5162 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 06:30:31,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1921 Valid, 5162 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 06:30:31,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7042 states. [2022-12-14 06:30:32,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7042 to 7042. [2022-12-14 06:30:32,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7042 states, 4585 states have (on average 1.3805888767720829) internal successors, (6330), 4603 states have internal predecessors, (6330), 2032 states have call successors, (2032), 424 states have call predecessors, (2032), 422 states have return successors, (2024), 2014 states have call predecessors, (2024), 2024 states have call successors, (2024) [2022-12-14 06:30:32,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7042 states to 7042 states and 10386 transitions. [2022-12-14 06:30:32,183 INFO L78 Accepts]: Start accepts. Automaton has 7042 states and 10386 transitions. Word has length 267 [2022-12-14 06:30:32,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:30:32,183 INFO L495 AbstractCegarLoop]: Abstraction has 7042 states and 10386 transitions. [2022-12-14 06:30:32,183 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, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 06:30:32,183 INFO L276 IsEmpty]: Start isEmpty. Operand 7042 states and 10386 transitions. [2022-12-14 06:30:32,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-12-14 06:30:32,190 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:30:32,190 INFO L195 NwaCegarLoop]: trace histogram [22, 17, 17, 17, 17, 17, 17, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:30:32,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 06:30:32,191 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:30:32,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:30:32,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1998581530, now seen corresponding path program 1 times [2022-12-14 06:30:32,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:30:32,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366659457] [2022-12-14 06:30:32,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:30:32,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:30:32,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:30:32,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1304 trivial. 0 not checked. [2022-12-14 06:30:32,342 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:30:32,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366659457] [2022-12-14 06:30:32,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366659457] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:30:32,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:30:32,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:30:32,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284029814] [2022-12-14 06:30:32,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:30:32,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:30:32,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:30:32,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:30:32,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:30:32,344 INFO L87 Difference]: Start difference. First operand 7042 states and 10386 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-12-14 06:30:35,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:30:36,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:30:36,515 INFO L93 Difference]: Finished difference Result 14303 states and 21081 transitions. [2022-12-14 06:30:36,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:30:36,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 263 [2022-12-14 06:30:36,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:30:36,543 INFO L225 Difference]: With dead ends: 14303 [2022-12-14 06:30:36,543 INFO L226 Difference]: Without dead ends: 9432 [2022-12-14 06:30:36,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:30:36,561 INFO L413 NwaCegarLoop]: 3246 mSDtfsCounter, 1762 mSDsluCounter, 1687 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1762 SdHoareTripleChecker+Valid, 4933 SdHoareTripleChecker+Invalid, 760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-12-14 06:30:36,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1762 Valid, 4933 Invalid, 760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 755 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-12-14 06:30:36,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9432 states. [2022-12-14 06:30:37,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9432 to 9336. [2022-12-14 06:30:37,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9336 states, 6086 states have (on average 1.3836674334538284) internal successors, (8421), 6114 states have internal predecessors, (8421), 2685 states have call successors, (2685), 564 states have call predecessors, (2685), 562 states have return successors, (2677), 2657 states have call predecessors, (2677), 2677 states have call successors, (2677) [2022-12-14 06:30:37,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9336 states to 9336 states and 13783 transitions. [2022-12-14 06:30:37,051 INFO L78 Accepts]: Start accepts. Automaton has 9336 states and 13783 transitions. Word has length 263 [2022-12-14 06:30:37,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:30:37,052 INFO L495 AbstractCegarLoop]: Abstraction has 9336 states and 13783 transitions. [2022-12-14 06:30:37,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-12-14 06:30:37,052 INFO L276 IsEmpty]: Start isEmpty. Operand 9336 states and 13783 transitions. [2022-12-14 06:30:37,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-12-14 06:30:37,060 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:30:37,060 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 8, 7, 7, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:30:37,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 06:30:37,061 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:30:37,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:30:37,061 INFO L85 PathProgramCache]: Analyzing trace with hash 21530451, now seen corresponding path program 1 times [2022-12-14 06:30:37,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:30:37,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118843645] [2022-12-14 06:30:37,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:30:37,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:30:37,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:30:37,435 INFO L134 CoverageAnalysis]: Checked inductivity of 1369 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1355 trivial. 0 not checked. [2022-12-14 06:30:37,435 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:30:37,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118843645] [2022-12-14 06:30:37,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118843645] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:30:37,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:30:37,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:30:37,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271653301] [2022-12-14 06:30:37,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:30:37,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:30:37,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:30:37,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:30:37,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:30:37,437 INFO L87 Difference]: Start difference. First operand 9336 states and 13783 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 06:30:39,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:30:41,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:30:41,367 INFO L93 Difference]: Finished difference Result 9348 states and 13791 transitions. [2022-12-14 06:30:41,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:30:41,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 274 [2022-12-14 06:30:41,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:30:41,385 INFO L225 Difference]: With dead ends: 9348 [2022-12-14 06:30:41,385 INFO L226 Difference]: Without dead ends: 9346 [2022-12-14 06:30:41,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:30:41,388 INFO L413 NwaCegarLoop]: 2166 mSDtfsCounter, 1886 mSDsluCounter, 5990 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1890 SdHoareTripleChecker+Valid, 8156 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-14 06:30:41,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1890 Valid, 8156 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1089 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-12-14 06:30:41,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9346 states. [2022-12-14 06:30:41,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9346 to 9340. [2022-12-14 06:30:41,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9340 states, 6089 states have (on average 1.383478403678765) internal successors, (8424), 6117 states have internal predecessors, (8424), 2685 states have call successors, (2685), 565 states have call predecessors, (2685), 563 states have return successors, (2677), 2657 states have call predecessors, (2677), 2677 states have call successors, (2677) [2022-12-14 06:30:41,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9340 states to 9340 states and 13786 transitions. [2022-12-14 06:30:41,769 INFO L78 Accepts]: Start accepts. Automaton has 9340 states and 13786 transitions. Word has length 274 [2022-12-14 06:30:41,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:30:41,770 INFO L495 AbstractCegarLoop]: Abstraction has 9340 states and 13786 transitions. [2022-12-14 06:30:41,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 06:30:41,770 INFO L276 IsEmpty]: Start isEmpty. Operand 9340 states and 13786 transitions. [2022-12-14 06:30:41,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-12-14 06:30:41,778 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:30:41,778 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 9, 8, 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:30:41,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 06:30:41,778 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:30:41,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:30:41,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1710720754, now seen corresponding path program 1 times [2022-12-14 06:30:41,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:30:41,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920319210] [2022-12-14 06:30:41,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:30:41,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:30:41,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:30:42,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1393 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1377 trivial. 0 not checked. [2022-12-14 06:30:42,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:30:42,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920319210] [2022-12-14 06:30:42,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920319210] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:30:42,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:30:42,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:30:42,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962783760] [2022-12-14 06:30:42,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:30:42,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:30:42,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:30:42,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:30:42,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:30:42,130 INFO L87 Difference]: Start difference. First operand 9340 states and 13786 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, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-14 06:30:43,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:30:43,863 INFO L93 Difference]: Finished difference Result 9350 states and 13795 transitions. [2022-12-14 06:30:43,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:30:43,864 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, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 277 [2022-12-14 06:30:43,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:30:43,882 INFO L225 Difference]: With dead ends: 9350 [2022-12-14 06:30:43,882 INFO L226 Difference]: Without dead ends: 9348 [2022-12-14 06:30:43,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:30:43,885 INFO L413 NwaCegarLoop]: 1727 mSDtfsCounter, 1916 mSDsluCounter, 3435 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1919 SdHoareTripleChecker+Valid, 5162 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:30:43,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1919 Valid, 5162 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 06:30:43,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9348 states. [2022-12-14 06:30:44,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9348 to 9348. [2022-12-14 06:30:44,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9348 states, 6095 states have (on average 1.383100902378999) internal successors, (8430), 6123 states have internal predecessors, (8430), 2685 states have call successors, (2685), 567 states have call predecessors, (2685), 565 states have return successors, (2677), 2657 states have call predecessors, (2677), 2677 states have call successors, (2677) [2022-12-14 06:30:44,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9348 states to 9348 states and 13792 transitions. [2022-12-14 06:30:44,300 INFO L78 Accepts]: Start accepts. Automaton has 9348 states and 13792 transitions. Word has length 277 [2022-12-14 06:30:44,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:30:44,300 INFO L495 AbstractCegarLoop]: Abstraction has 9348 states and 13792 transitions. [2022-12-14 06:30:44,300 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, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-14 06:30:44,300 INFO L276 IsEmpty]: Start isEmpty. Operand 9348 states and 13792 transitions. [2022-12-14 06:30:44,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-12-14 06:30:44,307 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:30:44,307 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 10, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:30:44,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 06:30:44,307 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:30:44,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:30:44,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1065825325, now seen corresponding path program 1 times [2022-12-14 06:30:44,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:30:44,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979264932] [2022-12-14 06:30:44,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:30:44,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:30:44,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:30:44,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1427 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1409 trivial. 0 not checked. [2022-12-14 06:30:44,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:30:44,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979264932] [2022-12-14 06:30:44,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979264932] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:30:44,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:30:44,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:30:44,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596036531] [2022-12-14 06:30:44,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:30:44,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:30:44,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:30:44,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:30:44,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:30:44,597 INFO L87 Difference]: Start difference. First operand 9348 states and 13792 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, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 06:30:46,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:30:48,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:30:48,760 INFO L93 Difference]: Finished difference Result 13339 states and 19662 transitions. [2022-12-14 06:30:48,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:30:48,761 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, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 282 [2022-12-14 06:30:48,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:30:48,800 INFO L225 Difference]: With dead ends: 13339 [2022-12-14 06:30:48,801 INFO L226 Difference]: Without dead ends: 13337 [2022-12-14 06:30:48,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:30:48,806 INFO L413 NwaCegarLoop]: 2132 mSDtfsCounter, 1839 mSDsluCounter, 5784 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1841 SdHoareTripleChecker+Valid, 7916 SdHoareTripleChecker+Invalid, 1085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-14 06:30:48,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1841 Valid, 7916 Invalid, 1085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1081 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-12-14 06:30:48,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13337 states. [2022-12-14 06:30:49,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13337 to 13329. [2022-12-14 06:30:49,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13329 states, 8683 states have (on average 1.3825866635955315) internal successors, (12005), 8726 states have internal predecessors, (12005), 3820 states have call successors, (3820), 835 states have call predecessors, (3820), 823 states have return successors, (3828), 3767 states have call predecessors, (3828), 3808 states have call successors, (3828) [2022-12-14 06:30:49,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13329 states to 13329 states and 19653 transitions. [2022-12-14 06:30:49,392 INFO L78 Accepts]: Start accepts. Automaton has 13329 states and 19653 transitions. Word has length 282 [2022-12-14 06:30:49,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:30:49,393 INFO L495 AbstractCegarLoop]: Abstraction has 13329 states and 19653 transitions. [2022-12-14 06:30:49,393 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, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 06:30:49,393 INFO L276 IsEmpty]: Start isEmpty. Operand 13329 states and 19653 transitions. [2022-12-14 06:30:49,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-12-14 06:30:49,400 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:30:49,400 INFO L195 NwaCegarLoop]: trace histogram [23, 17, 17, 17, 17, 17, 17, 5, 5, 3, 3, 3, 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] [2022-12-14 06:30:49,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 06:30:49,401 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:30:49,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:30:49,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1999479673, now seen corresponding path program 1 times [2022-12-14 06:30:49,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:30:49,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996012572] [2022-12-14 06:30:49,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:30:49,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:30:49,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:30:49,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1365 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1357 trivial. 0 not checked. [2022-12-14 06:30:49,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:30:49,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996012572] [2022-12-14 06:30:49,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996012572] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:30:49,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:30:49,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:30:49,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138086867] [2022-12-14 06:30:49,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:30:49,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:30:49,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:30:49,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:30:49,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:30:49,759 INFO L87 Difference]: Start difference. First operand 13329 states and 19653 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-12-14 06:30:51,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:30:53,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:30:53,238 INFO L93 Difference]: Finished difference Result 33168 states and 48950 transitions. [2022-12-14 06:30:53,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:30:53,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 286 [2022-12-14 06:30:53,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:30:53,290 INFO L225 Difference]: With dead ends: 33168 [2022-12-14 06:30:53,290 INFO L226 Difference]: Without dead ends: 19874 [2022-12-14 06:30:53,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:30:53,325 INFO L413 NwaCegarLoop]: 2091 mSDtfsCounter, 1636 mSDsluCounter, 1709 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1636 SdHoareTripleChecker+Valid, 3800 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-14 06:30:53,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1636 Valid, 3800 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-14 06:30:53,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19874 states. [2022-12-14 06:30:54,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19874 to 19701. [2022-12-14 06:30:54,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19701 states, 12804 states have (on average 1.3863636363636365) internal successors, (17751), 12909 states have internal predecessors, (17751), 5678 states have call successors, (5678), 1233 states have call predecessors, (5678), 1216 states have return successors, (5690), 5558 states have call predecessors, (5690), 5666 states have call successors, (5690) [2022-12-14 06:30:54,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19701 states to 19701 states and 29119 transitions. [2022-12-14 06:30:54,380 INFO L78 Accepts]: Start accepts. Automaton has 19701 states and 29119 transitions. Word has length 286 [2022-12-14 06:30:54,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:30:54,380 INFO L495 AbstractCegarLoop]: Abstraction has 19701 states and 29119 transitions. [2022-12-14 06:30:54,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-12-14 06:30:54,380 INFO L276 IsEmpty]: Start isEmpty. Operand 19701 states and 29119 transitions. [2022-12-14 06:30:54,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-12-14 06:30:54,386 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:30:54,387 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 11, 10, 10, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:30:54,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 06:30:54,387 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:30:54,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:30:54,387 INFO L85 PathProgramCache]: Analyzing trace with hash -2037238845, now seen corresponding path program 1 times [2022-12-14 06:30:54,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:30:54,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504795513] [2022-12-14 06:30:54,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:30:54,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:30:54,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:30:54,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1470 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1450 trivial. 0 not checked. [2022-12-14 06:30:54,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:30:54,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504795513] [2022-12-14 06:30:54,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504795513] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:30:54,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:30:54,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:30:54,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263424170] [2022-12-14 06:30:54,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:30:54,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:30:54,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:30:54,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:30:54,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:30:54,671 INFO L87 Difference]: Start difference. First operand 19701 states and 29119 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-12-14 06:30:57,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:30:57,105 INFO L93 Difference]: Finished difference Result 19715 states and 29132 transitions. [2022-12-14 06:30:57,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:30:57,106 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 288 [2022-12-14 06:30:57,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:30:57,145 INFO L225 Difference]: With dead ends: 19715 [2022-12-14 06:30:57,145 INFO L226 Difference]: Without dead ends: 19711 [2022-12-14 06:30:57,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:30:57,151 INFO L413 NwaCegarLoop]: 1727 mSDtfsCounter, 1915 mSDsluCounter, 3435 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1916 SdHoareTripleChecker+Valid, 5162 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 06:30:57,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1916 Valid, 5162 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 06:30:57,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19711 states. [2022-12-14 06:30:58,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19711 to 19711. [2022-12-14 06:30:58,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19711 states, 12812 states have (on average 1.3860443334374024) internal successors, (17758), 12916 states have internal predecessors, (17758), 5678 states have call successors, (5678), 1236 states have call predecessors, (5678), 1218 states have return successors, (5690), 5558 states have call predecessors, (5690), 5666 states have call successors, (5690) [2022-12-14 06:30:58,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19711 states to 19711 states and 29126 transitions. [2022-12-14 06:30:58,319 INFO L78 Accepts]: Start accepts. Automaton has 19711 states and 29126 transitions. Word has length 288 [2022-12-14 06:30:58,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:30:58,319 INFO L495 AbstractCegarLoop]: Abstraction has 19711 states and 29126 transitions. [2022-12-14 06:30:58,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-12-14 06:30:58,320 INFO L276 IsEmpty]: Start isEmpty. Operand 19711 states and 29126 transitions. [2022-12-14 06:30:58,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2022-12-14 06:30:58,326 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:30:58,327 INFO L195 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:30:58,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 06:30:58,327 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:30:58,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:30:58,327 INFO L85 PathProgramCache]: Analyzing trace with hash -2042675413, now seen corresponding path program 1 times [2022-12-14 06:30:58,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:30:58,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78423994] [2022-12-14 06:30:58,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:30:58,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:30:58,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:30:58,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2022-12-14 06:30:58,539 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:30:58,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78423994] [2022-12-14 06:30:58,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78423994] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:30:58,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:30:58,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:30:58,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853307628] [2022-12-14 06:30:58,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:30:58,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:30:58,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:30:58,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:30:58,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:30:58,541 INFO L87 Difference]: Start difference. First operand 19711 states and 29126 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-14 06:31:01,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:31:02,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:31:04,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:31:06,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:31:08,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:31:08,638 INFO L93 Difference]: Finished difference Result 44508 states and 65658 transitions. [2022-12-14 06:31:08,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:31:08,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 284 [2022-12-14 06:31:08,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:31:08,707 INFO L225 Difference]: With dead ends: 44508 [2022-12-14 06:31:08,707 INFO L226 Difference]: Without dead ends: 25715 [2022-12-14 06:31:08,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:31:08,750 INFO L413 NwaCegarLoop]: 3245 mSDtfsCounter, 1711 mSDsluCounter, 8177 mSDsCounter, 0 mSdLazyCounter, 1672 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1711 SdHoareTripleChecker+Valid, 11422 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1672 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-12-14 06:31:08,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1711 Valid, 11422 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1672 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time] [2022-12-14 06:31:08,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25715 states. [2022-12-14 06:31:10,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25715 to 25526. [2022-12-14 06:31:10,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25526 states, 16554 states have (on average 1.3831702307599372) internal successors, (22897), 16695 states have internal predecessors, (22897), 7379 states have call successors, (7379), 1606 states have call predecessors, (7379), 1590 states have return successors, (7405), 7224 states have call predecessors, (7405), 7367 states have call successors, (7405) [2022-12-14 06:31:10,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25526 states to 25526 states and 37681 transitions. [2022-12-14 06:31:10,237 INFO L78 Accepts]: Start accepts. Automaton has 25526 states and 37681 transitions. Word has length 284 [2022-12-14 06:31:10,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:31:10,237 INFO L495 AbstractCegarLoop]: Abstraction has 25526 states and 37681 transitions. [2022-12-14 06:31:10,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-14 06:31:10,238 INFO L276 IsEmpty]: Start isEmpty. Operand 25526 states and 37681 transitions. [2022-12-14 06:31:10,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-12-14 06:31:10,245 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:31:10,245 INFO L195 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:31:10,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 06:31:10,246 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)] === [2022-12-14 06:31:10,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:31:10,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1788705510, now seen corresponding path program 1 times [2022-12-14 06:31:10,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:31:10,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275948166] [2022-12-14 06:31:10,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:31:10,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:31:10,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:31:10,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2022-12-14 06:31:10,436 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:31:10,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275948166] [2022-12-14 06:31:10,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275948166] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:31:10,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:31:10,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:31:10,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956265555] [2022-12-14 06:31:10,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:31:10,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:31:10,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:31:10,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:31:10,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:31:10,437 INFO L87 Difference]: Start difference. First operand 25526 states and 37681 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-14 06:31:13,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:31:15,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:31:18,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:31:18,341 INFO L93 Difference]: Finished difference Result 56150 states and 82792 transitions. [2022-12-14 06:31:18,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:31:18,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 285 [2022-12-14 06:31:18,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:31:18,422 INFO L225 Difference]: With dead ends: 56150 [2022-12-14 06:31:18,422 INFO L226 Difference]: Without dead ends: 31542 [2022-12-14 06:31:18,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:31:18,475 INFO L413 NwaCegarLoop]: 3250 mSDtfsCounter, 1710 mSDsluCounter, 8187 mSDsCounter, 0 mSdLazyCounter, 1676 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1710 SdHoareTripleChecker+Valid, 11437 SdHoareTripleChecker+Invalid, 1679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1676 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-12-14 06:31:18,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1710 Valid, 11437 Invalid, 1679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1676 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-12-14 06:31:18,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31542 states. [2022-12-14 06:31:19,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31542 to 31353. [2022-12-14 06:31:19,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31353 states, 20308 states have (on average 1.3811305889304708) internal successors, (28048), 20486 states have internal predecessors, (28048), 9080 states have call successors, (9080), 1976 states have call predecessors, (9080), 1962 states have return successors, (9120), 8890 states have call predecessors, (9120), 9068 states have call successors, (9120) [2022-12-14 06:31:20,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31353 states to 31353 states and 46248 transitions. [2022-12-14 06:31:20,038 INFO L78 Accepts]: Start accepts. Automaton has 31353 states and 46248 transitions. Word has length 285 [2022-12-14 06:31:20,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:31:20,038 INFO L495 AbstractCegarLoop]: Abstraction has 31353 states and 46248 transitions. [2022-12-14 06:31:20,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-14 06:31:20,038 INFO L276 IsEmpty]: Start isEmpty. Operand 31353 states and 46248 transitions. [2022-12-14 06:31:20,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2022-12-14 06:31:20,046 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:31:20,047 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 12, 11, 11, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:31:20,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 06:31:20,047 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:31:20,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:31:20,047 INFO L85 PathProgramCache]: Analyzing trace with hash 936095891, now seen corresponding path program 1 times [2022-12-14 06:31:20,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:31:20,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479089368] [2022-12-14 06:31:20,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:31:20,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:31:20,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:31:20,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1513 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1491 trivial. 0 not checked. [2022-12-14 06:31:20,323 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:31:20,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479089368] [2022-12-14 06:31:20,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479089368] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:31:20,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:31:20,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:31:20,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60336798] [2022-12-14 06:31:20,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:31:20,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:31:20,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:31:20,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:31:20,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:31:20,325 INFO L87 Difference]: Start difference. First operand 31353 states and 46248 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-12-14 06:31:23,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:31:23,059 INFO L93 Difference]: Finished difference Result 31363 states and 46257 transitions. [2022-12-14 06:31:23,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:31:23,060 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 294 [2022-12-14 06:31:23,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:31:23,141 INFO L225 Difference]: With dead ends: 31363 [2022-12-14 06:31:23,141 INFO L226 Difference]: Without dead ends: 31180 [2022-12-14 06:31:23,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:31:23,154 INFO L413 NwaCegarLoop]: 1728 mSDtfsCounter, 1915 mSDsluCounter, 3437 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1915 SdHoareTripleChecker+Valid, 5165 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:31:23,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1915 Valid, 5165 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 06:31:23,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31180 states. [2022-12-14 06:31:24,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31180 to 31180. [2022-12-14 06:31:24,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31180 states, 20241 states have (on average 1.3809100340892249) internal successors, (27951), 20390 states have internal predecessors, (27951), 8999 states have call successors, (8999), 1949 states have call predecessors, (8999), 1937 states have return successors, (9043), 8840 states have call predecessors, (9043), 8991 states have call successors, (9043) [2022-12-14 06:31:24,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31180 states to 31180 states and 45993 transitions. [2022-12-14 06:31:24,779 INFO L78 Accepts]: Start accepts. Automaton has 31180 states and 45993 transitions. Word has length 294 [2022-12-14 06:31:24,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:31:24,780 INFO L495 AbstractCegarLoop]: Abstraction has 31180 states and 45993 transitions. [2022-12-14 06:31:24,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-12-14 06:31:24,780 INFO L276 IsEmpty]: Start isEmpty. Operand 31180 states and 45993 transitions. [2022-12-14 06:31:24,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-12-14 06:31:24,787 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:31:24,787 INFO L195 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:31:24,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 06:31:24,788 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:31:24,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:31:24,788 INFO L85 PathProgramCache]: Analyzing trace with hash -2014411870, now seen corresponding path program 1 times [2022-12-14 06:31:24,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:31:24,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326105563] [2022-12-14 06:31:24,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:31:24,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:31:24,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:31:24,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2022-12-14 06:31:24,977 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:31:24,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326105563] [2022-12-14 06:31:24,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326105563] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:31:24,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:31:24,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:31:24,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938423695] [2022-12-14 06:31:24,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:31:24,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:31:24,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:31:24,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:31:24,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:31:24,979 INFO L87 Difference]: Start difference. First operand 31180 states and 45993 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-14 06:31:29,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:31:32,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:31:32,735 INFO L93 Difference]: Finished difference Result 67480 states and 99473 transitions. [2022-12-14 06:31:32,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:31:32,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 286 [2022-12-14 06:31:32,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:31:32,832 INFO L225 Difference]: With dead ends: 67480 [2022-12-14 06:31:32,832 INFO L226 Difference]: Without dead ends: 37218 [2022-12-14 06:31:32,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:31:32,888 INFO L413 NwaCegarLoop]: 3240 mSDtfsCounter, 1718 mSDsluCounter, 8153 mSDsCounter, 0 mSdLazyCounter, 1687 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1718 SdHoareTripleChecker+Valid, 11393 SdHoareTripleChecker+Invalid, 1694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1687 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-12-14 06:31:32,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1718 Valid, 11393 Invalid, 1694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1687 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-12-14 06:31:32,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37218 states. [2022-12-14 06:31:34,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37218 to 37112. [2022-12-14 06:31:34,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37112 states, 24079 states have (on average 1.379210100087213) internal successors, (33210), 24259 states have internal predecessors, (33210), 10708 states have call successors, (10708), 2332 states have call predecessors, (10708), 2322 states have return successors, (10766), 10520 states have call predecessors, (10766), 10700 states have call successors, (10766) [2022-12-14 06:31:35,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37112 states to 37112 states and 54684 transitions. [2022-12-14 06:31:35,076 INFO L78 Accepts]: Start accepts. Automaton has 37112 states and 54684 transitions. Word has length 286 [2022-12-14 06:31:35,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:31:35,076 INFO L495 AbstractCegarLoop]: Abstraction has 37112 states and 54684 transitions. [2022-12-14 06:31:35,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-14 06:31:35,076 INFO L276 IsEmpty]: Start isEmpty. Operand 37112 states and 54684 transitions. [2022-12-14 06:31:35,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-12-14 06:31:35,084 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:31:35,084 INFO L195 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:31:35,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 06:31:35,084 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:31:35,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:31:35,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1248406225, now seen corresponding path program 1 times [2022-12-14 06:31:35,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:31:35,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146440216] [2022-12-14 06:31:35,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:31:35,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:31:35,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:31:35,274 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2022-12-14 06:31:35,274 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:31:35,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146440216] [2022-12-14 06:31:35,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146440216] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:31:35,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:31:35,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:31:35,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552710791] [2022-12-14 06:31:35,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:31:35,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:31:35,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:31:35,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:31:35,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:31:35,276 INFO L87 Difference]: Start difference. First operand 37112 states and 54684 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-14 06:31:37,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:31:40,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:31:42,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:31:45,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:31:45,441 INFO L93 Difference]: Finished difference Result 79245 states and 116727 transitions. [2022-12-14 06:31:45,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:31:45,441 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 287 [2022-12-14 06:31:45,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:31:45,565 INFO L225 Difference]: With dead ends: 79245 [2022-12-14 06:31:45,565 INFO L226 Difference]: Without dead ends: 43051 [2022-12-14 06:31:45,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:31:45,641 INFO L413 NwaCegarLoop]: 3241 mSDtfsCounter, 1709 mSDsluCounter, 8163 mSDsCounter, 0 mSdLazyCounter, 1687 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1709 SdHoareTripleChecker+Valid, 11404 SdHoareTripleChecker+Invalid, 1696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1687 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-12-14 06:31:45,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1709 Valid, 11404 Invalid, 1696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1687 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2022-12-14 06:31:45,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43051 states. [2022-12-14 06:31:47,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43051 to 42945. [2022-12-14 06:31:47,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42945 states, 27853 states have (on average 1.3777690015438193) internal successors, (38375), 28064 states have internal predecessors, (38375), 12397 states have call successors, (12397), 2700 states have call predecessors, (12397), 2692 states have return successors, (12469), 12180 states have call predecessors, (12469), 12389 states have call successors, (12469) [2022-12-14 06:31:47,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42945 states to 42945 states and 63241 transitions. [2022-12-14 06:31:47,977 INFO L78 Accepts]: Start accepts. Automaton has 42945 states and 63241 transitions. Word has length 287 [2022-12-14 06:31:47,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:31:47,977 INFO L495 AbstractCegarLoop]: Abstraction has 42945 states and 63241 transitions. [2022-12-14 06:31:47,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-14 06:31:47,978 INFO L276 IsEmpty]: Start isEmpty. Operand 42945 states and 63241 transitions. [2022-12-14 06:31:47,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-12-14 06:31:47,987 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:31:47,987 INFO L195 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:31:47,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 06:31:47,987 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:31:47,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:31:47,987 INFO L85 PathProgramCache]: Analyzing trace with hash 889497530, now seen corresponding path program 1 times [2022-12-14 06:31:47,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:31:47,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344111096] [2022-12-14 06:31:47,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:31:47,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:31:48,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:31:48,182 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2022-12-14 06:31:48,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:31:48,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344111096] [2022-12-14 06:31:48,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344111096] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:31:48,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:31:48,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:31:48,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924359483] [2022-12-14 06:31:48,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:31:48,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:31:48,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:31:48,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:31:48,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:31:48,183 INFO L87 Difference]: Start difference. First operand 42945 states and 63241 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-14 06:31:51,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:31:54,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:31:54,966 INFO L93 Difference]: Finished difference Result 90856 states and 133764 transitions. [2022-12-14 06:31:54,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:31:54,966 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 288 [2022-12-14 06:31:54,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:31:55,100 INFO L225 Difference]: With dead ends: 90856 [2022-12-14 06:31:55,100 INFO L226 Difference]: Without dead ends: 48829 [2022-12-14 06:31:55,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:31:55,253 INFO L413 NwaCegarLoop]: 3165 mSDtfsCounter, 1618 mSDsluCounter, 8013 mSDsCounter, 0 mSdLazyCounter, 1657 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 11178 SdHoareTripleChecker+Invalid, 1665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1657 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-12-14 06:31:55,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1618 Valid, 11178 Invalid, 1665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1657 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-12-14 06:31:55,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48829 states. [2022-12-14 06:31:57,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48829 to 48723. [2022-12-14 06:31:57,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48723 states, 31591 states have (on average 1.3765945997277707) internal successors, (43488), 31834 states have internal predecessors, (43488), 14071 states have call successors, (14071), 3064 states have call predecessors, (14071), 3058 states have return successors, (14156), 13824 states have call predecessors, (14156), 14063 states have call successors, (14156) [2022-12-14 06:31:57,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48723 states to 48723 states and 71715 transitions. [2022-12-14 06:31:57,815 INFO L78 Accepts]: Start accepts. Automaton has 48723 states and 71715 transitions. Word has length 288 [2022-12-14 06:31:57,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:31:57,815 INFO L495 AbstractCegarLoop]: Abstraction has 48723 states and 71715 transitions. [2022-12-14 06:31:57,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-14 06:31:57,815 INFO L276 IsEmpty]: Start isEmpty. Operand 48723 states and 71715 transitions. [2022-12-14 06:31:57,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-12-14 06:31:57,825 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:31:57,826 INFO L195 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:31:57,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 06:31:57,826 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:31:57,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:31:57,826 INFO L85 PathProgramCache]: Analyzing trace with hash 741746934, now seen corresponding path program 1 times [2022-12-14 06:31:57,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:31:57,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571505510] [2022-12-14 06:31:57,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:31:57,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:31:57,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:31:58,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2022-12-14 06:31:58,019 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:31:58,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571505510] [2022-12-14 06:31:58,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571505510] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:31:58,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:31:58,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:31:58,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783125587] [2022-12-14 06:31:58,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:31:58,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:31:58,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:31:58,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:31:58,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:31:58,021 INFO L87 Difference]: Start difference. First operand 48723 states and 71715 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-14 06:32:00,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:32:02,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:32:04,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:32:08,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:32:08,526 INFO L93 Difference]: Finished difference Result 102479 states and 150813 transitions. [2022-12-14 06:32:08,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:32:08,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 289 [2022-12-14 06:32:08,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:32:08,729 INFO L225 Difference]: With dead ends: 102479 [2022-12-14 06:32:08,729 INFO L226 Difference]: Without dead ends: 54674 [2022-12-14 06:32:08,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:32:08,817 INFO L413 NwaCegarLoop]: 3241 mSDtfsCounter, 1706 mSDsluCounter, 8165 mSDsCounter, 0 mSdLazyCounter, 1695 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1706 SdHoareTripleChecker+Valid, 11406 SdHoareTripleChecker+Invalid, 1704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1695 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-12-14 06:32:08,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1706 Valid, 11406 Invalid, 1704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1695 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2022-12-14 06:32:08,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54674 states. [2022-12-14 06:32:11,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54674 to 54568. [2022-12-14 06:32:11,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54568 states, 35377 states have (on average 1.3756112728608982) internal successors, (48665), 35651 states have internal predecessors, (48665), 15760 states have call successors, (15760), 3432 states have call predecessors, (15760), 3428 states have return successors, (15859), 15484 states have call predecessors, (15859), 15752 states have call successors, (15859) [2022-12-14 06:32:11,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54568 states to 54568 states and 80284 transitions. [2022-12-14 06:32:11,968 INFO L78 Accepts]: Start accepts. Automaton has 54568 states and 80284 transitions. Word has length 289 [2022-12-14 06:32:11,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:32:11,968 INFO L495 AbstractCegarLoop]: Abstraction has 54568 states and 80284 transitions. [2022-12-14 06:32:11,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-14 06:32:11,968 INFO L276 IsEmpty]: Start isEmpty. Operand 54568 states and 80284 transitions. [2022-12-14 06:32:11,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-12-14 06:32:11,980 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:32:11,980 INFO L195 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:32:11,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 06:32:11,980 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:32:11,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:32:11,980 INFO L85 PathProgramCache]: Analyzing trace with hash 169256484, now seen corresponding path program 1 times [2022-12-14 06:32:11,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:32:11,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613524551] [2022-12-14 06:32:11,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:32:11,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:32:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:32:12,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2022-12-14 06:32:12,172 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:32:12,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613524551] [2022-12-14 06:32:12,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613524551] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:32:12,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:32:12,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:32:12,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176605414] [2022-12-14 06:32:12,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:32:12,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:32:12,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:32:12,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:32:12,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:32:12,174 INFO L87 Difference]: Start difference. First operand 54568 states and 80284 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-14 06:32:14,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:32:15,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:32:18,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:32:22,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:32:22,624 INFO L93 Difference]: Finished difference Result 114175 states and 167963 transitions. [2022-12-14 06:32:22,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:32:22,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 290 [2022-12-14 06:32:22,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:32:22,790 INFO L225 Difference]: With dead ends: 114175 [2022-12-14 06:32:22,790 INFO L226 Difference]: Without dead ends: 60525 [2022-12-14 06:32:22,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:32:22,891 INFO L413 NwaCegarLoop]: 3241 mSDtfsCounter, 1706 mSDsluCounter, 8165 mSDsCounter, 0 mSdLazyCounter, 1698 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1706 SdHoareTripleChecker+Valid, 11406 SdHoareTripleChecker+Invalid, 1708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1698 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-12-14 06:32:22,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1706 Valid, 11406 Invalid, 1708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1698 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-12-14 06:32:22,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60525 states. [2022-12-14 06:32:25,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60525 to 60419. [2022-12-14 06:32:25,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60419 states, 39169 states have (on average 1.374760652556869) internal successors, (53848), 39474 states have internal predecessors, (53848), 17449 states have call successors, (17449), 3800 states have call predecessors, (17449), 3798 states have return successors, (17562), 17144 states have call predecessors, (17562), 17441 states have call successors, (17562) [2022-12-14 06:32:26,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60419 states to 60419 states and 88859 transitions. [2022-12-14 06:32:26,042 INFO L78 Accepts]: Start accepts. Automaton has 60419 states and 88859 transitions. Word has length 290 [2022-12-14 06:32:26,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:32:26,043 INFO L495 AbstractCegarLoop]: Abstraction has 60419 states and 88859 transitions. [2022-12-14 06:32:26,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-14 06:32:26,043 INFO L276 IsEmpty]: Start isEmpty. Operand 60419 states and 88859 transitions. [2022-12-14 06:32:26,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-12-14 06:32:26,054 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:32:26,054 INFO L195 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:32:26,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 06:32:26,055 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:32:26,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:32:26,055 INFO L85 PathProgramCache]: Analyzing trace with hash 131528579, now seen corresponding path program 1 times [2022-12-14 06:32:26,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:32:26,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239920193] [2022-12-14 06:32:26,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:32:26,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:32:26,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:32:26,305 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2022-12-14 06:32:26,305 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:32:26,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239920193] [2022-12-14 06:32:26,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239920193] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:32:26,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:32:26,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:32:26,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16467741] [2022-12-14 06:32:26,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:32:26,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:32:26,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:32:26,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:32:26,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:32:26,307 INFO L87 Difference]: Start difference. First operand 60419 states and 88859 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-14 06:32:32,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:32:32,869 INFO L93 Difference]: Finished difference Result 125883 states and 185125 transitions. [2022-12-14 06:32:32,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:32:32,869 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 291 [2022-12-14 06:32:32,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:32:33,052 INFO L225 Difference]: With dead ends: 125883 [2022-12-14 06:32:33,052 INFO L226 Difference]: Without dead ends: 66382 [2022-12-14 06:32:33,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:32:33,171 INFO L413 NwaCegarLoop]: 3241 mSDtfsCounter, 1709 mSDsluCounter, 8163 mSDsCounter, 0 mSdLazyCounter, 1701 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1709 SdHoareTripleChecker+Valid, 11404 SdHoareTripleChecker+Invalid, 1712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:32:33,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1709 Valid, 11404 Invalid, 1712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1701 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-12-14 06:32:33,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66382 states. [2022-12-14 06:32:36,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66382 to 66276. [2022-12-14 06:32:36,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66276 states, 42967 states have (on average 1.3740079595969) internal successors, (59037), 43303 states have internal predecessors, (59037), 19138 states have call successors, (19138), 4168 states have call predecessors, (19138), 4168 states have return successors, (19265), 18804 states have call predecessors, (19265), 19130 states have call successors, (19265) [2022-12-14 06:32:36,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66276 states to 66276 states and 97440 transitions. [2022-12-14 06:32:36,967 INFO L78 Accepts]: Start accepts. Automaton has 66276 states and 97440 transitions. Word has length 291 [2022-12-14 06:32:36,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:32:36,967 INFO L495 AbstractCegarLoop]: Abstraction has 66276 states and 97440 transitions. [2022-12-14 06:32:36,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-14 06:32:36,967 INFO L276 IsEmpty]: Start isEmpty. Operand 66276 states and 97440 transitions. [2022-12-14 06:32:36,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-12-14 06:32:36,981 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:32:36,981 INFO L195 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:32:36,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 06:32:36,981 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:32:36,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:32:36,981 INFO L85 PathProgramCache]: Analyzing trace with hash 52119307, now seen corresponding path program 1 times [2022-12-14 06:32:36,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:32:36,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796883272] [2022-12-14 06:32:36,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:32:36,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:32:37,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:32:37,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2022-12-14 06:32:37,178 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:32:37,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796883272] [2022-12-14 06:32:37,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796883272] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:32:37,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:32:37,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:32:37,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427363657] [2022-12-14 06:32:37,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:32:37,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:32:37,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:32:37,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:32:37,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:32:37,179 INFO L87 Difference]: Start difference. First operand 66276 states and 97440 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-14 06:32:40,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:32:42,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:32:47,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:32:47,675 INFO L93 Difference]: Finished difference Result 137603 states and 202299 transitions. [2022-12-14 06:32:47,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:32:47,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 292 [2022-12-14 06:32:47,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:32:47,873 INFO L225 Difference]: With dead ends: 137603 [2022-12-14 06:32:47,873 INFO L226 Difference]: Without dead ends: 72245 [2022-12-14 06:32:47,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:32:47,995 INFO L413 NwaCegarLoop]: 3217 mSDtfsCounter, 1715 mSDsluCounter, 8110 mSDsCounter, 0 mSdLazyCounter, 1703 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1715 SdHoareTripleChecker+Valid, 11327 SdHoareTripleChecker+Invalid, 1715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-12-14 06:32:47,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1715 Valid, 11327 Invalid, 1715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1703 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2022-12-14 06:32:48,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72245 states. [2022-12-14 06:32:51,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72245 to 72139. [2022-12-14 06:32:51,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72139 states, 46771 states have (on average 1.3733296273331765) internal successors, (64232), 47138 states have internal predecessors, (64232), 20827 states have call successors, (20827), 4536 states have call predecessors, (20827), 4538 states have return successors, (20968), 20464 states have call predecessors, (20968), 20819 states have call successors, (20968) [2022-12-14 06:32:51,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72139 states to 72139 states and 106027 transitions. [2022-12-14 06:32:51,836 INFO L78 Accepts]: Start accepts. Automaton has 72139 states and 106027 transitions. Word has length 292 [2022-12-14 06:32:51,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:32:51,837 INFO L495 AbstractCegarLoop]: Abstraction has 72139 states and 106027 transitions. [2022-12-14 06:32:51,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-14 06:32:51,837 INFO L276 IsEmpty]: Start isEmpty. Operand 72139 states and 106027 transitions. [2022-12-14 06:32:51,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-12-14 06:32:51,850 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:32:51,851 INFO L195 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:32:51,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-14 06:32:51,851 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:32:51,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:32:51,851 INFO L85 PathProgramCache]: Analyzing trace with hash -348335053, now seen corresponding path program 1 times [2022-12-14 06:32:51,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:32:51,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580649425] [2022-12-14 06:32:51,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:32:51,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:32:51,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:32:52,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2022-12-14 06:32:52,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:32:52,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580649425] [2022-12-14 06:32:52,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580649425] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:32:52,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:32:52,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:32:52,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081219660] [2022-12-14 06:32:52,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:32:52,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:32:52,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:32:52,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:32:52,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:32:52,054 INFO L87 Difference]: Start difference. First operand 72139 states and 106027 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-14 06:32:55,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:32:56,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:32:59,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:33:01,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:33:07,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:33:07,070 INFO L93 Difference]: Finished difference Result 149335 states and 219485 transitions. [2022-12-14 06:33:07,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:33:07,070 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 293 [2022-12-14 06:33:07,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:33:07,288 INFO L225 Difference]: With dead ends: 149335 [2022-12-14 06:33:07,288 INFO L226 Difference]: Without dead ends: 78114 [2022-12-14 06:33:07,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:33:07,421 INFO L413 NwaCegarLoop]: 3241 mSDtfsCounter, 1712 mSDsluCounter, 8160 mSDsCounter, 0 mSdLazyCounter, 1701 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1712 SdHoareTripleChecker+Valid, 11401 SdHoareTripleChecker+Invalid, 1717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1701 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-12-14 06:33:07,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1712 Valid, 11401 Invalid, 1717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1701 Invalid, 3 Unknown, 0 Unchecked, 10.8s Time] [2022-12-14 06:33:07,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78114 states. [2022-12-14 06:33:11,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78114 to 78008. [2022-12-14 06:33:11,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78008 states, 50581 states have (on average 1.3727091200253059) internal successors, (69433), 50979 states have internal predecessors, (69433), 22516 states have call successors, (22516), 4904 states have call predecessors, (22516), 4908 states have return successors, (22671), 22124 states have call predecessors, (22671), 22508 states have call successors, (22671) [2022-12-14 06:33:11,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78008 states to 78008 states and 114620 transitions. [2022-12-14 06:33:11,607 INFO L78 Accepts]: Start accepts. Automaton has 78008 states and 114620 transitions. Word has length 293 [2022-12-14 06:33:11,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:33:11,608 INFO L495 AbstractCegarLoop]: Abstraction has 78008 states and 114620 transitions. [2022-12-14 06:33:11,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-14 06:33:11,608 INFO L276 IsEmpty]: Start isEmpty. Operand 78008 states and 114620 transitions. [2022-12-14 06:33:11,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2022-12-14 06:33:11,622 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:33:11,623 INFO L195 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:33:11,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-14 06:33:11,623 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:33:11,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:33:11,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1038392, now seen corresponding path program 1 times [2022-12-14 06:33:11,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:33:11,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779990001] [2022-12-14 06:33:11,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:33:11,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:33:11,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:33:11,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2022-12-14 06:33:11,823 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:33:11,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779990001] [2022-12-14 06:33:11,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779990001] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:33:11,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:33:11,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:33:11,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624789800] [2022-12-14 06:33:11,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:33:11,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:33:11,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:33:11,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:33:11,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:33:11,825 INFO L87 Difference]: Start difference. First operand 78008 states and 114620 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-14 06:33:16,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:33:18,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:33:23,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:33:23,366 INFO L93 Difference]: Finished difference Result 161079 states and 236683 transitions. [2022-12-14 06:33:23,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:33:23,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 294 [2022-12-14 06:33:23,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:33:23,642 INFO L225 Difference]: With dead ends: 161079 [2022-12-14 06:33:23,642 INFO L226 Difference]: Without dead ends: 83989 [2022-12-14 06:33:23,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:33:23,791 INFO L413 NwaCegarLoop]: 3241 mSDtfsCounter, 1709 mSDsluCounter, 8163 mSDsCounter, 0 mSdLazyCounter, 1709 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1709 SdHoareTripleChecker+Valid, 11404 SdHoareTripleChecker+Invalid, 1724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1709 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:33:23,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1709 Valid, 11404 Invalid, 1724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1709 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2022-12-14 06:33:23,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83989 states. [2022-12-14 06:33:28,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83989 to 83883. [2022-12-14 06:33:28,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83883 states, 54397 states have (on average 1.372134492710995) internal successors, (74640), 54826 states have internal predecessors, (74640), 24205 states have call successors, (24205), 5272 states have call predecessors, (24205), 5278 states have return successors, (24374), 23784 states have call predecessors, (24374), 24197 states have call successors, (24374) [2022-12-14 06:33:28,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83883 states to 83883 states and 123219 transitions. [2022-12-14 06:33:28,815 INFO L78 Accepts]: Start accepts. Automaton has 83883 states and 123219 transitions. Word has length 294 [2022-12-14 06:33:28,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:33:28,816 INFO L495 AbstractCegarLoop]: Abstraction has 83883 states and 123219 transitions. [2022-12-14 06:33:28,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-14 06:33:28,816 INFO L276 IsEmpty]: Start isEmpty. Operand 83883 states and 123219 transitions. [2022-12-14 06:33:28,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-12-14 06:33:28,831 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:33:28,832 INFO L195 NwaCegarLoop]: trace histogram [25, 17, 17, 17, 17, 17, 17, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:33:28,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-14 06:33:28,832 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:33:28,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:33:28,832 INFO L85 PathProgramCache]: Analyzing trace with hash -713579171, now seen corresponding path program 1 times [2022-12-14 06:33:28,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:33:28,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159985705] [2022-12-14 06:33:28,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:33:28,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:33:28,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:33:28,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1484 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1462 trivial. 0 not checked. [2022-12-14 06:33:28,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:33:28,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159985705] [2022-12-14 06:33:28,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159985705] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:33:28,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:33:28,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:33:28,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925207625] [2022-12-14 06:33:28,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:33:28,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:33:28,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:33:28,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:33:28,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:33:28,969 INFO L87 Difference]: Start difference. First operand 83883 states and 123219 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-14 06:33:35,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:33:35,909 INFO L93 Difference]: Finished difference Result 172727 states and 253707 transitions. [2022-12-14 06:33:35,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:33:35,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 295 [2022-12-14 06:33:35,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:33:36,165 INFO L225 Difference]: With dead ends: 172727 [2022-12-14 06:33:36,165 INFO L226 Difference]: Without dead ends: 89762 [2022-12-14 06:33:36,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:33:36,327 INFO L413 NwaCegarLoop]: 3266 mSDtfsCounter, 1758 mSDsluCounter, 1683 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1758 SdHoareTripleChecker+Valid, 4949 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-14 06:33:36,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1758 Valid, 4949 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-14 06:33:36,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89762 states. [2022-12-14 06:33:40,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89762 to 89668. [2022-12-14 06:33:40,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89668 states, 58129 states have (on average 1.3721722376094547) internal successors, (79763), 58589 states have internal predecessors, (79763), 25894 states have call successors, (25894), 5640 states have call predecessors, (25894), 5642 states have return successors, (26071), 25438 states have call predecessors, (26071), 25886 states have call successors, (26071) [2022-12-14 06:33:41,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89668 states to 89668 states and 131728 transitions. [2022-12-14 06:33:41,093 INFO L78 Accepts]: Start accepts. Automaton has 89668 states and 131728 transitions. Word has length 295 [2022-12-14 06:33:41,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:33:41,094 INFO L495 AbstractCegarLoop]: Abstraction has 89668 states and 131728 transitions. [2022-12-14 06:33:41,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-14 06:33:41,094 INFO L276 IsEmpty]: Start isEmpty. Operand 89668 states and 131728 transitions. [2022-12-14 06:33:41,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-12-14 06:33:41,111 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:33:41,111 INFO L195 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:33:41,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-14 06:33:41,111 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:33:41,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:33:41,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1329523891, now seen corresponding path program 1 times [2022-12-14 06:33:41,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:33:41,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138567849] [2022-12-14 06:33:41,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:33:41,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:33:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:33:41,654 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1415 trivial. 0 not checked. [2022-12-14 06:33:41,654 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:33:41,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138567849] [2022-12-14 06:33:41,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138567849] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:33:41,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:33:41,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:33:41,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746649772] [2022-12-14 06:33:41,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:33:41,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:33:41,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:33:41,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:33:41,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:33:41,656 INFO L87 Difference]: Start difference. First operand 89668 states and 131728 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 06:33:47,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:33:47,522 INFO L93 Difference]: Finished difference Result 89818 states and 131818 transitions. [2022-12-14 06:33:47,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:33:47,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 295 [2022-12-14 06:33:47,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:33:47,760 INFO L225 Difference]: With dead ends: 89818 [2022-12-14 06:33:47,760 INFO L226 Difference]: Without dead ends: 89816 [2022-12-14 06:33:47,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 06:33:47,787 INFO L413 NwaCegarLoop]: 1718 mSDtfsCounter, 1838 mSDsluCounter, 3481 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1839 SdHoareTripleChecker+Valid, 5199 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 06:33:47,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1839 Valid, 5199 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 06:33:47,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89816 states. [2022-12-14 06:33:52,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89816 to 89816. [2022-12-14 06:33:52,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89816 states, 58218 states have (on average 1.3700401937545088) internal successors, (79761), 58677 states have internal predecessors, (79761), 25894 states have call successors, (25894), 5700 states have call predecessors, (25894), 5702 states have return successors, (26071), 25438 states have call predecessors, (26071), 25886 states have call successors, (26071) [2022-12-14 06:33:52,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89816 states to 89816 states and 131726 transitions. [2022-12-14 06:33:52,599 INFO L78 Accepts]: Start accepts. Automaton has 89816 states and 131726 transitions. Word has length 295 [2022-12-14 06:33:52,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:33:52,599 INFO L495 AbstractCegarLoop]: Abstraction has 89816 states and 131726 transitions. [2022-12-14 06:33:52,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 06:33:52,600 INFO L276 IsEmpty]: Start isEmpty. Operand 89816 states and 131726 transitions. [2022-12-14 06:33:52,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2022-12-14 06:33:52,617 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:33:52,617 INFO L195 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 6, 6, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:33:52,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-14 06:33:52,618 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:33:52,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:33:52,618 INFO L85 PathProgramCache]: Analyzing trace with hash -132206690, now seen corresponding path program 1 times [2022-12-14 06:33:52,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:33:52,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819001395] [2022-12-14 06:33:52,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:33:52,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:33:52,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:33:52,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1424 trivial. 0 not checked. [2022-12-14 06:33:52,972 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:33:52,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819001395] [2022-12-14 06:33:52,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819001395] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:33:52,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:33:52,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:33:52,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646094695] [2022-12-14 06:33:52,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:33:52,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:33:52,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:33:52,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:33:52,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:33:52,974 INFO L87 Difference]: Start difference. First operand 89816 states and 131726 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-12-14 06:33:55,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:34:02,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:34:02,364 INFO L93 Difference]: Finished difference Result 219792 states and 322541 transitions. [2022-12-14 06:34:02,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:34:02,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 303 [2022-12-14 06:34:02,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:34:02,768 INFO L225 Difference]: With dead ends: 219792 [2022-12-14 06:34:02,768 INFO L226 Difference]: Without dead ends: 130894 [2022-12-14 06:34:02,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:34:02,967 INFO L413 NwaCegarLoop]: 3174 mSDtfsCounter, 1674 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1674 SdHoareTripleChecker+Valid, 4875 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:34:02,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1674 Valid, 4875 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 06:34:03,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130894 states. [2022-12-14 06:34:09,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130894 to 130724. [2022-12-14 06:34:10,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130724 states, 84755 states have (on average 1.371624092973866) internal successors, (116252), 85495 states have internal predecessors, (116252), 37651 states have call successors, (37651), 8312 states have call predecessors, (37651), 8316 states have return successors, (37906), 36916 states have call predecessors, (37906), 37643 states have call successors, (37906) [2022-12-14 06:34:10,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130724 states to 130724 states and 191809 transitions. [2022-12-14 06:34:10,506 INFO L78 Accepts]: Start accepts. Automaton has 130724 states and 191809 transitions. Word has length 303 [2022-12-14 06:34:10,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:34:10,506 INFO L495 AbstractCegarLoop]: Abstraction has 130724 states and 191809 transitions. [2022-12-14 06:34:10,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-12-14 06:34:10,507 INFO L276 IsEmpty]: Start isEmpty. Operand 130724 states and 191809 transitions. [2022-12-14 06:34:10,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-12-14 06:34:10,532 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:34:10,532 INFO L195 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:34:10,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-14 06:34:10,533 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:34:10,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:34:10,533 INFO L85 PathProgramCache]: Analyzing trace with hash 856423914, now seen corresponding path program 1 times [2022-12-14 06:34:10,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:34:10,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122234631] [2022-12-14 06:34:10,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:34:10,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:34:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:34:11,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1427 trivial. 0 not checked. [2022-12-14 06:34:11,160 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:34:11,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122234631] [2022-12-14 06:34:11,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122234631] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:34:11,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:34:11,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:34:11,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589693927] [2022-12-14 06:34:11,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:34:11,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:34:11,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:34:11,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:34:11,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:34:11,162 INFO L87 Difference]: Start difference. First operand 130724 states and 191809 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-14 06:34:13,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:34:20,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:34:20,256 INFO L93 Difference]: Finished difference Result 130724 states and 191809 transitions. [2022-12-14 06:34:20,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:34:20,257 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 312 [2022-12-14 06:34:20,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:34:20,760 INFO L225 Difference]: With dead ends: 130724 [2022-12-14 06:34:20,760 INFO L226 Difference]: Without dead ends: 130722 [2022-12-14 06:34:20,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 06:34:20,803 INFO L413 NwaCegarLoop]: 1717 mSDtfsCounter, 55 mSDsluCounter, 5105 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 6822 SdHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-14 06:34:20,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 6822 Invalid, 1035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1034 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-12-14 06:34:20,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130722 states. [2022-12-14 06:34:27,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130722 to 130722. [2022-12-14 06:34:27,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130722 states, 84754 states have (on average 1.3705547820751822) internal successors, (116160), 85493 states have internal predecessors, (116160), 37651 states have call successors, (37651), 8312 states have call predecessors, (37651), 8316 states have return successors, (37906), 36916 states have call predecessors, (37906), 37643 states have call successors, (37906) [2022-12-14 06:34:28,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130722 states to 130722 states and 191717 transitions. [2022-12-14 06:34:28,493 INFO L78 Accepts]: Start accepts. Automaton has 130722 states and 191717 transitions. Word has length 312 [2022-12-14 06:34:28,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:34:28,494 INFO L495 AbstractCegarLoop]: Abstraction has 130722 states and 191717 transitions. [2022-12-14 06:34:28,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-14 06:34:28,494 INFO L276 IsEmpty]: Start isEmpty. Operand 130722 states and 191717 transitions. [2022-12-14 06:34:28,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-12-14 06:34:28,529 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:34:28,529 INFO L195 NwaCegarLoop]: trace histogram [26, 17, 17, 17, 17, 17, 17, 6, 6, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:34:28,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-14 06:34:28,530 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:34:28,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:34:28,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1872648052, now seen corresponding path program 1 times [2022-12-14 06:34:28,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:34:28,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375507258] [2022-12-14 06:34:28,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:34:28,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:34:28,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:34:28,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 1529 trivial. 0 not checked. [2022-12-14 06:34:28,850 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:34:28,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375507258] [2022-12-14 06:34:28,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375507258] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:34:28,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:34:28,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:34:28,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586297153] [2022-12-14 06:34:28,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:34:28,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:34:28,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:34:28,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:34:28,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:34:28,852 INFO L87 Difference]: Start difference. First operand 130722 states and 191717 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2022-12-14 06:34:39,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:34:39,756 INFO L93 Difference]: Finished difference Result 301107 states and 441503 transitions. [2022-12-14 06:34:39,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:34:39,757 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) Word has length 325 [2022-12-14 06:34:39,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:34:40,368 INFO L225 Difference]: With dead ends: 301107 [2022-12-14 06:34:40,368 INFO L226 Difference]: Without dead ends: 171303 [2022-12-14 06:34:40,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:34:40,687 INFO L413 NwaCegarLoop]: 3169 mSDtfsCounter, 1648 mSDsluCounter, 8037 mSDsCounter, 0 mSdLazyCounter, 1671 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1648 SdHoareTripleChecker+Valid, 11206 SdHoareTripleChecker+Invalid, 1672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:34:40,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1648 Valid, 11206 Invalid, 1672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1671 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 06:34:40,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171303 states. [2022-12-14 06:34:49,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171303 to 171045. [2022-12-14 06:34:50,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171045 states, 110751 states have (on average 1.3699289396935468) internal successors, (151721), 111771 states have internal predecessors, (151721), 49363 states have call successors, (49363), 10879 states have call predecessors, (49363), 10930 states have return successors, (49741), 48394 states have call predecessors, (49741), 49355 states have call successors, (49741) [2022-12-14 06:34:50,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171045 states to 171045 states and 250825 transitions. [2022-12-14 06:34:50,603 INFO L78 Accepts]: Start accepts. Automaton has 171045 states and 250825 transitions. Word has length 325 [2022-12-14 06:34:50,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:34:50,604 INFO L495 AbstractCegarLoop]: Abstraction has 171045 states and 250825 transitions. [2022-12-14 06:34:50,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2022-12-14 06:34:50,604 INFO L276 IsEmpty]: Start isEmpty. Operand 171045 states and 250825 transitions. [2022-12-14 06:34:50,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-12-14 06:34:50,643 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:34:50,643 INFO L195 NwaCegarLoop]: trace histogram [26, 17, 17, 17, 17, 17, 17, 6, 6, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:34:50,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-14 06:34:50,643 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:34:50,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:34:50,644 INFO L85 PathProgramCache]: Analyzing trace with hash 424510752, now seen corresponding path program 1 times [2022-12-14 06:34:50,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:34:50,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129139799] [2022-12-14 06:34:50,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:34:50,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:34:50,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:34:50,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1558 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 1537 trivial. 0 not checked. [2022-12-14 06:34:50,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:34:50,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129139799] [2022-12-14 06:34:50,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129139799] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:34:50,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:34:50,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:34:50,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222119631] [2022-12-14 06:34:50,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:34:50,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:34:50,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:34:50,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:34:50,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:34:50,980 INFO L87 Difference]: Start difference. First operand 171045 states and 250825 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-12-14 06:34:54,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:35:12,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:35:12,139 INFO L93 Difference]: Finished difference Result 503412 states and 738472 transitions. [2022-12-14 06:35:12,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:35:12,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 325 [2022-12-14 06:35:12,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:35:13,430 INFO L225 Difference]: With dead ends: 503412 [2022-12-14 06:35:13,430 INFO L226 Difference]: Without dead ends: 333285 [2022-12-14 06:35:13,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:35:13,857 INFO L413 NwaCegarLoop]: 3156 mSDtfsCounter, 1809 mSDsluCounter, 1699 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1809 SdHoareTripleChecker+Valid, 4855 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 06:35:13,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1809 Valid, 4855 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 06:35:14,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333285 states. [2022-12-14 06:35:32,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333285 to 333285. [2022-12-14 06:35:32,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333285 states, 216957 states have (on average 1.3692344565973902) internal successors, (297065), 218031 states have internal predecessors, (297065), 95192 states have call successors, (95192), 21031 states have call predecessors, (95192), 21135 states have return successors, (95956), 94222 states have call predecessors, (95956), 95184 states have call successors, (95956) [2022-12-14 06:35:34,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333285 states to 333285 states and 488213 transitions. [2022-12-14 06:35:34,162 INFO L78 Accepts]: Start accepts. Automaton has 333285 states and 488213 transitions. Word has length 325 [2022-12-14 06:35:34,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:35:34,162 INFO L495 AbstractCegarLoop]: Abstraction has 333285 states and 488213 transitions. [2022-12-14 06:35:34,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-12-14 06:35:34,163 INFO L276 IsEmpty]: Start isEmpty. Operand 333285 states and 488213 transitions. [2022-12-14 06:35:34,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2022-12-14 06:35:34,430 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:35:34,430 INFO L195 NwaCegarLoop]: trace histogram [27, 17, 17, 17, 17, 17, 17, 7, 7, 6, 6, 6, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:35:34,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-14 06:35:34,430 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:35:34,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:35:34,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1179709381, now seen corresponding path program 1 times [2022-12-14 06:35:34,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:35:34,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640890791] [2022-12-14 06:35:34,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:35:34,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:35:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:35:34,742 INFO L134 CoverageAnalysis]: Checked inductivity of 1656 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2022-12-14 06:35:34,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:35:34,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640890791] [2022-12-14 06:35:34,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640890791] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:35:34,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:35:34,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:35:34,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530096891] [2022-12-14 06:35:34,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:35:34,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:35:34,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:35:34,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:35:34,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:35:34,743 INFO L87 Difference]: Start difference. First operand 333285 states and 488213 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-12-14 06:35:38,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:35:59,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:35:59,163 INFO L93 Difference]: Finished difference Result 698385 states and 1023269 transitions. [2022-12-14 06:35:59,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:35:59,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 341 [2022-12-14 06:35:59,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:36:00,505 INFO L225 Difference]: With dead ends: 698385 [2022-12-14 06:36:00,506 INFO L226 Difference]: Without dead ends: 366018 [2022-12-14 06:36:01,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:36:01,284 INFO L413 NwaCegarLoop]: 3056 mSDtfsCounter, 1808 mSDsluCounter, 1699 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1808 SdHoareTripleChecker+Valid, 4755 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-12-14 06:36:01,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1808 Valid, 4755 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 700 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-12-14 06:36:01,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366018 states. [2022-12-14 06:36:21,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366018 to 366018. [2022-12-14 06:36:22,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366018 states, 239031 states have (on average 1.3683748133087341) internal successors, (327084), 239591 states have internal predecessors, (327084), 103938 states have call successors, (103938), 22942 states have call predecessors, (103938), 23048 states have return successors, (104780), 103484 states have call predecessors, (104780), 103930 states have call successors, (104780) [2022-12-14 06:36:23,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366018 states to 366018 states and 535802 transitions. [2022-12-14 06:36:23,708 INFO L78 Accepts]: Start accepts. Automaton has 366018 states and 535802 transitions. Word has length 341 [2022-12-14 06:36:23,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:36:23,709 INFO L495 AbstractCegarLoop]: Abstraction has 366018 states and 535802 transitions. [2022-12-14 06:36:23,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-12-14 06:36:23,709 INFO L276 IsEmpty]: Start isEmpty. Operand 366018 states and 535802 transitions. [2022-12-14 06:36:23,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2022-12-14 06:36:23,850 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:36:23,850 INFO L195 NwaCegarLoop]: trace histogram [28, 17, 17, 17, 17, 17, 17, 8, 8, 7, 7, 7, 5, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:36:23,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-14 06:36:23,850 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 06:36:23,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:36:23,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1572866172, now seen corresponding path program 1 times [2022-12-14 06:36:23,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:36:23,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589861223] [2022-12-14 06:36:23,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:36:23,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:36:23,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:36:24,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1765 backedges. 40 proven. 29 refuted. 0 times theorem prover too weak. 1696 trivial. 0 not checked. [2022-12-14 06:36:24,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:36:24,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589861223] [2022-12-14 06:36:24,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589861223] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:36:24,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494367634] [2022-12-14 06:36:24,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:36:24,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:36:24,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e6b11-25ff-4716-b34f-bd66b277b995/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:36:24,336 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e6b11-25ff-4716-b34f-bd66b277b995/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:36:24,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e6b11-25ff-4716-b34f-bd66b277b995/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 06:36:25,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:36:25,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 5135 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 06:36:25,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:36:25,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1765 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 1650 trivial. 0 not checked. [2022-12-14 06:36:25,303 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:36:25,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494367634] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:36:25,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 06:36:25,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-12-14 06:36:25,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704256189] [2022-12-14 06:36:25,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:36:25,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:36:25,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:36:25,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:36:25,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:36:25,305 INFO L87 Difference]: Start difference. First operand 366018 states and 535802 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-12-14 06:36:46,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:36:46,581 INFO L93 Difference]: Finished difference Result 405148 states and 593125 transitions. [2022-12-14 06:36:46,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:36:46,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 356 [2022-12-14 06:36:46,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:36:48,051 INFO L225 Difference]: With dead ends: 405148 [2022-12-14 06:36:48,051 INFO L226 Difference]: Without dead ends: 404742 [2022-12-14 06:36:48,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:36:48,200 INFO L413 NwaCegarLoop]: 2024 mSDtfsCounter, 1898 mSDsluCounter, 1470 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1898 SdHoareTripleChecker+Valid, 3494 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:36:48,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1898 Valid, 3494 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 06:36:48,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404742 states.