/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 07:33:02,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 07:33:02,663 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 07:33:02,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 07:33:02,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 07:33:02,695 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 07:33:02,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 07:33:02,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 07:33:02,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 07:33:02,699 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 07:33:02,699 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 07:33:02,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 07:33:02,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 07:33:02,701 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 07:33:02,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 07:33:02,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 07:33:02,703 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 07:33:02,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 07:33:02,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 07:33:02,706 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 07:33:02,707 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 07:33:02,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 07:33:02,709 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 07:33:02,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 07:33:02,713 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 07:33:02,713 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 07:33:02,713 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 07:33:02,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 07:33:02,714 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 07:33:02,715 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 07:33:02,715 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 07:33:02,715 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 07:33:02,716 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 07:33:02,717 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 07:33:02,717 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 07:33:02,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 07:33:02,718 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 07:33:02,718 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 07:33:02,718 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 07:33:02,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 07:33:02,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 07:33:02,720 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-03 07:33:02,746 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 07:33:02,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 07:33:02,748 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 07:33:02,748 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 07:33:02,749 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 07:33:02,749 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 07:33:02,749 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 07:33:02,749 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 07:33:02,749 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 07:33:02,749 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 07:33:02,750 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 07:33:02,750 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 07:33:02,750 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 07:33:02,750 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 07:33:02,751 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 07:33:02,751 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 07:33:02,751 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 07:33:02,751 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 07:33:02,751 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 07:33:02,751 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 07:33:02,752 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 07:33:02,752 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 07:33:02,752 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 07:33:02,752 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 07:33:02,752 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 07:33:02,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 07:33:02,752 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 07:33:02,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 07:33:02,752 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 07:33:02,753 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 07:33:02,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 07:33:02,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 07:33:02,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 07:33:02,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 07:33:02,753 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 07:33:02,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 07:33:02,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 07:33:02,754 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 07:33:02,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 07:33:02,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 07:33:02,754 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 07:33:02,754 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 07:33:02,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 07:33:03,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 07:33:03,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 07:33:03,023 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 07:33:03,024 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 07:33:03,025 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i [2023-04-03 07:33:04,194 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 07:33:04,779 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 07:33:04,780 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i [2023-04-03 07:33:04,829 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebd636e96/68ae8c48c3704438abb26a1ebdcd2100/FLAGe02f094b4 [2023-04-03 07:33:04,847 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebd636e96/68ae8c48c3704438abb26a1ebdcd2100 [2023-04-03 07:33:04,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 07:33:04,851 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 07:33:04,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 07:33:04,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 07:33:04,858 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 07:33:04,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 07:33:04" (1/1) ... [2023-04-03 07:33:04,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48bee9cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 07:33:04, skipping insertion in model container [2023-04-03 07:33:04,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 07:33:04" (1/1) ... [2023-04-03 07:33:04,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 07:33:04,997 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 07:33:07,166 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359515,359528] [2023-04-03 07:33:07,170 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359684,359697] [2023-04-03 07:33:07,175 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359851,359864] [2023-04-03 07:33:07,176 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[360019,360032] [2023-04-03 07:33:07,196 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 07:33:07,291 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 07:33:07,607 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359515,359528] [2023-04-03 07:33:07,607 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359684,359697] [2023-04-03 07:33:07,608 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359851,359864] [2023-04-03 07:33:07,608 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[360019,360032] [2023-04-03 07:33:07,613 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 07:33:07,804 INFO L208 MainTranslator]: Completed translation [2023-04-03 07:33:07,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 07:33:07 WrapperNode [2023-04-03 07:33:07,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 07:33:07,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 07:33:07,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 07:33:07,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 07:33:07,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 07:33:07" (1/1) ... [2023-04-03 07:33:07,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 07:33:07" (1/1) ... [2023-04-03 07:33:07,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 07:33:07" (1/1) ... [2023-04-03 07:33:07,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 07:33:07" (1/1) ... [2023-04-03 07:33:08,046 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 07:33:07" (1/1) ... [2023-04-03 07:33:08,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 07:33:07" (1/1) ... [2023-04-03 07:33:08,104 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 07:33:07" (1/1) ... [2023-04-03 07:33:08,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 07:33:07" (1/1) ... [2023-04-03 07:33:08,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 07:33:08,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 07:33:08,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 07:33:08,179 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 07:33:08,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 07:33:07" (1/1) ... [2023-04-03 07:33:08,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 07:33:08,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 07:33:08,210 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-03 07:33:08,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-03 07:33:08,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 07:33:08,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 07:33:08,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~X~~u16~0~X~$Pointer$~X~~u16~0~TO~int [2023-04-03 07:33:08,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-04-03 07:33:08,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-04-03 07:33:08,248 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-04-03 07:33:08,248 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-04-03 07:33:08,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-04-03 07:33:08,248 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-03 07:33:08,248 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-04-03 07:33:08,248 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-04-03 07:33:08,248 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-04-03 07:33:08,248 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-04-03 07:33:08,248 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2023-04-03 07:33:08,248 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2023-04-03 07:33:08,248 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2023-04-03 07:33:08,248 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2023-04-03 07:33:08,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2023-04-03 07:33:08,249 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-04-03 07:33:08,249 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-04-03 07:33:08,249 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-04-03 07:33:08,249 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-04-03 07:33:08,249 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2023-04-03 07:33:08,249 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2023-04-03 07:33:08,249 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2023-04-03 07:33:08,249 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_random_addr [2023-04-03 07:33:08,249 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hw_addr_random [2023-04-03 07:33:08,249 INFO L138 BoogieDeclarations]: Found implementation of procedure if_mii [2023-04-03 07:33:08,249 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_resolve_flowctrl_fdx [2023-04-03 07:33:08,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc75xx_read_reg [2023-04-03 07:33:08,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc75xx_write_reg [2023-04-03 07:33:08,250 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_read_reg_nopm [2023-04-03 07:33:08,250 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_write_reg_nopm [2023-04-03 07:33:08,250 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_read_reg [2023-04-03 07:33:08,250 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_write_reg [2023-04-03 07:33:08,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc75xx_phy_wait_not_busy [2023-04-03 07:33:08,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc75xx_mdio_read [2023-04-03 07:33:08,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc75xx_mdio_write [2023-04-03 07:33:08,251 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_mdio_read_nopm [2023-04-03 07:33:08,252 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_mdio_write_nopm [2023-04-03 07:33:08,252 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_mdio_read [2023-04-03 07:33:08,252 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_mdio_write [2023-04-03 07:33:08,252 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_wait_eeprom [2023-04-03 07:33:08,252 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_eeprom_confirm_not_busy [2023-04-03 07:33:08,252 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_read_eeprom [2023-04-03 07:33:08,252 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_write_eeprom [2023-04-03 07:33:08,252 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_dataport_wait_not_busy [2023-04-03 07:33:08,252 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_dataport_write [2023-04-03 07:33:08,253 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_hash [2023-04-03 07:33:08,253 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_deferred_multicast_write [2023-04-03 07:33:08,253 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_set_multicast [2023-04-03 07:33:08,253 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_update_flowcontrol [2023-04-03 07:33:08,253 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_link_reset [2023-04-03 07:33:08,254 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_status [2023-04-03 07:33:08,254 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_ethtool_get_eeprom_len [2023-04-03 07:33:08,254 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_ethtool_get_eeprom [2023-04-03 07:33:08,254 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_ethtool_set_eeprom [2023-04-03 07:33:08,254 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_ethtool_get_wol [2023-04-03 07:33:08,254 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_ethtool_set_wol [2023-04-03 07:33:08,254 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_ioctl [2023-04-03 07:33:08,255 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_init_mac_address [2023-04-03 07:33:08,255 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_set_mac_address [2023-04-03 07:33:08,255 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_phy_initialize [2023-04-03 07:33:08,255 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_set_rx_max_frame_length [2023-04-03 07:33:08,255 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_change_mtu [2023-04-03 07:33:08,255 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_set_features [2023-04-03 07:33:08,255 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_wait_ready [2023-04-03 07:33:08,255 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_reset [2023-04-03 07:33:08,255 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_bind [2023-04-03 07:33:08,255 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_unbind [2023-04-03 07:33:08,255 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc_crc [2023-04-03 07:33:08,255 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_write_wuff [2023-04-03 07:33:08,256 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_enter_suspend0 [2023-04-03 07:33:08,256 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_enter_suspend1 [2023-04-03 07:33:08,256 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_enter_suspend2 [2023-04-03 07:33:08,257 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_enter_suspend3 [2023-04-03 07:33:08,257 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_enable_phy_wakeup_interrupts [2023-04-03 07:33:08,257 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_link_ok_nopm [2023-04-03 07:33:08,257 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_autosuspend [2023-04-03 07:33:08,257 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_suspend [2023-04-03 07:33:08,258 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_resume [2023-04-03 07:33:08,258 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_rx_csum_offload [2023-04-03 07:33:08,258 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_rx_fixup [2023-04-03 07:33:08,258 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_tx_fixup [2023-04-03 07:33:08,258 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_manage_power [2023-04-03 07:33:08,258 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_driver_init [2023-04-03 07:33:08,258 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_driver_exit [2023-04-03 07:33:08,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_smsc75xx_driver_exit_6_2 [2023-04-03 07:33:08,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_init_smsc75xx_driver_init_6_11 [2023-04-03 07:33:08,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_allocate_external_0 [2023-04-03 07:33:08,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_deregister_4_1 [2023-04-03 07:33:08,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_deregister_dummy_resourceless_instance_3_6_4 [2023-04-03 07:33:08,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_deregister_dummy_resourceless_instance_4_6_5 [2023-04-03 07:33:08,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_deregister_3_2 [2023-04-03 07:33:08,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_3_3 [2023-04-03 07:33:08,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_register_5_2 [2023-04-03 07:33:08,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_register_dummy_resourceless_instance_3_6_6 [2023-04-03 07:33:08,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_register_dummy_resourceless_instance_4_6_7 [2023-04-03 07:33:08,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_0_10 [2023-04-03 07:33:08,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_0_11 [2023-04-03 07:33:08,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_0_12 [2023-04-03 07:33:08,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_0_13 [2023-04-03 07:33:08,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_0_14 [2023-04-03 07:33:08,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_0_15 [2023-04-03 07:33:08,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_0_18 [2023-04-03 07:33:08,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_0_21 [2023-04-03 07:33:08,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_0_22 [2023-04-03 07:33:08,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_0_25 [2023-04-03 07:33:08,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_0_26 [2023-04-03 07:33:08,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_0_27 [2023-04-03 07:33:08,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_0_28 [2023-04-03 07:33:08,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_0_29 [2023-04-03 07:33:08,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_0_3 [2023-04-03 07:33:08,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_0_30 [2023-04-03 07:33:08,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_0_31 [2023-04-03 07:33:08,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_0_32 [2023-04-03 07:33:08,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_0_35 [2023-04-03 07:33:08,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_0_38 [2023-04-03 07:33:08,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_0_39 [2023-04-03 07:33:08,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_0_7 [2023-04-03 07:33:08,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_1_11 [2023-04-03 07:33:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_1_12 [2023-04-03 07:33:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_1_13 [2023-04-03 07:33:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_1_14 [2023-04-03 07:33:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_1_17 [2023-04-03 07:33:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_1_3 [2023-04-03 07:33:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_1_7 [2023-04-03 07:33:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_1_8 [2023-04-03 07:33:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_entry_EMGentry_6 [2023-04-03 07:33:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 07:33:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_external_data [2023-04-03 07:33:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_dummy_resourceless_instance_0 [2023-04-03 07:33:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_struct_driver_info_dummy_resourceless_instance_1 [2023-04-03 07:33:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-04-03 07:33:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-04-03 07:33:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2023-04-03 07:33:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_1 [2023-04-03 07:33:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_5 [2023-04-03 07:33:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_1 [2023-04-03 07:33:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_5 [2023-04-03 07:33:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_1 [2023-04-03 07:33:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_15 [2023-04-03 07:33:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_3_1 [2023-04-03 07:33:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_3_4 [2023-04-03 07:33:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister [2023-04-03 07:33:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_dummy_factory_3 [2023-04-03 07:33:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_callback_2_6 [2023-04-03 07:33:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_post_2_9 [2023-04-03 07:33:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_pre_2_10 [2023-04-03 07:33:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_probe_2_13 [2023-04-03 07:33:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_2_4 [2023-04-03 07:33:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_resume_2_7 [2023-04-03 07:33:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_suspend_2_8 [2023-04-03 07:33:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver [2023-04-03 07:33:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_usb_instance_2 [2023-04-03 07:33:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-03 07:33:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata_58 [2023-04-03 07:33:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___ldv_spin_lock_60 [2023-04-03 07:33:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2023-04-03 07:33:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___ldv_spin_lock_62 [2023-04-03 07:33:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_64 [2023-04-03 07:33:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_65 [2023-04-03 07:33:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2023-04-03 07:33:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-04-03 07:33:08,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spi_alloc_master [2023-04-03 07:33:08,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-03 07:33:08,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-04-03 07:33:08,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-04-03 07:33:08,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-04-03 07:33:08,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-04-03 07:33:08,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_init [2023-04-03 07:33:08,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2023-04-03 07:33:08,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-04-03 07:33:08,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kzalloc [2023-04-03 07:33:08,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-04-03 07:33:08,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-03 07:33:08,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-03 07:33:08,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2023-04-03 07:33:08,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-03 07:33:08,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2023-04-03 07:33:08,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-03 07:33:08,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-04-03 07:33:08,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-04-03 07:33:08,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xzalloc [2023-04-03 07:33:08,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-03 07:33:08,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-03 07:33:08,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2023-04-03 07:33:08,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2023-04-03 07:33:08,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_thread_create [2023-04-03 07:33:08,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_thread_create_N [2023-04-03 07:33:08,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_thread_join [2023-04-03 07:33:08,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_thread_join_N [2023-04-03 07:33:08,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock__xmit_lock_of_netdev_queue [2023-04-03 07:33:08,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock__xmit_lock_of_netdev_queue [2023-04-03 07:33:08,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock__xmit_lock_of_netdev_queue [2023-04-03 07:33:08,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_wait__xmit_lock_of_netdev_queue [2023-04-03 07:33:08,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked__xmit_lock_of_netdev_queue [2023-04-03 07:33:08,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_can_lock__xmit_lock_of_netdev_queue [2023-04-03 07:33:08,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_contended__xmit_lock_of_netdev_queue [2023-04-03 07:33:08,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_lock__xmit_lock_of_netdev_queue [2023-04-03 07:33:08,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_addr_list_lock_of_net_device [2023-04-03 07:33:08,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_addr_list_lock_of_net_device [2023-04-03 07:33:08,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock_addr_list_lock_of_net_device [2023-04-03 07:33:08,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_wait_addr_list_lock_of_net_device [2023-04-03 07:33:08,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_addr_list_lock_of_net_device [2023-04-03 07:33:08,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_can_lock_addr_list_lock_of_net_device [2023-04-03 07:33:08,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_contended_addr_list_lock_of_net_device [2023-04-03 07:33:08,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_lock_addr_list_lock_of_net_device [2023-04-03 07:33:08,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_alloc_lock_of_task_struct [2023-04-03 07:33:08,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_alloc_lock_of_task_struct [2023-04-03 07:33:08,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock_alloc_lock_of_task_struct [2023-04-03 07:33:08,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_wait_alloc_lock_of_task_struct [2023-04-03 07:33:08,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_alloc_lock_of_task_struct [2023-04-03 07:33:08,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_can_lock_alloc_lock_of_task_struct [2023-04-03 07:33:08,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_contended_alloc_lock_of_task_struct [2023-04-03 07:33:08,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_lock_alloc_lock_of_task_struct [2023-04-03 07:33:08,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_i_lock_of_inode [2023-04-03 07:33:08,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_i_lock_of_inode [2023-04-03 07:33:08,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock_i_lock_of_inode [2023-04-03 07:33:08,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_wait_i_lock_of_inode [2023-04-03 07:33:08,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_i_lock_of_inode [2023-04-03 07:33:08,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_can_lock_i_lock_of_inode [2023-04-03 07:33:08,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_contended_i_lock_of_inode [2023-04-03 07:33:08,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_lock_i_lock_of_inode [2023-04-03 07:33:08,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock [2023-04-03 07:33:08,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock [2023-04-03 07:33:08,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock_lock [2023-04-03 07:33:08,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_wait_lock [2023-04-03 07:33:08,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_lock [2023-04-03 07:33:08,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_can_lock_lock [2023-04-03 07:33:08,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_contended_lock [2023-04-03 07:33:08,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_lock_lock [2023-04-03 07:33:08,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_NOT_ARG_SIGN [2023-04-03 07:33:08,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_NOT_ARG_SIGN [2023-04-03 07:33:08,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock_lock_of_NOT_ARG_SIGN [2023-04-03 07:33:08,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_wait_lock_of_NOT_ARG_SIGN [2023-04-03 07:33:08,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_lock_of_NOT_ARG_SIGN [2023-04-03 07:33:08,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_can_lock_lock_of_NOT_ARG_SIGN [2023-04-03 07:33:08,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_contended_lock_of_NOT_ARG_SIGN [2023-04-03 07:33:08,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_lock_lock_of_NOT_ARG_SIGN [2023-04-03 07:33:08,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lru_lock_of_netns_frags [2023-04-03 07:33:08,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lru_lock_of_netns_frags [2023-04-03 07:33:08,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock_lru_lock_of_netns_frags [2023-04-03 07:33:08,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_wait_lru_lock_of_netns_frags [2023-04-03 07:33:08,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_lru_lock_of_netns_frags [2023-04-03 07:33:08,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_can_lock_lru_lock_of_netns_frags [2023-04-03 07:33:08,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_contended_lru_lock_of_netns_frags [2023-04-03 07:33:08,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_lock_lru_lock_of_netns_frags [2023-04-03 07:33:08,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_node_size_lock_of_pglist_data [2023-04-03 07:33:08,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_node_size_lock_of_pglist_data [2023-04-03 07:33:08,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock_node_size_lock_of_pglist_data [2023-04-03 07:33:08,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_wait_node_size_lock_of_pglist_data [2023-04-03 07:33:08,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_node_size_lock_of_pglist_data [2023-04-03 07:33:08,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_can_lock_node_size_lock_of_pglist_data [2023-04-03 07:33:08,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_contended_node_size_lock_of_pglist_data [2023-04-03 07:33:08,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_lock_node_size_lock_of_pglist_data [2023-04-03 07:33:08,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_ptl [2023-04-03 07:33:08,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_ptl [2023-04-03 07:33:08,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock_ptl [2023-04-03 07:33:08,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_wait_ptl [2023-04-03 07:33:08,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_ptl [2023-04-03 07:33:08,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_can_lock_ptl [2023-04-03 07:33:08,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_contended_ptl [2023-04-03 07:33:08,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_lock_ptl [2023-04-03 07:33:08,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_rfe_ctl_lock_of_smsc75xx_priv [2023-04-03 07:33:08,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_rfe_ctl_lock_of_smsc75xx_priv [2023-04-03 07:33:08,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock_rfe_ctl_lock_of_smsc75xx_priv [2023-04-03 07:33:08,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_wait_rfe_ctl_lock_of_smsc75xx_priv [2023-04-03 07:33:08,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_rfe_ctl_lock_of_smsc75xx_priv [2023-04-03 07:33:08,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_can_lock_rfe_ctl_lock_of_smsc75xx_priv [2023-04-03 07:33:08,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_contended_rfe_ctl_lock_of_smsc75xx_priv [2023-04-03 07:33:08,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_lock_rfe_ctl_lock_of_smsc75xx_priv [2023-04-03 07:33:08,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_siglock_of_sighand_struct [2023-04-03 07:33:08,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_siglock_of_sighand_struct [2023-04-03 07:33:08,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock_siglock_of_sighand_struct [2023-04-03 07:33:08,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_wait_siglock_of_sighand_struct [2023-04-03 07:33:08,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_siglock_of_sighand_struct [2023-04-03 07:33:08,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_can_lock_siglock_of_sighand_struct [2023-04-03 07:33:08,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_contended_siglock_of_sighand_struct [2023-04-03 07:33:08,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_lock_siglock_of_sighand_struct [2023-04-03 07:33:08,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_tx_global_lock_of_net_device [2023-04-03 07:33:08,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_global_lock_of_net_device [2023-04-03 07:33:08,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock_tx_global_lock_of_net_device [2023-04-03 07:33:08,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_wait_tx_global_lock_of_net_device [2023-04-03 07:33:08,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_tx_global_lock_of_net_device [2023-04-03 07:33:08,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_can_lock_tx_global_lock_of_net_device [2023-04-03 07:33:08,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_contended_tx_global_lock_of_net_device [2023-04-03 07:33:08,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_lock_tx_global_lock_of_net_device [2023-04-03 07:33:08,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-03 07:33:08,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2023-04-03 07:33:08,323 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 07:33:08,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-04-03 07:33:08,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2023-04-03 07:33:08,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-04-03 07:33:08,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-04-03 07:33:08,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-04-03 07:33:08,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2023-04-03 07:33:08,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-04-03 07:33:08,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-04-03 07:33:08,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-04-03 07:33:08,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-04-03 07:33:08,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-03 07:33:08,324 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2023-04-03 07:33:08,324 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev16 [2023-04-03 07:33:08,324 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2023-04-03 07:33:08,324 INFO L138 BoogieDeclarations]: Found implementation of procedure crc16 [2023-04-03 07:33:08,324 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2023-04-03 07:33:08,324 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2023-04-03 07:33:08,324 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2023-04-03 07:33:08,325 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-04-03 07:33:08,325 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_mii_ioctl [2023-04-03 07:33:08,325 INFO L138 BoogieDeclarations]: Found implementation of procedure get_random_bytes [2023-04-03 07:33:08,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2023-04-03 07:33:08,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2023-04-03 07:33:08,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-04-03 07:33:08,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-03 07:33:08,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2023-04-03 07:33:08,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_usb_register_driver [2023-04-03 07:33:08,325 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-04-03 07:33:08,325 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_check_media [2023-04-03 07:33:08,325 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_gset [2023-04-03 07:33:08,325 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_nway_restart [2023-04-03 07:33:08,325 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-04-03 07:33:08,325 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-04-03 07:33:08,326 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-04-03 07:33:08,326 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-04-03 07:33:08,326 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2023-04-03 07:33:08,326 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-03 07:33:08,326 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-04-03 07:33:08,326 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2023-04-03 07:33:08,326 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_expand [2023-04-03 07:33:08,326 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2023-04-03 07:33:08,326 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2023-04-03 07:33:08,326 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2023-04-03 07:33:08,326 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-04-03 07:33:08,326 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-04-03 07:33:08,326 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_change_mtu [2023-04-03 07:33:08,326 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_defer_kevent [2023-04-03 07:33:08,326 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2023-04-03 07:33:08,326 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_drvinfo [2023-04-03 07:33:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_endpoints [2023-04-03 07:33:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_link [2023-04-03 07:33:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_msglevel [2023-04-03 07:33:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_settings [2023-04-03 07:33:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_nway_reset [2023-04-03 07:33:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_open [2023-04-03 07:33:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2023-04-03 07:33:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2023-04-03 07:33:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_set_msglevel [2023-04-03 07:33:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_set_settings [2023-04-03 07:33:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_skb_return [2023-04-03 07:33:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_start_xmit [2023-04-03 07:33:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_stop [2023-04-03 07:33:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2023-04-03 07:33:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2023-04-03 07:33:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-03 07:33:08,328 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-03 07:33:08,328 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-03 07:33:08,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-03 07:33:08,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2023-04-03 07:33:08,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kzalloc [2023-04-03 07:33:08,328 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-04-03 07:33:08,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 07:33:08,328 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-04-03 07:33:08,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 07:33:08,328 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-04-03 07:33:08,328 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-03 07:33:08,328 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-04-03 07:33:08,329 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-03 07:33:08,329 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-04-03 07:33:08,329 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-04-03 07:33:08,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___ldv_spin_lock_60 [2023-04-03 07:33:08,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___ldv_spin_lock_62 [2023-04-03 07:33:08,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_rfe_ctl_lock_of_smsc75xx_priv [2023-04-03 07:33:08,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_rfe_ctl_lock_of_smsc75xx_priv [2023-04-03 07:33:08,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-03 07:33:08,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_init [2023-04-03 07:33:08,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2023-04-03 07:33:08,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2023-04-03 07:33:08,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_usb_register_driver [2023-04-03 07:33:08,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-03 07:33:08,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-04-03 07:33:08,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-03 07:33:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-03 07:33:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-04-03 07:33:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-04-03 07:33:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-04-03 07:33:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-04-03 07:33:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-04-03 07:33:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-03 07:33:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2023-04-03 07:33:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-03 07:33:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-04-03 07:33:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2023-04-03 07:33:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-04-03 07:33:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-04-03 07:33:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-04-03 07:33:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-04-03 07:33:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2023-04-03 07:33:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata_58 [2023-04-03 07:33:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-04-03 07:33:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-04-03 07:33:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure get_random_bytes [2023-04-03 07:33:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-03 07:33:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-03 07:33:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2023-04-03 07:33:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_expand [2023-04-03 07:33:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-04-03 07:33:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 07:33:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2023-04-03 07:33:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 07:33:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2023-04-03 07:33:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2023-04-03 07:33:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2023-04-03 07:33:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2023-04-03 07:33:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2023-04-03 07:33:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2023-04-03 07:33:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2023-04-03 07:33:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-04-03 07:33:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-04-03 07:33:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2023-04-03 07:33:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-04-03 07:33:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2023-04-03 07:33:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-04-03 07:33:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-04-03 07:33:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-04-03 07:33:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_64 [2023-04-03 07:33:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-04-03 07:33:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_65 [2023-04-03 07:33:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2023-04-03 07:33:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-04-03 07:33:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2023-04-03 07:33:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2023-04-03 07:33:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2023-04-03 07:33:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure eth_random_addr [2023-04-03 07:33:08,341 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hw_addr_random [2023-04-03 07:33:08,341 INFO L130 BoogieDeclarations]: Found specification of procedure mii_nway_restart [2023-04-03 07:33:08,341 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_gset [2023-04-03 07:33:08,341 INFO L130 BoogieDeclarations]: Found specification of procedure mii_check_media [2023-04-03 07:33:08,341 INFO L130 BoogieDeclarations]: Found specification of procedure generic_mii_ioctl [2023-04-03 07:33:08,341 INFO L130 BoogieDeclarations]: Found specification of procedure if_mii [2023-04-03 07:33:08,341 INFO L130 BoogieDeclarations]: Found specification of procedure mii_resolve_flowctrl_fdx [2023-04-03 07:33:08,341 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev16 [2023-04-03 07:33:08,341 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2023-04-03 07:33:08,341 INFO L130 BoogieDeclarations]: Found specification of procedure crc16 [2023-04-03 07:33:08,341 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2023-04-03 07:33:08,341 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2023-04-03 07:33:08,341 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2023-04-03 07:33:08,341 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2023-04-03 07:33:08,341 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2023-04-03 07:33:08,341 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd [2023-04-03 07:33:08,341 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd [2023-04-03 07:33:08,341 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd_nopm [2023-04-03 07:33:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd_nopm [2023-04-03 07:33:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_open [2023-04-03 07:33:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_stop [2023-04-03 07:33:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_start_xmit [2023-04-03 07:33:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2023-04-03 07:33:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_change_mtu [2023-04-03 07:33:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_endpoints [2023-04-03 07:33:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_defer_kevent [2023-04-03 07:33:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_skb_return [2023-04-03 07:33:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_settings [2023-04-03 07:33:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_set_settings [2023-04-03 07:33:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_link [2023-04-03 07:33:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_msglevel [2023-04-03 07:33:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_set_msglevel [2023-04-03 07:33:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_drvinfo [2023-04-03 07:33:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_nway_reset [2023-04-03 07:33:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc75xx_read_reg [2023-04-03 07:33:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-03 07:33:08,343 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 [2023-04-03 07:33:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 07:33:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 07:33:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc75xx_write_reg [2023-04-03 07:33:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_read_reg_nopm [2023-04-03 07:33:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_write_reg_nopm [2023-04-03 07:33:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_read_reg [2023-04-03 07:33:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_write_reg [2023-04-03 07:33:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc75xx_phy_wait_not_busy [2023-04-03 07:33:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc75xx_mdio_read [2023-04-03 07:33:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc75xx_mdio_write [2023-04-03 07:33:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_mdio_read_nopm [2023-04-03 07:33:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_mdio_write_nopm [2023-04-03 07:33:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_mdio_read [2023-04-03 07:33:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_mdio_write [2023-04-03 07:33:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_wait_eeprom [2023-04-03 07:33:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_eeprom_confirm_not_busy [2023-04-03 07:33:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_read_eeprom [2023-04-03 07:33:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_write_eeprom [2023-04-03 07:33:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_dataport_wait_not_busy [2023-04-03 07:33:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_dataport_write [2023-04-03 07:33:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_hash [2023-04-03 07:33:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_deferred_multicast_write [2023-04-03 07:33:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_set_multicast [2023-04-03 07:33:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_update_flowcontrol [2023-04-03 07:33:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_link_reset [2023-04-03 07:33:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_status [2023-04-03 07:33:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-03 07:33:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_ethtool_get_eeprom_len [2023-04-03 07:33:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_ethtool_get_eeprom [2023-04-03 07:33:08,345 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_ethtool_set_eeprom [2023-04-03 07:33:08,345 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_ethtool_get_wol [2023-04-03 07:33:08,345 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_ethtool_set_wol [2023-04-03 07:33:08,348 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_ioctl [2023-04-03 07:33:08,348 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_init_mac_address [2023-04-03 07:33:08,348 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_set_mac_address [2023-04-03 07:33:08,348 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_phy_initialize [2023-04-03 07:33:08,348 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_set_rx_max_frame_length [2023-04-03 07:33:08,348 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_change_mtu [2023-04-03 07:33:08,348 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_set_features [2023-04-03 07:33:08,348 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_wait_ready [2023-04-03 07:33:08,348 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_reset [2023-04-03 07:33:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_bind [2023-04-03 07:33:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_unbind [2023-04-03 07:33:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure smsc_crc [2023-04-03 07:33:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_write_wuff [2023-04-03 07:33:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_enter_suspend0 [2023-04-03 07:33:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_enter_suspend1 [2023-04-03 07:33:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_enter_suspend2 [2023-04-03 07:33:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_enter_suspend3 [2023-04-03 07:33:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_enable_phy_wakeup_interrupts [2023-04-03 07:33:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_link_ok_nopm [2023-04-03 07:33:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_autosuspend [2023-04-03 07:33:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_suspend [2023-04-03 07:33:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_resume [2023-04-03 07:33:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_rx_csum_offload [2023-04-03 07:33:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_rx_fixup [2023-04-03 07:33:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_tx_fixup [2023-04-03 07:33:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_manage_power [2023-04-03 07:33:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_driver_init [2023-04-03 07:33:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_driver_exit [2023-04-03 07:33:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_smsc75xx_driver_exit_6_2 [2023-04-03 07:33:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_init_smsc75xx_driver_init_6_11 [2023-04-03 07:33:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_allocate_external_0 [2023-04-03 07:33:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_deregister_4_1 [2023-04-03 07:33:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_deregister_dummy_resourceless_instance_3_6_4 [2023-04-03 07:33:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_deregister_dummy_resourceless_instance_4_6_5 [2023-04-03 07:33:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_deregister_3_2 [2023-04-03 07:33:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_3_3 [2023-04-03 07:33:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_register_5_2 [2023-04-03 07:33:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_register_dummy_resourceless_instance_3_6_6 [2023-04-03 07:33:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_register_dummy_resourceless_instance_4_6_7 [2023-04-03 07:33:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_0_10 [2023-04-03 07:33:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_0_11 [2023-04-03 07:33:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_0_12 [2023-04-03 07:33:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_0_13 [2023-04-03 07:33:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_0_14 [2023-04-03 07:33:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_0_15 [2023-04-03 07:33:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_0_18 [2023-04-03 07:33:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_0_21 [2023-04-03 07:33:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_0_22 [2023-04-03 07:33:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_0_25 [2023-04-03 07:33:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_0_26 [2023-04-03 07:33:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_0_27 [2023-04-03 07:33:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_0_28 [2023-04-03 07:33:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_0_29 [2023-04-03 07:33:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_0_3 [2023-04-03 07:33:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_0_30 [2023-04-03 07:33:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_0_31 [2023-04-03 07:33:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_0_32 [2023-04-03 07:33:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_0_35 [2023-04-03 07:33:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_0_38 [2023-04-03 07:33:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_0_39 [2023-04-03 07:33:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_0_7 [2023-04-03 07:33:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_1_11 [2023-04-03 07:33:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_1_12 [2023-04-03 07:33:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_1_13 [2023-04-03 07:33:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_1_14 [2023-04-03 07:33:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_1_17 [2023-04-03 07:33:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_1_3 [2023-04-03 07:33:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_1_7 [2023-04-03 07:33:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_1_8 [2023-04-03 07:33:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_entry_EMGentry_6 [2023-04-03 07:33:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 07:33:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_external_data [2023-04-03 07:33:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_dummy_resourceless_instance_0 [2023-04-03 07:33:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_struct_driver_info_dummy_resourceless_instance_1 [2023-04-03 07:33:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-04-03 07:33:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-04-03 07:33:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2023-04-03 07:33:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_1 [2023-04-03 07:33:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_5 [2023-04-03 07:33:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_1 [2023-04-03 07:33:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_5 [2023-04-03 07:33:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_1 [2023-04-03 07:33:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_15 [2023-04-03 07:33:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_3_1 [2023-04-03 07:33:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_3_4 [2023-04-03 07:33:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister [2023-04-03 07:33:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_dummy_factory_3 [2023-04-03 07:33:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_callback_2_6 [2023-04-03 07:33:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_post_2_9 [2023-04-03 07:33:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_pre_2_10 [2023-04-03 07:33:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_probe_2_13 [2023-04-03 07:33:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_2_4 [2023-04-03 07:33:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_resume_2_7 [2023-04-03 07:33:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_suspend_2_8 [2023-04-03 07:33:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver [2023-04-03 07:33:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_usb_instance_2 [2023-04-03 07:33:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-03 07:33:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-04-03 07:33:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xzalloc [2023-04-03 07:33:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-04-03 07:33:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-03 07:33:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spi_alloc_master [2023-04-03 07:33:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-03 07:33:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-04-03 07:33:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-04-03 07:33:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-04-03 07:33:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-04-03 07:33:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-04-03 07:33:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-04-03 07:33:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2023-04-03 07:33:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2023-04-03 07:33:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2023-04-03 07:33:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2023-04-03 07:33:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 07:33:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-03 07:33:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 07:33:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-03 07:33:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 07:33:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-03 07:33:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-03 07:33:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2023-04-03 07:33:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2023-04-03 07:33:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 07:33:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-03 07:33:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_thread_create [2023-04-03 07:33:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_thread_create_N [2023-04-03 07:33:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_thread_join [2023-04-03 07:33:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_thread_join_N [2023-04-03 07:33:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-04-03 07:33:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-04-03 07:33:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2023-04-03 07:33:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-04-03 07:33:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-04-03 07:33:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock__xmit_lock_of_netdev_queue [2023-04-03 07:33:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock__xmit_lock_of_netdev_queue [2023-04-03 07:33:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock__xmit_lock_of_netdev_queue [2023-04-03 07:33:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_wait__xmit_lock_of_netdev_queue [2023-04-03 07:33:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked__xmit_lock_of_netdev_queue [2023-04-03 07:33:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_can_lock__xmit_lock_of_netdev_queue [2023-04-03 07:33:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_contended__xmit_lock_of_netdev_queue [2023-04-03 07:33:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_lock__xmit_lock_of_netdev_queue [2023-04-03 07:33:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_addr_list_lock_of_net_device [2023-04-03 07:33:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_addr_list_lock_of_net_device [2023-04-03 07:33:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock_addr_list_lock_of_net_device [2023-04-03 07:33:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_wait_addr_list_lock_of_net_device [2023-04-03 07:33:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_addr_list_lock_of_net_device [2023-04-03 07:33:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_can_lock_addr_list_lock_of_net_device [2023-04-03 07:33:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_contended_addr_list_lock_of_net_device [2023-04-03 07:33:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_lock_addr_list_lock_of_net_device [2023-04-03 07:33:08,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_alloc_lock_of_task_struct [2023-04-03 07:33:08,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_alloc_lock_of_task_struct [2023-04-03 07:33:08,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock_alloc_lock_of_task_struct [2023-04-03 07:33:08,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_wait_alloc_lock_of_task_struct [2023-04-03 07:33:08,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_alloc_lock_of_task_struct [2023-04-03 07:33:08,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_can_lock_alloc_lock_of_task_struct [2023-04-03 07:33:08,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_contended_alloc_lock_of_task_struct [2023-04-03 07:33:08,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_lock_alloc_lock_of_task_struct [2023-04-03 07:33:08,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_i_lock_of_inode [2023-04-03 07:33:08,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_i_lock_of_inode [2023-04-03 07:33:08,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock_i_lock_of_inode [2023-04-03 07:33:08,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_wait_i_lock_of_inode [2023-04-03 07:33:08,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_i_lock_of_inode [2023-04-03 07:33:08,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_can_lock_i_lock_of_inode [2023-04-03 07:33:08,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_contended_i_lock_of_inode [2023-04-03 07:33:08,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_lock_i_lock_of_inode [2023-04-03 07:33:08,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock [2023-04-03 07:33:08,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock [2023-04-03 07:33:08,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock_lock [2023-04-03 07:33:08,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_wait_lock [2023-04-03 07:33:08,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_lock [2023-04-03 07:33:08,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_can_lock_lock [2023-04-03 07:33:08,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_contended_lock [2023-04-03 07:33:08,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_lock_lock [2023-04-03 07:33:08,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_NOT_ARG_SIGN [2023-04-03 07:33:08,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_NOT_ARG_SIGN [2023-04-03 07:33:08,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock_lock_of_NOT_ARG_SIGN [2023-04-03 07:33:08,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_wait_lock_of_NOT_ARG_SIGN [2023-04-03 07:33:08,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_lock_of_NOT_ARG_SIGN [2023-04-03 07:33:08,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_can_lock_lock_of_NOT_ARG_SIGN [2023-04-03 07:33:08,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_contended_lock_of_NOT_ARG_SIGN [2023-04-03 07:33:08,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_lock_lock_of_NOT_ARG_SIGN [2023-04-03 07:33:08,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lru_lock_of_netns_frags [2023-04-03 07:33:08,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lru_lock_of_netns_frags [2023-04-03 07:33:08,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock_lru_lock_of_netns_frags [2023-04-03 07:33:08,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_wait_lru_lock_of_netns_frags [2023-04-03 07:33:08,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_lru_lock_of_netns_frags [2023-04-03 07:33:08,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_can_lock_lru_lock_of_netns_frags [2023-04-03 07:33:08,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_contended_lru_lock_of_netns_frags [2023-04-03 07:33:08,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_lock_lru_lock_of_netns_frags [2023-04-03 07:33:08,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_node_size_lock_of_pglist_data [2023-04-03 07:33:08,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_node_size_lock_of_pglist_data [2023-04-03 07:33:08,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock_node_size_lock_of_pglist_data [2023-04-03 07:33:08,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_wait_node_size_lock_of_pglist_data [2023-04-03 07:33:08,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_node_size_lock_of_pglist_data [2023-04-03 07:33:08,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_can_lock_node_size_lock_of_pglist_data [2023-04-03 07:33:08,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_contended_node_size_lock_of_pglist_data [2023-04-03 07:33:08,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_lock_node_size_lock_of_pglist_data [2023-04-03 07:33:08,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_ptl [2023-04-03 07:33:08,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_ptl [2023-04-03 07:33:08,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock_ptl [2023-04-03 07:33:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_wait_ptl [2023-04-03 07:33:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_ptl [2023-04-03 07:33:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_can_lock_ptl [2023-04-03 07:33:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_contended_ptl [2023-04-03 07:33:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_lock_ptl [2023-04-03 07:33:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock_rfe_ctl_lock_of_smsc75xx_priv [2023-04-03 07:33:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_wait_rfe_ctl_lock_of_smsc75xx_priv [2023-04-03 07:33:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_rfe_ctl_lock_of_smsc75xx_priv [2023-04-03 07:33:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_can_lock_rfe_ctl_lock_of_smsc75xx_priv [2023-04-03 07:33:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_contended_rfe_ctl_lock_of_smsc75xx_priv [2023-04-03 07:33:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_lock_rfe_ctl_lock_of_smsc75xx_priv [2023-04-03 07:33:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_siglock_of_sighand_struct [2023-04-03 07:33:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_siglock_of_sighand_struct [2023-04-03 07:33:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock_siglock_of_sighand_struct [2023-04-03 07:33:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_wait_siglock_of_sighand_struct [2023-04-03 07:33:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_siglock_of_sighand_struct [2023-04-03 07:33:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_can_lock_siglock_of_sighand_struct [2023-04-03 07:33:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_contended_siglock_of_sighand_struct [2023-04-03 07:33:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_lock_siglock_of_sighand_struct [2023-04-03 07:33:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_tx_global_lock_of_net_device [2023-04-03 07:33:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_global_lock_of_net_device [2023-04-03 07:33:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock_tx_global_lock_of_net_device [2023-04-03 07:33:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_wait_tx_global_lock_of_net_device [2023-04-03 07:33:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_tx_global_lock_of_net_device [2023-04-03 07:33:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_can_lock_tx_global_lock_of_net_device [2023-04-03 07:33:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_contended_tx_global_lock_of_net_device [2023-04-03 07:33:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_lock_tx_global_lock_of_net_device [2023-04-03 07:33:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2023-04-03 07:33:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 07:33:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 07:33:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-03 07:33:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-03 07:33:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 07:33:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2023-04-03 07:33:08,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-03 07:33:08,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-03 07:33:08,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 07:33:08,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 07:33:08,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-03 07:33:08,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 07:33:08,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-03 07:33:08,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-03 07:33:08,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-03 07:33:08,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-03 07:33:09,347 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 07:33:09,356 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 07:33:14,074 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint mainFINAL: assume true; [2023-04-03 07:33:14,454 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-03 07:33:17,646 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 07:33:20,337 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 07:33:20,338 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-03 07:33:20,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 07:33:20 BoogieIcfgContainer [2023-04-03 07:33:20,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 07:33:20,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 07:33:20,347 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 07:33:20,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 07:33:20,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 07:33:04" (1/3) ... [2023-04-03 07:33:20,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a0c313 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 07:33:20, skipping insertion in model container [2023-04-03 07:33:20,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 07:33:07" (2/3) ... [2023-04-03 07:33:20,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a0c313 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 07:33:20, skipping insertion in model container [2023-04-03 07:33:20,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 07:33:20" (3/3) ... [2023-04-03 07:33:20,352 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i [2023-04-03 07:33:20,371 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 07:33:20,371 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-04-03 07:33:20,479 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 07:33:20,486 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;@f3ba00, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 07:33:20,486 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-04-03 07:33:20,500 INFO L276 IsEmpty]: Start isEmpty. Operand has 2803 states, 1600 states have (on average 1.2675) internal successors, (2028), 1614 states have internal predecessors, (2028), 854 states have call successors, (854), 246 states have call predecessors, (854), 244 states have return successors, (846), 839 states have call predecessors, (846), 846 states have call successors, (846) [2023-04-03 07:33:20,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-04-03 07:33:20,521 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:33:20,522 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, 1, 1, 1, 1, 1] [2023-04-03 07:33:20,523 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:33:20,527 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:33:20,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1832615519, now seen corresponding path program 1 times [2023-04-03 07:33:20,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:33:20,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603980962] [2023-04-03 07:33:20,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:33:20,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:33:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:33:21,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2023-04-03 07:33:21,636 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:33:21,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603980962] [2023-04-03 07:33:21,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603980962] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:33:21,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:33:21,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 07:33:21,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13857489] [2023-04-03 07:33:21,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:33:21,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 07:33:21,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:33:21,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 07:33:21,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 07:33:21,686 INFO L87 Difference]: Start difference. First operand has 2803 states, 1600 states have (on average 1.2675) internal successors, (2028), 1614 states have internal predecessors, (2028), 854 states have call successors, (854), 246 states have call predecessors, (854), 244 states have return successors, (846), 839 states have call predecessors, (846), 846 states have call successors, (846) Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-04-03 07:33:23,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:33:23,435 INFO L93 Difference]: Finished difference Result 7081 states and 9877 transitions. [2023-04-03 07:33:23,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 07:33:23,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 208 [2023-04-03 07:33:23,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:33:23,475 INFO L225 Difference]: With dead ends: 7081 [2023-04-03 07:33:23,475 INFO L226 Difference]: Without dead ends: 4672 [2023-04-03 07:33:23,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 07:33:23,493 INFO L413 NwaCegarLoop]: 3052 mSDtfsCounter, 3163 mSDsluCounter, 2970 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3163 SdHoareTripleChecker+Valid, 6022 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-03 07:33:23,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3163 Valid, 6022 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-03 07:33:23,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4672 states. [2023-04-03 07:33:23,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4672 to 4668. [2023-04-03 07:33:23,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4668 states, 2774 states have (on average 1.2851478010093726) internal successors, (3565), 2791 states have internal predecessors, (3565), 1447 states have call successors, (1447), 447 states have call predecessors, (1447), 444 states have return successors, (1442), 1434 states have call predecessors, (1442), 1442 states have call successors, (1442) [2023-04-03 07:33:23,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4668 states to 4668 states and 6454 transitions. [2023-04-03 07:33:23,839 INFO L78 Accepts]: Start accepts. Automaton has 4668 states and 6454 transitions. Word has length 208 [2023-04-03 07:33:23,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:33:23,842 INFO L495 AbstractCegarLoop]: Abstraction has 4668 states and 6454 transitions. [2023-04-03 07:33:23,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-04-03 07:33:23,843 INFO L276 IsEmpty]: Start isEmpty. Operand 4668 states and 6454 transitions. [2023-04-03 07:33:23,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-04-03 07:33:23,852 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:33:23,853 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:33:23,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 07:33:23,853 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:33:23,854 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:33:23,854 INFO L85 PathProgramCache]: Analyzing trace with hash 740124810, now seen corresponding path program 1 times [2023-04-03 07:33:23,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:33:23,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125438399] [2023-04-03 07:33:23,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:33:23,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:33:24,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:33:24,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2023-04-03 07:33:24,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:33:24,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125438399] [2023-04-03 07:33:24,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125438399] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:33:24,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:33:24,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 07:33:24,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119393528] [2023-04-03 07:33:24,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:33:24,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 07:33:24,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:33:24,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 07:33:24,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 07:33:24,440 INFO L87 Difference]: Start difference. First operand 4668 states and 6454 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-04-03 07:33:26,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:33:26,091 INFO L93 Difference]: Finished difference Result 11062 states and 15344 transitions. [2023-04-03 07:33:26,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 07:33:26,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 222 [2023-04-03 07:33:26,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:33:26,130 INFO L225 Difference]: With dead ends: 11062 [2023-04-03 07:33:26,131 INFO L226 Difference]: Without dead ends: 6442 [2023-04-03 07:33:26,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 07:33:26,155 INFO L413 NwaCegarLoop]: 3205 mSDtfsCounter, 2871 mSDsluCounter, 2943 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2871 SdHoareTripleChecker+Valid, 6148 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-03 07:33:26,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2871 Valid, 6148 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-03 07:33:26,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6442 states. [2023-04-03 07:33:26,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6442 to 6411. [2023-04-03 07:33:26,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6411 states, 3807 states have (on average 1.281323877068558) internal successors, (4878), 3835 states have internal predecessors, (4878), 2012 states have call successors, (2012), 592 states have call predecessors, (2012), 589 states have return successors, (2010), 1990 states have call predecessors, (2010), 2007 states have call successors, (2010) [2023-04-03 07:33:26,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6411 states to 6411 states and 8900 transitions. [2023-04-03 07:33:26,588 INFO L78 Accepts]: Start accepts. Automaton has 6411 states and 8900 transitions. Word has length 222 [2023-04-03 07:33:26,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:33:26,591 INFO L495 AbstractCegarLoop]: Abstraction has 6411 states and 8900 transitions. [2023-04-03 07:33:26,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-04-03 07:33:26,592 INFO L276 IsEmpty]: Start isEmpty. Operand 6411 states and 8900 transitions. [2023-04-03 07:33:26,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2023-04-03 07:33:26,603 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:33:26,603 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 4, 4, 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] [2023-04-03 07:33:26,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 07:33:26,603 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:33:26,604 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:33:26,604 INFO L85 PathProgramCache]: Analyzing trace with hash -639026010, now seen corresponding path program 1 times [2023-04-03 07:33:26,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:33:26,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285986268] [2023-04-03 07:33:26,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:33:26,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:33:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:33:27,415 INFO L134 CoverageAnalysis]: Checked inductivity of 1267 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1258 trivial. 0 not checked. [2023-04-03 07:33:27,415 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:33:27,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285986268] [2023-04-03 07:33:27,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285986268] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:33:27,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:33:27,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:33:27,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5744284] [2023-04-03 07:33:27,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:33:27,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:33:27,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:33:27,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:33:27,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:33:27,418 INFO L87 Difference]: Start difference. First operand 6411 states and 8900 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-04-03 07:33:29,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:33:29,133 INFO L93 Difference]: Finished difference Result 6417 states and 8905 transitions. [2023-04-03 07:33:29,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:33:29,134 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 282 [2023-04-03 07:33:29,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:33:29,176 INFO L225 Difference]: With dead ends: 6417 [2023-04-03 07:33:29,176 INFO L226 Difference]: Without dead ends: 6415 [2023-04-03 07:33:29,181 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 [2023-04-03 07:33:29,184 INFO L413 NwaCegarLoop]: 3021 mSDtfsCounter, 3322 mSDsluCounter, 6030 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3333 SdHoareTripleChecker+Valid, 9051 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-03 07:33:29,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3333 Valid, 9051 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-03 07:33:29,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6415 states. [2023-04-03 07:33:29,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6415 to 6415. [2023-04-03 07:33:29,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6415 states, 3810 states have (on average 1.2811023622047244) internal successors, (4881), 3838 states have internal predecessors, (4881), 2012 states have call successors, (2012), 593 states have call predecessors, (2012), 590 states have return successors, (2010), 1990 states have call predecessors, (2010), 2007 states have call successors, (2010) [2023-04-03 07:33:29,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6415 states to 6415 states and 8903 transitions. [2023-04-03 07:33:29,565 INFO L78 Accepts]: Start accepts. Automaton has 6415 states and 8903 transitions. Word has length 282 [2023-04-03 07:33:29,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:33:29,567 INFO L495 AbstractCegarLoop]: Abstraction has 6415 states and 8903 transitions. [2023-04-03 07:33:29,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-04-03 07:33:29,567 INFO L276 IsEmpty]: Start isEmpty. Operand 6415 states and 8903 transitions. [2023-04-03 07:33:29,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2023-04-03 07:33:29,575 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:33:29,575 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:33:29,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 07:33:29,575 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:33:29,576 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:33:29,576 INFO L85 PathProgramCache]: Analyzing trace with hash 941365766, now seen corresponding path program 1 times [2023-04-03 07:33:29,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:33:29,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128865717] [2023-04-03 07:33:29,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:33:29,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:33:29,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:33:30,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1269 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1258 trivial. 0 not checked. [2023-04-03 07:33:30,224 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:33:30,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128865717] [2023-04-03 07:33:30,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128865717] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:33:30,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:33:30,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:33:30,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333550788] [2023-04-03 07:33:30,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:33:30,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:33:30,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:33:30,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:33:30,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:33:30,226 INFO L87 Difference]: Start difference. First operand 6415 states and 8903 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-04-03 07:33:31,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:33:31,893 INFO L93 Difference]: Finished difference Result 6421 states and 8908 transitions. [2023-04-03 07:33:31,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:33:31,894 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 287 [2023-04-03 07:33:31,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:33:31,938 INFO L225 Difference]: With dead ends: 6421 [2023-04-03 07:33:31,938 INFO L226 Difference]: Without dead ends: 6419 [2023-04-03 07:33:31,944 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 [2023-04-03 07:33:31,947 INFO L413 NwaCegarLoop]: 3024 mSDtfsCounter, 3317 mSDsluCounter, 6030 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3327 SdHoareTripleChecker+Valid, 9054 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-03 07:33:31,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3327 Valid, 9054 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-03 07:33:31,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6419 states. [2023-04-03 07:33:32,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6419 to 6419. [2023-04-03 07:33:32,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6419 states, 3813 states have (on average 1.2808811959087332) internal successors, (4884), 3841 states have internal predecessors, (4884), 2012 states have call successors, (2012), 594 states have call predecessors, (2012), 591 states have return successors, (2010), 1990 states have call predecessors, (2010), 2007 states have call successors, (2010) [2023-04-03 07:33:32,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6419 states to 6419 states and 8906 transitions. [2023-04-03 07:33:32,322 INFO L78 Accepts]: Start accepts. Automaton has 6419 states and 8906 transitions. Word has length 287 [2023-04-03 07:33:32,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:33:32,323 INFO L495 AbstractCegarLoop]: Abstraction has 6419 states and 8906 transitions. [2023-04-03 07:33:32,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-04-03 07:33:32,323 INFO L276 IsEmpty]: Start isEmpty. Operand 6419 states and 8906 transitions. [2023-04-03 07:33:32,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2023-04-03 07:33:32,331 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:33:32,331 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, 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] [2023-04-03 07:33:32,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 07:33:32,331 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:33:32,332 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:33:32,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1407602586, now seen corresponding path program 1 times [2023-04-03 07:33:32,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:33:32,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380101721] [2023-04-03 07:33:32,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:33:32,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:33:32,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:33:32,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 1262 trivial. 0 not checked. [2023-04-03 07:33:32,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:33:32,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380101721] [2023-04-03 07:33:32,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380101721] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:33:32,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:33:32,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:33:32,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33302416] [2023-04-03 07:33:32,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:33:32,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:33:32,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:33:32,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:33:32,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:33:32,917 INFO L87 Difference]: Start difference. First operand 6419 states and 8906 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-04-03 07:33:34,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:33:34,673 INFO L93 Difference]: Finished difference Result 6425 states and 8911 transitions. [2023-04-03 07:33:34,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:33:34,673 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 292 [2023-04-03 07:33:34,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:33:34,706 INFO L225 Difference]: With dead ends: 6425 [2023-04-03 07:33:34,707 INFO L226 Difference]: Without dead ends: 6423 [2023-04-03 07:33:34,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 07:33:34,712 INFO L413 NwaCegarLoop]: 3024 mSDtfsCounter, 3317 mSDsluCounter, 6030 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3326 SdHoareTripleChecker+Valid, 9054 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-03 07:33:34,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3326 Valid, 9054 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-03 07:33:34,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6423 states. [2023-04-03 07:33:35,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6423 to 6423. [2023-04-03 07:33:35,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6423 states, 3816 states have (on average 1.2806603773584906) internal successors, (4887), 3844 states have internal predecessors, (4887), 2012 states have call successors, (2012), 595 states have call predecessors, (2012), 592 states have return successors, (2010), 1990 states have call predecessors, (2010), 2007 states have call successors, (2010) [2023-04-03 07:33:35,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6423 states to 6423 states and 8909 transitions. [2023-04-03 07:33:35,168 INFO L78 Accepts]: Start accepts. Automaton has 6423 states and 8909 transitions. Word has length 292 [2023-04-03 07:33:35,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:33:35,170 INFO L495 AbstractCegarLoop]: Abstraction has 6423 states and 8909 transitions. [2023-04-03 07:33:35,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-04-03 07:33:35,171 INFO L276 IsEmpty]: Start isEmpty. Operand 6423 states and 8909 transitions. [2023-04-03 07:33:35,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2023-04-03 07:33:35,181 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:33:35,182 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, 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] [2023-04-03 07:33:35,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 07:33:35,182 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:33:35,182 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:33:35,183 INFO L85 PathProgramCache]: Analyzing trace with hash -921162298, now seen corresponding path program 1 times [2023-04-03 07:33:35,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:33:35,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866128799] [2023-04-03 07:33:35,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:33:35,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:33:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:33:35,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1285 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1270 trivial. 0 not checked. [2023-04-03 07:33:35,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:33:35,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866128799] [2023-04-03 07:33:35,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866128799] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:33:35,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:33:35,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:33:35,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224896940] [2023-04-03 07:33:35,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:33:35,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:33:35,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:33:35,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:33:35,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:33:35,850 INFO L87 Difference]: Start difference. First operand 6423 states and 8909 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (45), 3 states have call predecessors, (45), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2023-04-03 07:33:37,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:33:37,507 INFO L93 Difference]: Finished difference Result 6429 states and 8914 transitions. [2023-04-03 07:33:37,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:33:37,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (45), 3 states have call predecessors, (45), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 297 [2023-04-03 07:33:37,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:33:37,543 INFO L225 Difference]: With dead ends: 6429 [2023-04-03 07:33:37,543 INFO L226 Difference]: Without dead ends: 6427 [2023-04-03 07:33:37,549 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 [2023-04-03 07:33:37,550 INFO L413 NwaCegarLoop]: 3024 mSDtfsCounter, 3317 mSDsluCounter, 6030 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3325 SdHoareTripleChecker+Valid, 9054 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-03 07:33:37,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3325 Valid, 9054 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-03 07:33:37,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6427 states. [2023-04-03 07:33:37,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6427 to 6427. [2023-04-03 07:33:37,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6427 states, 3819 states have (on average 1.2804399057344855) internal successors, (4890), 3847 states have internal predecessors, (4890), 2012 states have call successors, (2012), 596 states have call predecessors, (2012), 593 states have return successors, (2010), 1990 states have call predecessors, (2010), 2007 states have call successors, (2010) [2023-04-03 07:33:37,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6427 states to 6427 states and 8912 transitions. [2023-04-03 07:33:37,997 INFO L78 Accepts]: Start accepts. Automaton has 6427 states and 8912 transitions. Word has length 297 [2023-04-03 07:33:37,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:33:37,998 INFO L495 AbstractCegarLoop]: Abstraction has 6427 states and 8912 transitions. [2023-04-03 07:33:37,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (45), 3 states have call predecessors, (45), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2023-04-03 07:33:37,999 INFO L276 IsEmpty]: Start isEmpty. Operand 6427 states and 8912 transitions. [2023-04-03 07:33:38,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2023-04-03 07:33:38,009 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:33:38,009 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, 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] [2023-04-03 07:33:38,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 07:33:38,009 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:33:38,010 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:33:38,010 INFO L85 PathProgramCache]: Analyzing trace with hash 210641958, now seen corresponding path program 1 times [2023-04-03 07:33:38,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:33:38,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521400649] [2023-04-03 07:33:38,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:33:38,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:33:38,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:33:38,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1299 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1282 trivial. 0 not checked. [2023-04-03 07:33:38,589 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:33:38,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521400649] [2023-04-03 07:33:38,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521400649] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:33:38,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:33:38,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:33:38,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913188699] [2023-04-03 07:33:38,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:33:38,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:33:38,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:33:38,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:33:38,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:33:38,591 INFO L87 Difference]: Start difference. First operand 6427 states and 8912 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-04-03 07:33:40,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:33:40,058 INFO L93 Difference]: Finished difference Result 6433 states and 8917 transitions. [2023-04-03 07:33:40,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:33:40,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 302 [2023-04-03 07:33:40,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:33:40,088 INFO L225 Difference]: With dead ends: 6433 [2023-04-03 07:33:40,088 INFO L226 Difference]: Without dead ends: 6431 [2023-04-03 07:33:40,094 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 [2023-04-03 07:33:40,094 INFO L413 NwaCegarLoop]: 3024 mSDtfsCounter, 3317 mSDsluCounter, 6030 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3324 SdHoareTripleChecker+Valid, 9054 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-03 07:33:40,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3324 Valid, 9054 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-03 07:33:40,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6431 states. [2023-04-03 07:33:40,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6431 to 6431. [2023-04-03 07:33:40,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6431 states, 3822 states have (on average 1.2802197802197801) internal successors, (4893), 3850 states have internal predecessors, (4893), 2012 states have call successors, (2012), 597 states have call predecessors, (2012), 594 states have return successors, (2010), 1990 states have call predecessors, (2010), 2007 states have call successors, (2010) [2023-04-03 07:33:40,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6431 states to 6431 states and 8915 transitions. [2023-04-03 07:33:40,594 INFO L78 Accepts]: Start accepts. Automaton has 6431 states and 8915 transitions. Word has length 302 [2023-04-03 07:33:40,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:33:40,595 INFO L495 AbstractCegarLoop]: Abstraction has 6431 states and 8915 transitions. [2023-04-03 07:33:40,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-04-03 07:33:40,595 INFO L276 IsEmpty]: Start isEmpty. Operand 6431 states and 8915 transitions. [2023-04-03 07:33:40,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2023-04-03 07:33:40,606 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:33:40,607 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 6, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:33:40,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-03 07:33:40,608 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:33:40,608 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:33:40,608 INFO L85 PathProgramCache]: Analyzing trace with hash -125415264, now seen corresponding path program 1 times [2023-04-03 07:33:40,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:33:40,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483126994] [2023-04-03 07:33:40,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:33:40,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:33:40,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:33:41,169 INFO L134 CoverageAnalysis]: Checked inductivity of 1323 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 1310 trivial. 0 not checked. [2023-04-03 07:33:41,170 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:33:41,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483126994] [2023-04-03 07:33:41,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483126994] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:33:41,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:33:41,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:33:41,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430893579] [2023-04-03 07:33:41,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:33:41,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:33:41,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:33:41,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:33:41,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:33:41,172 INFO L87 Difference]: Start difference. First operand 6431 states and 8915 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (55), 3 states have call predecessors, (55), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2023-04-03 07:33:42,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:33:42,596 INFO L93 Difference]: Finished difference Result 6437 states and 8920 transitions. [2023-04-03 07:33:42,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:33:42,596 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), 2 states have call successors, (55), 3 states have call predecessors, (55), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 330 [2023-04-03 07:33:42,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:33:42,622 INFO L225 Difference]: With dead ends: 6437 [2023-04-03 07:33:42,622 INFO L226 Difference]: Without dead ends: 6435 [2023-04-03 07:33:42,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 07:33:42,628 INFO L413 NwaCegarLoop]: 3024 mSDtfsCounter, 3322 mSDsluCounter, 6030 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3328 SdHoareTripleChecker+Valid, 9054 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-03 07:33:42,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3328 Valid, 9054 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-03 07:33:42,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6435 states. [2023-04-03 07:33:43,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6435 to 6435. [2023-04-03 07:33:43,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6435 states, 3825 states have (on average 1.28) internal successors, (4896), 3853 states have internal predecessors, (4896), 2012 states have call successors, (2012), 598 states have call predecessors, (2012), 595 states have return successors, (2010), 1990 states have call predecessors, (2010), 2007 states have call successors, (2010) [2023-04-03 07:33:43,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6435 states to 6435 states and 8918 transitions. [2023-04-03 07:33:43,133 INFO L78 Accepts]: Start accepts. Automaton has 6435 states and 8918 transitions. Word has length 330 [2023-04-03 07:33:43,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:33:43,134 INFO L495 AbstractCegarLoop]: Abstraction has 6435 states and 8918 transitions. [2023-04-03 07:33:43,134 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), 2 states have call successors, (55), 3 states have call predecessors, (55), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2023-04-03 07:33:43,134 INFO L276 IsEmpty]: Start isEmpty. Operand 6435 states and 8918 transitions. [2023-04-03 07:33:43,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2023-04-03 07:33:43,145 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:33:43,145 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, 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] [2023-04-03 07:33:43,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-03 07:33:43,146 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:33:43,146 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:33:43,146 INFO L85 PathProgramCache]: Analyzing trace with hash -163145754, now seen corresponding path program 1 times [2023-04-03 07:33:43,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:33:43,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140208549] [2023-04-03 07:33:43,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:33:43,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:33:43,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:33:43,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1339 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 1318 trivial. 0 not checked. [2023-04-03 07:33:43,715 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:33:43,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140208549] [2023-04-03 07:33:43,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140208549] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:33:43,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:33:43,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:33:43,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633690983] [2023-04-03 07:33:43,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:33:43,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:33:43,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:33:43,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:33:43,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:33:43,718 INFO L87 Difference]: Start difference. First operand 6435 states and 8918 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2023-04-03 07:33:45,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:33:45,295 INFO L93 Difference]: Finished difference Result 6441 states and 8923 transitions. [2023-04-03 07:33:45,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:33:45,295 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 312 [2023-04-03 07:33:45,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:33:45,319 INFO L225 Difference]: With dead ends: 6441 [2023-04-03 07:33:45,319 INFO L226 Difference]: Without dead ends: 6439 [2023-04-03 07:33:45,324 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 [2023-04-03 07:33:45,324 INFO L413 NwaCegarLoop]: 3024 mSDtfsCounter, 3317 mSDsluCounter, 6030 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3322 SdHoareTripleChecker+Valid, 9054 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-03 07:33:45,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3322 Valid, 9054 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-03 07:33:45,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6439 states. [2023-04-03 07:33:45,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6439 to 6439. [2023-04-03 07:33:45,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6439 states, 3828 states have (on average 1.2797805642633229) internal successors, (4899), 3856 states have internal predecessors, (4899), 2012 states have call successors, (2012), 599 states have call predecessors, (2012), 596 states have return successors, (2010), 1990 states have call predecessors, (2010), 2007 states have call successors, (2010) [2023-04-03 07:33:45,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6439 states to 6439 states and 8921 transitions. [2023-04-03 07:33:45,814 INFO L78 Accepts]: Start accepts. Automaton has 6439 states and 8921 transitions. Word has length 312 [2023-04-03 07:33:45,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:33:45,815 INFO L495 AbstractCegarLoop]: Abstraction has 6439 states and 8921 transitions. [2023-04-03 07:33:45,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2023-04-03 07:33:45,815 INFO L276 IsEmpty]: Start isEmpty. Operand 6439 states and 8921 transitions. [2023-04-03 07:33:45,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2023-04-03 07:33:45,829 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:33:45,829 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 8, 7, 7, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:33:45,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-03 07:33:45,829 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:33:45,830 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:33:45,830 INFO L85 PathProgramCache]: Analyzing trace with hash -44863311, now seen corresponding path program 1 times [2023-04-03 07:33:45,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:33:45,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464101793] [2023-04-03 07:33:45,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:33:45,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:33:45,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:33:46,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1370 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1354 trivial. 0 not checked. [2023-04-03 07:33:46,323 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:33:46,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464101793] [2023-04-03 07:33:46,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464101793] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:33:46,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:33:46,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:33:46,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121798646] [2023-04-03 07:33:46,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:33:46,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:33:46,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:33:46,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:33:46,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:33:46,325 INFO L87 Difference]: Start difference. First operand 6439 states and 8921 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (57), 3 states have call predecessors, (57), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2023-04-03 07:33:47,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:33:47,770 INFO L93 Difference]: Finished difference Result 6445 states and 8926 transitions. [2023-04-03 07:33:47,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:33:47,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (57), 3 states have call predecessors, (57), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 339 [2023-04-03 07:33:47,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:33:47,793 INFO L225 Difference]: With dead ends: 6445 [2023-04-03 07:33:47,793 INFO L226 Difference]: Without dead ends: 6443 [2023-04-03 07:33:47,797 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 [2023-04-03 07:33:47,798 INFO L413 NwaCegarLoop]: 3024 mSDtfsCounter, 3323 mSDsluCounter, 6030 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3327 SdHoareTripleChecker+Valid, 9054 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-03 07:33:47,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3327 Valid, 9054 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-03 07:33:47,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6443 states. [2023-04-03 07:33:48,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6443 to 6443. [2023-04-03 07:33:48,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6443 states, 3831 states have (on average 1.2795614722004698) internal successors, (4902), 3859 states have internal predecessors, (4902), 2012 states have call successors, (2012), 600 states have call predecessors, (2012), 597 states have return successors, (2010), 1990 states have call predecessors, (2010), 2007 states have call successors, (2010) [2023-04-03 07:33:48,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6443 states to 6443 states and 8924 transitions. [2023-04-03 07:33:48,263 INFO L78 Accepts]: Start accepts. Automaton has 6443 states and 8924 transitions. Word has length 339 [2023-04-03 07:33:48,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:33:48,263 INFO L495 AbstractCegarLoop]: Abstraction has 6443 states and 8924 transitions. [2023-04-03 07:33:48,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (57), 3 states have call predecessors, (57), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2023-04-03 07:33:48,264 INFO L276 IsEmpty]: Start isEmpty. Operand 6443 states and 8924 transitions. [2023-04-03 07:33:48,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2023-04-03 07:33:48,276 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:33:48,276 INFO L195 NwaCegarLoop]: trace histogram [22, 17, 17, 17, 17, 17, 17, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:33:48,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-03 07:33:48,276 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:33:48,277 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:33:48,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1514621001, now seen corresponding path program 1 times [2023-04-03 07:33:48,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:33:48,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133841116] [2023-04-03 07:33:48,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:33:48,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:33:48,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:33:48,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1314 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1306 trivial. 0 not checked. [2023-04-03 07:33:48,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:33:48,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133841116] [2023-04-03 07:33:48,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133841116] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:33:48,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:33:48,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 07:33:48,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850210937] [2023-04-03 07:33:48,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:33:48,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 07:33:48,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:33:48,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 07:33:48,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 07:33:48,702 INFO L87 Difference]: Start difference. First operand 6443 states and 8924 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (49), 3 states have call predecessors, (49), 2 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2023-04-03 07:33:50,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:33:50,670 INFO L93 Difference]: Finished difference Result 13047 states and 18050 transitions. [2023-04-03 07:33:50,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 07:33:50,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (49), 3 states have call predecessors, (49), 2 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 321 [2023-04-03 07:33:50,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:33:50,709 INFO L225 Difference]: With dead ends: 13047 [2023-04-03 07:33:50,710 INFO L226 Difference]: Without dead ends: 8578 [2023-04-03 07:33:50,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 07:33:50,734 INFO L413 NwaCegarLoop]: 5636 mSDtfsCounter, 2911 mSDsluCounter, 2945 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2911 SdHoareTripleChecker+Valid, 8581 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-03 07:33:50,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2911 Valid, 8581 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 989 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-03 07:33:50,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8578 states. [2023-04-03 07:33:51,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8578 to 8515. [2023-04-03 07:33:51,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8515 states, 5070 states have (on average 1.2826429980276135) internal successors, (6503), 5108 states have internal predecessors, (6503), 2657 states have call successors, (2657), 789 states have call predecessors, (2657), 785 states have return successors, (2657), 2626 states have call predecessors, (2657), 2652 states have call successors, (2657) [2023-04-03 07:33:51,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8515 states to 8515 states and 11817 transitions. [2023-04-03 07:33:51,450 INFO L78 Accepts]: Start accepts. Automaton has 8515 states and 11817 transitions. Word has length 321 [2023-04-03 07:33:51,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:33:51,451 INFO L495 AbstractCegarLoop]: Abstraction has 8515 states and 11817 transitions. [2023-04-03 07:33:51,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (49), 3 states have call predecessors, (49), 2 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2023-04-03 07:33:51,451 INFO L276 IsEmpty]: Start isEmpty. Operand 8515 states and 11817 transitions. [2023-04-03 07:33:51,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2023-04-03 07:33:51,464 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:33:51,464 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 9, 8, 8, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:33:51,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-03 07:33:51,465 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:33:51,465 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:33:51,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1988320027, now seen corresponding path program 1 times [2023-04-03 07:33:51,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:33:51,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446113810] [2023-04-03 07:33:51,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:33:51,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:33:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:33:51,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1400 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1382 trivial. 0 not checked. [2023-04-03 07:33:51,983 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:33:51,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446113810] [2023-04-03 07:33:51,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446113810] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:33:51,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:33:51,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:33:51,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091253586] [2023-04-03 07:33:51,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:33:51,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:33:51,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:33:51,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:33:51,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:33:51,985 INFO L87 Difference]: Start difference. First operand 8515 states and 11817 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (58), 3 states have call predecessors, (58), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2023-04-03 07:33:53,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:33:53,716 INFO L93 Difference]: Finished difference Result 8521 states and 11822 transitions. [2023-04-03 07:33:53,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:33:53,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (58), 3 states have call predecessors, (58), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 344 [2023-04-03 07:33:53,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:33:53,744 INFO L225 Difference]: With dead ends: 8521 [2023-04-03 07:33:53,745 INFO L226 Difference]: Without dead ends: 8519 [2023-04-03 07:33:53,750 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 [2023-04-03 07:33:53,751 INFO L413 NwaCegarLoop]: 3024 mSDtfsCounter, 3323 mSDsluCounter, 6030 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3326 SdHoareTripleChecker+Valid, 9054 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-03 07:33:53,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3326 Valid, 9054 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-03 07:33:53,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8519 states. [2023-04-03 07:33:54,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8519 to 8519. [2023-04-03 07:33:54,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8519 states, 5073 states have (on average 1.2824758525527302) internal successors, (6506), 5111 states have internal predecessors, (6506), 2657 states have call successors, (2657), 790 states have call predecessors, (2657), 786 states have return successors, (2657), 2626 states have call predecessors, (2657), 2652 states have call successors, (2657) [2023-04-03 07:33:54,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8519 states to 8519 states and 11820 transitions. [2023-04-03 07:33:54,420 INFO L78 Accepts]: Start accepts. Automaton has 8519 states and 11820 transitions. Word has length 344 [2023-04-03 07:33:54,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:33:54,421 INFO L495 AbstractCegarLoop]: Abstraction has 8519 states and 11820 transitions. [2023-04-03 07:33:54,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (58), 3 states have call predecessors, (58), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2023-04-03 07:33:54,422 INFO L276 IsEmpty]: Start isEmpty. Operand 8519 states and 11820 transitions. [2023-04-03 07:33:54,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2023-04-03 07:33:54,436 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:33:54,436 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 10, 9, 9, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:33:54,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-03 07:33:54,437 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:33:54,437 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:33:54,437 INFO L85 PathProgramCache]: Analyzing trace with hash 580249376, now seen corresponding path program 1 times [2023-04-03 07:33:54,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:33:54,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082488736] [2023-04-03 07:33:54,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:33:54,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:33:54,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:33:55,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1435 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 1414 trivial. 0 not checked. [2023-04-03 07:33:55,167 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:33:55,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082488736] [2023-04-03 07:33:55,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082488736] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:33:55,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:33:55,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:33:55,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19752805] [2023-04-03 07:33:55,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:33:55,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:33:55,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:33:55,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:33:55,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:33:55,169 INFO L87 Difference]: Start difference. First operand 8519 states and 11820 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (59), 3 states have call predecessors, (59), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2023-04-03 07:33:56,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:33:56,731 INFO L93 Difference]: Finished difference Result 8553 states and 11841 transitions. [2023-04-03 07:33:56,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:33:56,732 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), 2 states have call successors, (59), 3 states have call predecessors, (59), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 350 [2023-04-03 07:33:56,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:33:56,756 INFO L225 Difference]: With dead ends: 8553 [2023-04-03 07:33:56,756 INFO L226 Difference]: Without dead ends: 8551 [2023-04-03 07:33:56,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 07:33:56,760 INFO L413 NwaCegarLoop]: 3024 mSDtfsCounter, 3228 mSDsluCounter, 6109 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3230 SdHoareTripleChecker+Valid, 9133 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-03 07:33:56,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3230 Valid, 9133 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-03 07:33:56,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8551 states. [2023-04-03 07:33:57,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8551 to 8551. [2023-04-03 07:33:57,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8551 states, 5092 states have (on average 1.2814218381775333) internal successors, (6525), 5130 states have internal predecessors, (6525), 2657 states have call successors, (2657), 803 states have call predecessors, (2657), 799 states have return successors, (2657), 2626 states have call predecessors, (2657), 2652 states have call successors, (2657) [2023-04-03 07:33:57,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8551 states to 8551 states and 11839 transitions. [2023-04-03 07:33:57,433 INFO L78 Accepts]: Start accepts. Automaton has 8551 states and 11839 transitions. Word has length 350 [2023-04-03 07:33:57,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:33:57,434 INFO L495 AbstractCegarLoop]: Abstraction has 8551 states and 11839 transitions. [2023-04-03 07:33:57,434 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), 2 states have call successors, (59), 3 states have call predecessors, (59), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2023-04-03 07:33:57,434 INFO L276 IsEmpty]: Start isEmpty. Operand 8551 states and 11839 transitions. [2023-04-03 07:33:57,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-04-03 07:33:57,448 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:33:57,449 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 11, 10, 10, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:33:57,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-03 07:33:57,449 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:33:57,449 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:33:57,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1677640076, now seen corresponding path program 1 times [2023-04-03 07:33:57,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:33:57,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559767652] [2023-04-03 07:33:57,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:33:57,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:33:57,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:33:57,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1473 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 1450 trivial. 0 not checked. [2023-04-03 07:33:57,975 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:33:57,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559767652] [2023-04-03 07:33:57,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559767652] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:33:57,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:33:57,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:33:57,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227230184] [2023-04-03 07:33:57,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:33:57,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:33:57,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:33:57,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:33:57,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:33:57,977 INFO L87 Difference]: Start difference. First operand 8551 states and 11839 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (60), 3 states have call predecessors, (60), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2023-04-03 07:33:59,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:33:59,684 INFO L93 Difference]: Finished difference Result 8557 states and 11844 transitions. [2023-04-03 07:33:59,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:33:59,685 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), 2 states have call successors, (60), 3 states have call predecessors, (60), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 355 [2023-04-03 07:33:59,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:33:59,714 INFO L225 Difference]: With dead ends: 8557 [2023-04-03 07:33:59,714 INFO L226 Difference]: Without dead ends: 8553 [2023-04-03 07:33:59,720 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 [2023-04-03 07:33:59,720 INFO L413 NwaCegarLoop]: 3024 mSDtfsCounter, 3322 mSDsluCounter, 6030 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3323 SdHoareTripleChecker+Valid, 9054 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-03 07:33:59,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3323 Valid, 9054 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-03 07:33:59,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8553 states. [2023-04-03 07:34:00,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8553 to 8553. [2023-04-03 07:34:00,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8553 states, 5094 states have (on average 1.281115037298783) internal successors, (6526), 5131 states have internal predecessors, (6526), 2657 states have call successors, (2657), 804 states have call predecessors, (2657), 799 states have return successors, (2657), 2626 states have call predecessors, (2657), 2652 states have call successors, (2657) [2023-04-03 07:34:00,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8553 states to 8553 states and 11840 transitions. [2023-04-03 07:34:00,314 INFO L78 Accepts]: Start accepts. Automaton has 8553 states and 11840 transitions. Word has length 355 [2023-04-03 07:34:00,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:34:00,315 INFO L495 AbstractCegarLoop]: Abstraction has 8553 states and 11840 transitions. [2023-04-03 07:34:00,315 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), 2 states have call successors, (60), 3 states have call predecessors, (60), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2023-04-03 07:34:00,315 INFO L276 IsEmpty]: Start isEmpty. Operand 8553 states and 11840 transitions. [2023-04-03 07:34:00,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2023-04-03 07:34:00,332 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:34:00,332 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 12, 11, 11, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:34:00,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-03 07:34:00,332 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:34:00,333 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:34:00,333 INFO L85 PathProgramCache]: Analyzing trace with hash 425753798, now seen corresponding path program 1 times [2023-04-03 07:34:00,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:34:00,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860260323] [2023-04-03 07:34:00,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:34:00,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:34:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:34:00,848 INFO L134 CoverageAnalysis]: Checked inductivity of 1509 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 1478 trivial. 0 not checked. [2023-04-03 07:34:00,848 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:34:00,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860260323] [2023-04-03 07:34:00,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860260323] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:34:00,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:34:00,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:34:00,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750879637] [2023-04-03 07:34:00,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:34:00,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:34:00,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:34:00,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:34:00,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:34:00,850 INFO L87 Difference]: Start difference. First operand 8553 states and 11840 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (53), 3 states have call predecessors, (53), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2023-04-03 07:34:02,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:34:02,273 INFO L93 Difference]: Finished difference Result 8553 states and 11840 transitions. [2023-04-03 07:34:02,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:34:02,274 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (53), 3 states have call predecessors, (53), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 337 [2023-04-03 07:34:02,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:34:02,297 INFO L225 Difference]: With dead ends: 8553 [2023-04-03 07:34:02,297 INFO L226 Difference]: Without dead ends: 8400 [2023-04-03 07:34:02,301 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 [2023-04-03 07:34:02,301 INFO L413 NwaCegarLoop]: 3022 mSDtfsCounter, 3313 mSDsluCounter, 6029 mSDsCounter, 0 mSdLazyCounter, 986 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3313 SdHoareTripleChecker+Valid, 9051 SdHoareTripleChecker+Invalid, 987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-03 07:34:02,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3313 Valid, 9051 Invalid, 987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 986 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-03 07:34:02,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8400 states. [2023-04-03 07:34:02,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8400 to 8400. [2023-04-03 07:34:02,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8400 states, 5025 states have (on average 1.28318407960199) internal successors, (6448), 5053 states have internal predecessors, (6448), 2606 states have call successors, (2606), 770 states have call predecessors, (2606), 767 states have return successors, (2610), 2585 states have call predecessors, (2610), 2605 states have call successors, (2610) [2023-04-03 07:34:02,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8400 states to 8400 states and 11664 transitions. [2023-04-03 07:34:02,888 INFO L78 Accepts]: Start accepts. Automaton has 8400 states and 11664 transitions. Word has length 337 [2023-04-03 07:34:02,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:34:02,889 INFO L495 AbstractCegarLoop]: Abstraction has 8400 states and 11664 transitions. [2023-04-03 07:34:02,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (53), 3 states have call predecessors, (53), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2023-04-03 07:34:02,889 INFO L276 IsEmpty]: Start isEmpty. Operand 8400 states and 11664 transitions. [2023-04-03 07:34:02,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2023-04-03 07:34:02,903 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:34:02,903 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:34:02,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-04-03 07:34:02,904 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:34:02,904 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:34:02,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1690099466, now seen corresponding path program 1 times [2023-04-03 07:34:02,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:34:02,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053033259] [2023-04-03 07:34:02,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:34:02,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:34:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:34:03,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2023-04-03 07:34:03,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:34:03,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053033259] [2023-04-03 07:34:03,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053033259] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:34:03,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:34:03,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:34:03,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761241648] [2023-04-03 07:34:03,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:34:03,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:34:03,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:34:03,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:34:03,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:34:03,455 INFO L87 Difference]: Start difference. First operand 8400 states and 11664 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) [2023-04-03 07:34:06,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:34:06,223 INFO L93 Difference]: Finished difference Result 16854 states and 23389 transitions. [2023-04-03 07:34:06,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 07:34:06,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) Word has length 345 [2023-04-03 07:34:06,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:34:06,311 INFO L225 Difference]: With dead ends: 16854 [2023-04-03 07:34:06,311 INFO L226 Difference]: Without dead ends: 10435 [2023-04-03 07:34:06,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:34:06,330 INFO L413 NwaCegarLoop]: 5502 mSDtfsCounter, 2792 mSDsluCounter, 13887 mSDsCounter, 0 mSdLazyCounter, 2150 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2792 SdHoareTripleChecker+Valid, 19389 SdHoareTripleChecker+Invalid, 2151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-04-03 07:34:06,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2792 Valid, 19389 Invalid, 2151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2150 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-04-03 07:34:06,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10435 states. [2023-04-03 07:34:06,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10435 to 10423. [2023-04-03 07:34:06,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10423 states, 6231 states have (on average 1.282458674370085) internal successors, (7991), 6267 states have internal predecessors, (7991), 3238 states have call successors, (3238), 954 states have call predecessors, (3238), 952 states have return successors, (3247), 3212 states have call predecessors, (3247), 3237 states have call successors, (3247) [2023-04-03 07:34:06,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10423 states to 10423 states and 14476 transitions. [2023-04-03 07:34:06,997 INFO L78 Accepts]: Start accepts. Automaton has 10423 states and 14476 transitions. Word has length 345 [2023-04-03 07:34:06,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:34:06,997 INFO L495 AbstractCegarLoop]: Abstraction has 10423 states and 14476 transitions. [2023-04-03 07:34:06,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) [2023-04-03 07:34:06,998 INFO L276 IsEmpty]: Start isEmpty. Operand 10423 states and 14476 transitions. [2023-04-03 07:34:07,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2023-04-03 07:34:07,009 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:34:07,009 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:34:07,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-04-03 07:34:07,009 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:34:07,009 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:34:07,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1645301564, now seen corresponding path program 1 times [2023-04-03 07:34:07,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:34:07,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149535947] [2023-04-03 07:34:07,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:34:07,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:34:07,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:34:07,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2023-04-03 07:34:07,505 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:34:07,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149535947] [2023-04-03 07:34:07,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149535947] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:34:07,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:34:07,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:34:07,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564333380] [2023-04-03 07:34:07,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:34:07,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:34:07,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:34:07,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:34:07,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:34:07,507 INFO L87 Difference]: Start difference. First operand 10423 states and 14476 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) [2023-04-03 07:34:10,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:34:10,550 INFO L93 Difference]: Finished difference Result 20902 states and 29018 transitions. [2023-04-03 07:34:10,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 07:34:10,551 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) Word has length 346 [2023-04-03 07:34:10,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:34:10,586 INFO L225 Difference]: With dead ends: 20902 [2023-04-03 07:34:10,587 INFO L226 Difference]: Without dead ends: 12460 [2023-04-03 07:34:10,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:34:10,607 INFO L413 NwaCegarLoop]: 5506 mSDtfsCounter, 2799 mSDsluCounter, 13890 mSDsCounter, 0 mSdLazyCounter, 2156 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2799 SdHoareTripleChecker+Valid, 19396 SdHoareTripleChecker+Invalid, 2159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-04-03 07:34:10,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2799 Valid, 19396 Invalid, 2159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2156 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-04-03 07:34:10,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12460 states. [2023-04-03 07:34:11,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12460 to 12448. [2023-04-03 07:34:11,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12448 states, 7439 states have (on average 1.2818927275171395) internal successors, (9536), 7483 states have internal predecessors, (9536), 3870 states have call successors, (3870), 1138 states have call predecessors, (3870), 1137 states have return successors, (3884), 3839 states have call predecessors, (3884), 3869 states have call successors, (3884) [2023-04-03 07:34:11,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12448 states to 12448 states and 17290 transitions. [2023-04-03 07:34:11,572 INFO L78 Accepts]: Start accepts. Automaton has 12448 states and 17290 transitions. Word has length 346 [2023-04-03 07:34:11,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:34:11,573 INFO L495 AbstractCegarLoop]: Abstraction has 12448 states and 17290 transitions. [2023-04-03 07:34:11,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) [2023-04-03 07:34:11,573 INFO L276 IsEmpty]: Start isEmpty. Operand 12448 states and 17290 transitions. [2023-04-03 07:34:11,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2023-04-03 07:34:11,584 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:34:11,584 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:34:11,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-04-03 07:34:11,584 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:34:11,585 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:34:11,585 INFO L85 PathProgramCache]: Analyzing trace with hash 615320092, now seen corresponding path program 1 times [2023-04-03 07:34:11,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:34:11,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783139119] [2023-04-03 07:34:11,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:34:11,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:34:11,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:34:12,071 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2023-04-03 07:34:12,071 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:34:12,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783139119] [2023-04-03 07:34:12,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783139119] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:34:12,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:34:12,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:34:12,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039552855] [2023-04-03 07:34:12,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:34:12,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:34:12,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:34:12,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:34:12,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:34:12,073 INFO L87 Difference]: Start difference. First operand 12448 states and 17290 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) [2023-04-03 07:34:15,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:34:15,508 INFO L93 Difference]: Finished difference Result 24955 states and 34653 transitions. [2023-04-03 07:34:15,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 07:34:15,509 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) Word has length 347 [2023-04-03 07:34:15,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:34:15,563 INFO L225 Difference]: With dead ends: 24955 [2023-04-03 07:34:15,563 INFO L226 Difference]: Without dead ends: 14488 [2023-04-03 07:34:15,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:34:15,591 INFO L413 NwaCegarLoop]: 5505 mSDtfsCounter, 2810 mSDsluCounter, 13878 mSDsCounter, 0 mSdLazyCounter, 2164 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2810 SdHoareTripleChecker+Valid, 19383 SdHoareTripleChecker+Invalid, 2170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-04-03 07:34:15,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2810 Valid, 19383 Invalid, 2170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2164 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-04-03 07:34:15,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14488 states. [2023-04-03 07:34:16,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14488 to 14476. [2023-04-03 07:34:16,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14476 states, 8650 states have (on average 1.2813872832369941) internal successors, (11084), 8702 states have internal predecessors, (11084), 4502 states have call successors, (4502), 1322 states have call predecessors, (4502), 1322 states have return successors, (4521), 4466 states have call predecessors, (4521), 4501 states have call successors, (4521) [2023-04-03 07:34:16,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14476 states to 14476 states and 20107 transitions. [2023-04-03 07:34:16,673 INFO L78 Accepts]: Start accepts. Automaton has 14476 states and 20107 transitions. Word has length 347 [2023-04-03 07:34:16,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:34:16,674 INFO L495 AbstractCegarLoop]: Abstraction has 14476 states and 20107 transitions. [2023-04-03 07:34:16,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) [2023-04-03 07:34:16,674 INFO L276 IsEmpty]: Start isEmpty. Operand 14476 states and 20107 transitions. [2023-04-03 07:34:16,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2023-04-03 07:34:16,688 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:34:16,688 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:34:16,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-04-03 07:34:16,688 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:34:16,689 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:34:16,689 INFO L85 PathProgramCache]: Analyzing trace with hash 2129482554, now seen corresponding path program 1 times [2023-04-03 07:34:16,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:34:16,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226315101] [2023-04-03 07:34:16,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:34:16,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:34:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:34:17,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2023-04-03 07:34:17,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:34:17,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226315101] [2023-04-03 07:34:17,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226315101] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:34:17,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:34:17,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:34:17,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116664838] [2023-04-03 07:34:17,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:34:17,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:34:17,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:34:17,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:34:17,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:34:17,310 INFO L87 Difference]: Start difference. First operand 14476 states and 20107 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) [2023-04-03 07:34:20,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:34:20,749 INFO L93 Difference]: Finished difference Result 29012 states and 40290 transitions. [2023-04-03 07:34:20,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 07:34:20,750 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) Word has length 348 [2023-04-03 07:34:20,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:34:20,805 INFO L225 Difference]: With dead ends: 29012 [2023-04-03 07:34:20,805 INFO L226 Difference]: Without dead ends: 16517 [2023-04-03 07:34:20,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:34:20,847 INFO L413 NwaCegarLoop]: 5505 mSDtfsCounter, 2798 mSDsluCounter, 13889 mSDsCounter, 0 mSdLazyCounter, 2168 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2798 SdHoareTripleChecker+Valid, 19394 SdHoareTripleChecker+Invalid, 2175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-04-03 07:34:20,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2798 Valid, 19394 Invalid, 2175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2168 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-04-03 07:34:20,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16517 states. [2023-04-03 07:34:21,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16517 to 16505. [2023-04-03 07:34:21,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16505 states, 9862 states have (on average 1.2809774893530723) internal successors, (12633), 9922 states have internal predecessors, (12633), 5134 states have call successors, (5134), 1506 states have call predecessors, (5134), 1507 states have return successors, (5158), 5093 states have call predecessors, (5158), 5133 states have call successors, (5158) [2023-04-03 07:34:21,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16505 states to 16505 states and 22925 transitions. [2023-04-03 07:34:21,955 INFO L78 Accepts]: Start accepts. Automaton has 16505 states and 22925 transitions. Word has length 348 [2023-04-03 07:34:21,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:34:21,956 INFO L495 AbstractCegarLoop]: Abstraction has 16505 states and 22925 transitions. [2023-04-03 07:34:21,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) [2023-04-03 07:34:21,957 INFO L276 IsEmpty]: Start isEmpty. Operand 16505 states and 22925 transitions. [2023-04-03 07:34:21,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2023-04-03 07:34:21,970 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:34:21,971 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:34:21,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-04-03 07:34:21,971 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:34:21,971 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:34:21,971 INFO L85 PathProgramCache]: Analyzing trace with hash 2116218629, now seen corresponding path program 1 times [2023-04-03 07:34:21,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:34:21,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61703130] [2023-04-03 07:34:21,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:34:21,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:34:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:34:22,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2023-04-03 07:34:22,425 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:34:22,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61703130] [2023-04-03 07:34:22,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61703130] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:34:22,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:34:22,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:34:22,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355173846] [2023-04-03 07:34:22,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:34:22,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:34:22,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:34:22,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:34:22,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:34:22,427 INFO L87 Difference]: Start difference. First operand 16505 states and 22925 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) [2023-04-03 07:34:26,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:34:26,077 INFO L93 Difference]: Finished difference Result 33071 states and 45929 transitions. [2023-04-03 07:34:26,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 07:34:26,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) Word has length 349 [2023-04-03 07:34:26,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:34:26,132 INFO L225 Difference]: With dead ends: 33071 [2023-04-03 07:34:26,132 INFO L226 Difference]: Without dead ends: 18547 [2023-04-03 07:34:26,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:34:26,167 INFO L413 NwaCegarLoop]: 5505 mSDtfsCounter, 2799 mSDsluCounter, 13889 mSDsCounter, 0 mSdLazyCounter, 2170 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2799 SdHoareTripleChecker+Valid, 19394 SdHoareTripleChecker+Invalid, 2178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-04-03 07:34:26,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2799 Valid, 19394 Invalid, 2178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2170 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-04-03 07:34:26,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18547 states. [2023-04-03 07:34:27,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18547 to 18535. [2023-04-03 07:34:27,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18535 states, 11075 states have (on average 1.2806320541760723) internal successors, (14183), 11143 states have internal predecessors, (14183), 5766 states have call successors, (5766), 1690 states have call predecessors, (5766), 1692 states have return successors, (5795), 5720 states have call predecessors, (5795), 5765 states have call successors, (5795) [2023-04-03 07:34:27,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18535 states to 18535 states and 25744 transitions. [2023-04-03 07:34:27,523 INFO L78 Accepts]: Start accepts. Automaton has 18535 states and 25744 transitions. Word has length 349 [2023-04-03 07:34:27,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:34:27,523 INFO L495 AbstractCegarLoop]: Abstraction has 18535 states and 25744 transitions. [2023-04-03 07:34:27,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) [2023-04-03 07:34:27,524 INFO L276 IsEmpty]: Start isEmpty. Operand 18535 states and 25744 transitions. [2023-04-03 07:34:27,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2023-04-03 07:34:27,547 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:34:27,547 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:34:27,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-04-03 07:34:27,548 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:34:27,548 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:34:27,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1618804757, now seen corresponding path program 1 times [2023-04-03 07:34:27,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:34:27,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285433331] [2023-04-03 07:34:27,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:34:27,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:34:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:34:28,012 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2023-04-03 07:34:28,012 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:34:28,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285433331] [2023-04-03 07:34:28,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285433331] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:34:28,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:34:28,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:34:28,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839343241] [2023-04-03 07:34:28,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:34:28,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:34:28,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:34:28,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:34:28,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:34:28,014 INFO L87 Difference]: Start difference. First operand 18535 states and 25744 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) [2023-04-03 07:34:31,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:34:31,706 INFO L93 Difference]: Finished difference Result 37132 states and 51570 transitions. [2023-04-03 07:34:31,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 07:34:31,706 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) Word has length 350 [2023-04-03 07:34:31,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:34:31,776 INFO L225 Difference]: With dead ends: 37132 [2023-04-03 07:34:31,776 INFO L226 Difference]: Without dead ends: 20578 [2023-04-03 07:34:31,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:34:31,814 INFO L413 NwaCegarLoop]: 5505 mSDtfsCounter, 2799 mSDsluCounter, 13889 mSDsCounter, 0 mSdLazyCounter, 2173 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2799 SdHoareTripleChecker+Valid, 19394 SdHoareTripleChecker+Invalid, 2182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-04-03 07:34:31,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2799 Valid, 19394 Invalid, 2182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 2173 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-04-03 07:34:31,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20578 states. [2023-04-03 07:34:33,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20578 to 20566. [2023-04-03 07:34:33,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20566 states, 12289 states have (on average 1.2803320042314266) internal successors, (15734), 12365 states have internal predecessors, (15734), 6398 states have call successors, (6398), 1874 states have call predecessors, (6398), 1877 states have return successors, (6432), 6347 states have call predecessors, (6432), 6397 states have call successors, (6432) [2023-04-03 07:34:33,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20566 states to 20566 states and 28564 transitions. [2023-04-03 07:34:33,501 INFO L78 Accepts]: Start accepts. Automaton has 20566 states and 28564 transitions. Word has length 350 [2023-04-03 07:34:33,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:34:33,502 INFO L495 AbstractCegarLoop]: Abstraction has 20566 states and 28564 transitions. [2023-04-03 07:34:33,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) [2023-04-03 07:34:33,502 INFO L276 IsEmpty]: Start isEmpty. Operand 20566 states and 28564 transitions. [2023-04-03 07:34:33,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2023-04-03 07:34:33,525 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:34:33,525 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:34:33,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-04-03 07:34:33,526 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:34:33,527 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:34:33,527 INFO L85 PathProgramCache]: Analyzing trace with hash -617409510, now seen corresponding path program 1 times [2023-04-03 07:34:33,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:34:33,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079226733] [2023-04-03 07:34:33,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:34:33,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:34:33,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:34:34,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2023-04-03 07:34:34,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:34:34,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079226733] [2023-04-03 07:34:34,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079226733] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:34:34,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:34:34,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:34:34,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108265366] [2023-04-03 07:34:34,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:34:34,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:34:34,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:34:34,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:34:34,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:34:34,028 INFO L87 Difference]: Start difference. First operand 20566 states and 28564 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) [2023-04-03 07:34:37,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:34:37,623 INFO L93 Difference]: Finished difference Result 41195 states and 57213 transitions. [2023-04-03 07:34:37,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 07:34:37,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) Word has length 351 [2023-04-03 07:34:37,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:34:37,688 INFO L225 Difference]: With dead ends: 41195 [2023-04-03 07:34:37,688 INFO L226 Difference]: Without dead ends: 22610 [2023-04-03 07:34:37,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:34:37,726 INFO L413 NwaCegarLoop]: 5505 mSDtfsCounter, 2799 mSDsluCounter, 13889 mSDsCounter, 0 mSdLazyCounter, 2176 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2799 SdHoareTripleChecker+Valid, 19394 SdHoareTripleChecker+Invalid, 2186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-04-03 07:34:37,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2799 Valid, 19394 Invalid, 2186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 2176 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-04-03 07:34:37,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22610 states. [2023-04-03 07:34:39,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22610 to 22598. [2023-04-03 07:34:39,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22598 states, 13504 states have (on average 1.2800651658767772) internal successors, (17286), 13588 states have internal predecessors, (17286), 7030 states have call successors, (7030), 2058 states have call predecessors, (7030), 2062 states have return successors, (7069), 6974 states have call predecessors, (7069), 7029 states have call successors, (7069) [2023-04-03 07:34:39,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22598 states to 22598 states and 31385 transitions. [2023-04-03 07:34:39,267 INFO L78 Accepts]: Start accepts. Automaton has 22598 states and 31385 transitions. Word has length 351 [2023-04-03 07:34:39,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:34:39,267 INFO L495 AbstractCegarLoop]: Abstraction has 22598 states and 31385 transitions. [2023-04-03 07:34:39,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) [2023-04-03 07:34:39,268 INFO L276 IsEmpty]: Start isEmpty. Operand 22598 states and 31385 transitions. [2023-04-03 07:34:39,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2023-04-03 07:34:39,418 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:34:39,418 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:34:39,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-04-03 07:34:39,418 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:34:39,419 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:34:39,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1805255069, now seen corresponding path program 1 times [2023-04-03 07:34:39,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:34:39,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655631498] [2023-04-03 07:34:39,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:34:39,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:34:39,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:34:39,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2023-04-03 07:34:39,841 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:34:39,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655631498] [2023-04-03 07:34:39,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655631498] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:34:39,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:34:39,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:34:39,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296027803] [2023-04-03 07:34:39,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:34:39,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:34:39,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:34:39,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:34:39,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:34:39,843 INFO L87 Difference]: Start difference. First operand 22598 states and 31385 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) [2023-04-03 07:34:43,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:34:43,625 INFO L93 Difference]: Finished difference Result 45260 states and 62858 transitions. [2023-04-03 07:34:43,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 07:34:43,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) Word has length 352 [2023-04-03 07:34:43,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:34:43,705 INFO L225 Difference]: With dead ends: 45260 [2023-04-03 07:34:43,705 INFO L226 Difference]: Without dead ends: 24643 [2023-04-03 07:34:43,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:34:43,753 INFO L413 NwaCegarLoop]: 5505 mSDtfsCounter, 2802 mSDsluCounter, 13885 mSDsCounter, 0 mSdLazyCounter, 2180 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2802 SdHoareTripleChecker+Valid, 19390 SdHoareTripleChecker+Invalid, 2191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-04-03 07:34:43,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2802 Valid, 19390 Invalid, 2191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2180 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-04-03 07:34:43,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24643 states. [2023-04-03 07:34:45,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24643 to 24631. [2023-04-03 07:34:45,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24631 states, 14720 states have (on average 1.2798233695652175) internal successors, (18839), 14812 states have internal predecessors, (18839), 7662 states have call successors, (7662), 2242 states have call predecessors, (7662), 2247 states have return successors, (7706), 7601 states have call predecessors, (7706), 7661 states have call successors, (7706) [2023-04-03 07:34:45,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24631 states to 24631 states and 34207 transitions. [2023-04-03 07:34:45,755 INFO L78 Accepts]: Start accepts. Automaton has 24631 states and 34207 transitions. Word has length 352 [2023-04-03 07:34:45,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:34:45,756 INFO L495 AbstractCegarLoop]: Abstraction has 24631 states and 34207 transitions. [2023-04-03 07:34:45,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) [2023-04-03 07:34:45,756 INFO L276 IsEmpty]: Start isEmpty. Operand 24631 states and 34207 transitions. [2023-04-03 07:34:45,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2023-04-03 07:34:45,776 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:34:45,777 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:34:45,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-04-03 07:34:45,777 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:34:45,777 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:34:45,777 INFO L85 PathProgramCache]: Analyzing trace with hash 363377418, now seen corresponding path program 1 times [2023-04-03 07:34:45,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:34:45,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505929834] [2023-04-03 07:34:45,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:34:45,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:34:45,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:34:46,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2023-04-03 07:34:46,192 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:34:46,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505929834] [2023-04-03 07:34:46,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505929834] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:34:46,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:34:46,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:34:46,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427850364] [2023-04-03 07:34:46,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:34:46,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:34:46,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:34:46,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:34:46,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:34:46,194 INFO L87 Difference]: Start difference. First operand 24631 states and 34207 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) [2023-04-03 07:34:50,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:34:50,451 INFO L93 Difference]: Finished difference Result 49327 states and 68505 transitions. [2023-04-03 07:34:50,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 07:34:50,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) Word has length 353 [2023-04-03 07:34:50,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:34:50,541 INFO L225 Difference]: With dead ends: 49327 [2023-04-03 07:34:50,542 INFO L226 Difference]: Without dead ends: 26677 [2023-04-03 07:34:50,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:34:50,589 INFO L413 NwaCegarLoop]: 5466 mSDtfsCounter, 2817 mSDsluCounter, 13793 mSDsCounter, 0 mSdLazyCounter, 2179 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2817 SdHoareTripleChecker+Valid, 19259 SdHoareTripleChecker+Invalid, 2191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-04-03 07:34:50,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2817 Valid, 19259 Invalid, 2191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2179 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-04-03 07:34:50,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26677 states. [2023-04-03 07:34:52,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26677 to 26665. [2023-04-03 07:34:52,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26665 states, 15937 states have (on average 1.2796009286565853) internal successors, (20393), 16037 states have internal predecessors, (20393), 8294 states have call successors, (8294), 2426 states have call predecessors, (8294), 2432 states have return successors, (8343), 8228 states have call predecessors, (8343), 8293 states have call successors, (8343) [2023-04-03 07:34:52,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26665 states to 26665 states and 37030 transitions. [2023-04-03 07:34:52,580 INFO L78 Accepts]: Start accepts. Automaton has 26665 states and 37030 transitions. Word has length 353 [2023-04-03 07:34:52,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:34:52,581 INFO L495 AbstractCegarLoop]: Abstraction has 26665 states and 37030 transitions. [2023-04-03 07:34:52,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) [2023-04-03 07:34:52,581 INFO L276 IsEmpty]: Start isEmpty. Operand 26665 states and 37030 transitions. [2023-04-03 07:34:52,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2023-04-03 07:34:52,601 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:34:52,601 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:34:52,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-04-03 07:34:52,601 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:34:52,602 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:34:52,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1395792467, now seen corresponding path program 1 times [2023-04-03 07:34:52,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:34:52,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771469290] [2023-04-03 07:34:52,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:34:52,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:34:52,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:34:53,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2023-04-03 07:34:53,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:34:53,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771469290] [2023-04-03 07:34:53,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771469290] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:34:53,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:34:53,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:34:53,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799356635] [2023-04-03 07:34:53,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:34:53,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:34:53,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:34:53,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:34:53,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:34:53,125 INFO L87 Difference]: Start difference. First operand 26665 states and 37030 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) [2023-04-03 07:34:57,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:34:57,313 INFO L93 Difference]: Finished difference Result 53396 states and 74154 transitions. [2023-04-03 07:34:57,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 07:34:57,314 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) Word has length 354 [2023-04-03 07:34:57,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:34:57,409 INFO L225 Difference]: With dead ends: 53396 [2023-04-03 07:34:57,410 INFO L226 Difference]: Without dead ends: 28712 [2023-04-03 07:34:57,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:34:57,468 INFO L413 NwaCegarLoop]: 5502 mSDtfsCounter, 2816 mSDsluCounter, 13868 mSDsCounter, 0 mSdLazyCounter, 2177 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2816 SdHoareTripleChecker+Valid, 19370 SdHoareTripleChecker+Invalid, 2190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-04-03 07:34:57,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2816 Valid, 19370 Invalid, 2190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2177 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-04-03 07:34:57,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28712 states. [2023-04-03 07:34:59,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28712 to 28700. [2023-04-03 07:34:59,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28700 states, 17155 states have (on average 1.2793937627513845) internal successors, (21948), 17263 states have internal predecessors, (21948), 8926 states have call successors, (8926), 2610 states have call predecessors, (8926), 2617 states have return successors, (8980), 8855 states have call predecessors, (8980), 8925 states have call successors, (8980) [2023-04-03 07:34:59,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28700 states to 28700 states and 39854 transitions. [2023-04-03 07:34:59,591 INFO L78 Accepts]: Start accepts. Automaton has 28700 states and 39854 transitions. Word has length 354 [2023-04-03 07:34:59,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:34:59,591 INFO L495 AbstractCegarLoop]: Abstraction has 28700 states and 39854 transitions. [2023-04-03 07:34:59,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) [2023-04-03 07:34:59,591 INFO L276 IsEmpty]: Start isEmpty. Operand 28700 states and 39854 transitions. [2023-04-03 07:34:59,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-04-03 07:34:59,612 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:34:59,612 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:34:59,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-04-03 07:34:59,613 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:34:59,613 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:34:59,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1241503191, now seen corresponding path program 1 times [2023-04-03 07:34:59,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:34:59,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769588214] [2023-04-03 07:34:59,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:34:59,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:34:59,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:34:59,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2023-04-03 07:34:59,975 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:34:59,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769588214] [2023-04-03 07:34:59,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769588214] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:34:59,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:34:59,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:34:59,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623131929] [2023-04-03 07:34:59,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:34:59,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:34:59,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:34:59,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:34:59,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:34:59,977 INFO L87 Difference]: Start difference. First operand 28700 states and 39854 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) [2023-04-03 07:35:04,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:35:04,578 INFO L93 Difference]: Finished difference Result 57467 states and 79805 transitions. [2023-04-03 07:35:04,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 07:35:04,578 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) Word has length 355 [2023-04-03 07:35:04,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:35:04,683 INFO L225 Difference]: With dead ends: 57467 [2023-04-03 07:35:04,683 INFO L226 Difference]: Without dead ends: 30748 [2023-04-03 07:35:04,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:35:04,739 INFO L413 NwaCegarLoop]: 5505 mSDtfsCounter, 2798 mSDsluCounter, 13889 mSDsCounter, 0 mSdLazyCounter, 2189 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2798 SdHoareTripleChecker+Valid, 19394 SdHoareTripleChecker+Invalid, 2203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-04-03 07:35:04,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2798 Valid, 19394 Invalid, 2203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 2189 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-04-03 07:35:04,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30748 states. [2023-04-03 07:35:06,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30748 to 30736. [2023-04-03 07:35:06,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30736 states, 18374 states have (on average 1.2791988679656037) internal successors, (23504), 18490 states have internal predecessors, (23504), 9558 states have call successors, (9558), 2794 states have call predecessors, (9558), 2802 states have return successors, (9617), 9482 states have call predecessors, (9617), 9557 states have call successors, (9617) [2023-04-03 07:35:06,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30736 states to 30736 states and 42679 transitions. [2023-04-03 07:35:07,002 INFO L78 Accepts]: Start accepts. Automaton has 30736 states and 42679 transitions. Word has length 355 [2023-04-03 07:35:07,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:35:07,002 INFO L495 AbstractCegarLoop]: Abstraction has 30736 states and 42679 transitions. [2023-04-03 07:35:07,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) [2023-04-03 07:35:07,003 INFO L276 IsEmpty]: Start isEmpty. Operand 30736 states and 42679 transitions. [2023-04-03 07:35:07,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2023-04-03 07:35:07,027 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:35:07,027 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:35:07,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-04-03 07:35:07,027 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:35:07,028 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:35:07,028 INFO L85 PathProgramCache]: Analyzing trace with hash 358799768, now seen corresponding path program 1 times [2023-04-03 07:35:07,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:35:07,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305794529] [2023-04-03 07:35:07,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:35:07,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:35:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:35:08,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1415 trivial. 0 not checked. [2023-04-03 07:35:08,107 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:35:08,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305794529] [2023-04-03 07:35:08,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305794529] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 07:35:08,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799810790] [2023-04-03 07:35:08,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:35:08,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 07:35:08,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 07:35:08,110 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 07:35:08,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-03 07:35:09,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:35:09,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 5099 conjuncts, 39 conjunts are in the unsatisfiable core [2023-04-03 07:35:09,367 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 07:35:09,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 2 proven. 50 refuted. 0 times theorem prover too weak. 1368 trivial. 0 not checked. [2023-04-03 07:35:09,929 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 07:35:10,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1414 trivial. 0 not checked. [2023-04-03 07:35:10,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799810790] provided 1 perfect and 1 imperfect interpolant sequences [2023-04-03 07:35:10,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-04-03 07:35:10,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6, 7] total 11 [2023-04-03 07:35:10,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215694297] [2023-04-03 07:35:10,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:35:10,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 07:35:10,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:35:10,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 07:35:10,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-04-03 07:35:10,519 INFO L87 Difference]: Start difference. First operand 30736 states and 42679 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 6 states have internal predecessors, (118), 3 states have call successors, (51), 4 states have call predecessors, (51), 3 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2023-04-03 07:35:13,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:35:13,830 INFO L93 Difference]: Finished difference Result 30736 states and 42679 transitions. [2023-04-03 07:35:13,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 07:35:13,831 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 6 states have internal predecessors, (118), 3 states have call successors, (51), 4 states have call predecessors, (51), 3 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 356 [2023-04-03 07:35:13,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:35:13,918 INFO L225 Difference]: With dead ends: 30736 [2023-04-03 07:35:13,919 INFO L226 Difference]: Without dead ends: 30734 [2023-04-03 07:35:13,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 726 GetRequests, 715 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-04-03 07:35:13,934 INFO L413 NwaCegarLoop]: 2939 mSDtfsCounter, 3164 mSDsluCounter, 5994 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3169 SdHoareTripleChecker+Valid, 8933 SdHoareTripleChecker+Invalid, 1164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-03 07:35:13,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3169 Valid, 8933 Invalid, 1164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1146 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-03 07:35:13,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30734 states. [2023-04-03 07:35:15,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30734 to 30734. [2023-04-03 07:35:15,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30734 states, 18373 states have (on average 1.2783976487236706) internal successors, (23488), 18488 states have internal predecessors, (23488), 9558 states have call successors, (9558), 2794 states have call predecessors, (9558), 2802 states have return successors, (9617), 9482 states have call predecessors, (9617), 9557 states have call successors, (9617) [2023-04-03 07:35:16,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30734 states to 30734 states and 42663 transitions. [2023-04-03 07:35:16,184 INFO L78 Accepts]: Start accepts. Automaton has 30734 states and 42663 transitions. Word has length 356 [2023-04-03 07:35:16,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:35:16,185 INFO L495 AbstractCegarLoop]: Abstraction has 30734 states and 42663 transitions. [2023-04-03 07:35:16,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 6 states have internal predecessors, (118), 3 states have call successors, (51), 4 states have call predecessors, (51), 3 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2023-04-03 07:35:16,185 INFO L276 IsEmpty]: Start isEmpty. Operand 30734 states and 42663 transitions. [2023-04-03 07:35:16,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2023-04-03 07:35:16,218 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 07:35:16,218 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 07:35:16,233 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-04-03 07:35:16,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-04-03 07:35:16,419 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-04-03 07:35:16,420 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 07:35:16,420 INFO L85 PathProgramCache]: Analyzing trace with hash 830664059, now seen corresponding path program 1 times [2023-04-03 07:35:16,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 07:35:16,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36725654] [2023-04-03 07:35:16,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 07:35:16,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 07:35:16,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 07:35:17,240 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1432 trivial. 0 not checked. [2023-04-03 07:35:17,241 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 07:35:17,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36725654] [2023-04-03 07:35:17,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36725654] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 07:35:17,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 07:35:17,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 07:35:17,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137716540] [2023-04-03 07:35:17,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 07:35:17,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 07:35:17,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 07:35:17,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 07:35:17,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 07:35:17,243 INFO L87 Difference]: Start difference. First operand 30734 states and 42663 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (55), 3 states have call predecessors, (55), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2023-04-03 07:35:20,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 07:35:20,789 INFO L93 Difference]: Finished difference Result 30734 states and 42663 transitions. [2023-04-03 07:35:20,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 07:35:20,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (55), 3 states have call predecessors, (55), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 376 [2023-04-03 07:35:20,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 07:35:20,792 INFO L225 Difference]: With dead ends: 30734 [2023-04-03 07:35:20,792 INFO L226 Difference]: Without dead ends: 0 [2023-04-03 07:35:20,866 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 [2023-04-03 07:35:20,867 INFO L413 NwaCegarLoop]: 2951 mSDtfsCounter, 90 mSDsluCounter, 8776 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 11727 SdHoareTripleChecker+Invalid, 1287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-04-03 07:35:20,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 11727 Invalid, 1287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-04-03 07:35:20,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-03 07:35:20,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-03 07:35:20,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-04-03 07:35:20,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-03 07:35:20,874 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 376 [2023-04-03 07:35:20,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 07:35:20,874 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-03 07:35:20,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (55), 3 states have call predecessors, (55), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2023-04-03 07:35:20,874 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-03 07:35:20,874 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-03 07:35:20,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-04-03 07:35:20,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2023-04-03 07:35:20,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2023-04-03 07:35:20,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-04-03 07:35:20,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-04-03 07:35:20,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.