./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 265e49c3377c52c97dc3fc0a083b7daee63958176975b73f1e1d54651892cb04 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 18:39:07,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 18:39:07,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 18:39:07,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 18:39:07,779 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 18:39:07,780 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 18:39:07,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 18:39:07,791 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 18:39:07,793 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 18:39:07,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 18:39:07,798 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 18:39:07,799 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 18:39:07,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 18:39:07,801 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 18:39:07,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 18:39:07,807 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 18:39:07,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 18:39:07,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 18:39:07,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 18:39:07,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 18:39:07,818 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 18:39:07,819 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 18:39:07,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 18:39:07,820 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 18:39:07,822 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 18:39:07,822 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 18:39:07,823 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 18:39:07,823 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 18:39:07,824 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 18:39:07,825 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 18:39:07,825 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 18:39:07,825 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 18:39:07,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 18:39:07,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 18:39:07,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 18:39:07,828 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 18:39:07,829 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 18:39:07,829 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 18:39:07,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 18:39:07,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 18:39:07,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 18:39:07,831 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 18:39:07,852 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 18:39:07,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 18:39:07,853 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 18:39:07,853 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 18:39:07,853 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 18:39:07,854 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 18:39:07,854 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 18:39:07,854 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 18:39:07,854 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 18:39:07,855 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 18:39:07,855 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 18:39:07,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 18:39:07,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 18:39:07,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 18:39:07,856 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 18:39:07,856 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 18:39:07,856 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 18:39:07,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 18:39:07,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 18:39:07,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 18:39:07,857 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 18:39:07,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:39:07,857 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 18:39:07,857 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 18:39:07,858 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 18:39:07,858 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 18:39:07,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 18:39:07,859 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 18:39:07,859 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 18:39:07,859 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 18:39:07,860 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 18:39:07,860 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 265e49c3377c52c97dc3fc0a083b7daee63958176975b73f1e1d54651892cb04 [2021-12-14 18:39:08,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 18:39:08,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 18:39:08,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 18:39:08,068 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 18:39:08,069 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 18:39:08,069 INFO L432 ainManager$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-wireless-adm8211.cil.i [2021-12-14 18:39:08,129 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/747fa63d3/ab38e9c3e52a4c479870558907595034/FLAG489f48395 [2021-12-14 18:39:08,709 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 18:39:08,709 INFO L160 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-wireless-adm8211.cil.i [2021-12-14 18:39:08,747 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/747fa63d3/ab38e9c3e52a4c479870558907595034/FLAG489f48395 [2021-12-14 18:39:09,151 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/747fa63d3/ab38e9c3e52a4c479870558907595034 [2021-12-14 18:39:09,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 18:39:09,154 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 18:39:09,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 18:39:09,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 18:39:09,157 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 18:39:09,157 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:39:09" (1/1) ... [2021-12-14 18:39:09,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@752a587f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:39:09, skipping insertion in model container [2021-12-14 18:39:09,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:39:09" (1/1) ... [2021-12-14 18:39:09,163 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 18:39:09,269 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 18:39:10,996 WARN L230 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-wireless-adm8211.cil.i[372884,372897] [2021-12-14 18:39:10,998 WARN L230 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-wireless-adm8211.cil.i[373053,373066] [2021-12-14 18:39:10,999 WARN L230 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-wireless-adm8211.cil.i[373220,373233] [2021-12-14 18:39:10,999 WARN L230 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-wireless-adm8211.cil.i[373388,373401] [2021-12-14 18:39:11,022 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:39:11,054 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 18:39:11,333 WARN L230 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-wireless-adm8211.cil.i[372884,372897] [2021-12-14 18:39:11,334 WARN L230 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-wireless-adm8211.cil.i[373053,373066] [2021-12-14 18:39:11,334 WARN L230 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-wireless-adm8211.cil.i[373220,373233] [2021-12-14 18:39:11,334 WARN L230 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-wireless-adm8211.cil.i[373388,373401] [2021-12-14 18:39:11,342 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:39:11,451 INFO L208 MainTranslator]: Completed translation [2021-12-14 18:39:11,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:39:11 WrapperNode [2021-12-14 18:39:11,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 18:39:11,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 18:39:11,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 18:39:11,453 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 18:39:11,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:39:11" (1/1) ... [2021-12-14 18:39:11,532 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:39:11" (1/1) ... [2021-12-14 18:39:11,691 INFO L137 Inliner]: procedures = 411, calls = 2777, calls flagged for inlining = 214, calls inlined = 198, statements flattened = 6084 [2021-12-14 18:39:11,692 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 18:39:11,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 18:39:11,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 18:39:11,693 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 18:39:11,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:39:11" (1/1) ... [2021-12-14 18:39:11,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:39:11" (1/1) ... [2021-12-14 18:39:11,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:39:11" (1/1) ... [2021-12-14 18:39:11,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:39:11" (1/1) ... [2021-12-14 18:39:11,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:39:11" (1/1) ... [2021-12-14 18:39:11,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:39:11" (1/1) ... [2021-12-14 18:39:11,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:39:11" (1/1) ... [2021-12-14 18:39:11,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 18:39:11,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 18:39:11,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 18:39:11,983 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 18:39:11,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:39:11" (1/1) ... [2021-12-14 18:39:11,989 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:39:11,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:39:12,008 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) [2021-12-14 18:39:12,015 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 [2021-12-14 18:39:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure adm8211_set_bssid [2021-12-14 18:39:12,051 INFO L138 BoogieDeclarations]: Found implementation of procedure adm8211_set_bssid [2021-12-14 18:39:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure adm8211_start [2021-12-14 18:39:12,052 INFO L138 BoogieDeclarations]: Found implementation of procedure adm8211_start [2021-12-14 18:39:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-14 18:39:12,052 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-14 18:39:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-14 18:39:12,052 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-14 18:39:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 18:39:12,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 18:39:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-14 18:39:12,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-14 18:39:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-14 18:39:12,053 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-14 18:39:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-14 18:39:12,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-14 18:39:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-14 18:39:12,053 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-14 18:39:12,054 INFO L130 BoogieDeclarations]: Found specification of procedure adm8211_rf_write_syn_al2210l [2021-12-14 18:39:12,054 INFO L138 BoogieDeclarations]: Found implementation of procedure adm8211_rf_write_syn_al2210l [2021-12-14 18:39:12,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-14 18:39:12,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-14 18:39:12,054 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-14 18:39:12,054 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-14 18:39:12,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-14 18:39:12,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-14 18:39:12,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_adm8211_priv [2021-12-14 18:39:12,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_adm8211_priv [2021-12-14 18:39:12,055 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-14 18:39:12,055 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-14 18:39:12,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 18:39:12,056 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-14 18:39:12,056 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-14 18:39:12,056 INFO L130 BoogieDeclarations]: Found specification of procedure adm8211_rf_set_channel [2021-12-14 18:39:12,056 INFO L138 BoogieDeclarations]: Found implementation of procedure adm8211_rf_set_channel [2021-12-14 18:39:12,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 18:39:12,056 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-14 18:39:12,056 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-14 18:39:12,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 18:39:12,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-14 18:39:12,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-14 18:39:12,057 INFO L130 BoogieDeclarations]: Found specification of procedure adm8211_write_sram [2021-12-14 18:39:12,057 INFO L138 BoogieDeclarations]: Found implementation of procedure adm8211_write_sram [2021-12-14 18:39:12,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 18:39:12,057 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-14 18:39:12,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-14 18:39:12,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 18:39:12,058 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 18:39:12,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-14 18:39:12,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-14 18:39:12,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-14 18:39:12,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-14 18:39:12,059 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2021-12-14 18:39:12,060 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2021-12-14 18:39:12,060 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-14 18:39:12,060 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-14 18:39:12,060 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-14 18:39:12,060 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-14 18:39:12,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-14 18:39:12,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-14 18:39:12,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 18:39:12,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-14 18:39:12,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-14 18:39:12,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-14 18:39:12,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-14 18:39:12,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 18:39:12,062 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2021-12-14 18:39:12,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2021-12-14 18:39:12,062 INFO L130 BoogieDeclarations]: Found specification of procedure adm8211_rf_write_syn_max2820 [2021-12-14 18:39:12,062 INFO L138 BoogieDeclarations]: Found implementation of procedure adm8211_rf_write_syn_max2820 [2021-12-14 18:39:12,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-14 18:39:12,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-14 18:39:12,062 INFO L130 BoogieDeclarations]: Found specification of procedure adm8211_write_bbp [2021-12-14 18:39:12,063 INFO L138 BoogieDeclarations]: Found implementation of procedure adm8211_write_bbp [2021-12-14 18:39:12,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 18:39:12,063 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 18:39:12,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 18:39:12,063 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-14 18:39:12,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-14 18:39:12,063 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-14 18:39:12,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-14 18:39:12,064 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-14 18:39:12,064 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-14 18:39:12,064 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-14 18:39:12,064 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-14 18:39:12,064 INFO L130 BoogieDeclarations]: Found specification of procedure adm8211_stop [2021-12-14 18:39:12,065 INFO L138 BoogieDeclarations]: Found implementation of procedure adm8211_stop [2021-12-14 18:39:12,065 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-12-14 18:39:12,065 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-12-14 18:39:12,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 18:39:12,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 18:39:12,066 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-14 18:39:12,066 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-14 18:39:12,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 18:39:12,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 18:39:12,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 18:39:12,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 18:39:12,066 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2021-12-14 18:39:12,066 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2021-12-14 18:39:12,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-14 18:39:12,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-14 18:39:12,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ieee80211_free_hw [2021-12-14 18:39:12,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ieee80211_free_hw [2021-12-14 18:39:12,067 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-12-14 18:39:12,067 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-12-14 18:39:12,067 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-14 18:39:12,068 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-14 18:39:12,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 18:39:12,068 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 18:39:12,068 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-14 18:39:12,068 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-14 18:39:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 18:39:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 18:39:12,071 INFO L130 BoogieDeclarations]: Found specification of procedure adm8211_resume [2021-12-14 18:39:12,071 INFO L138 BoogieDeclarations]: Found implementation of procedure adm8211_resume [2021-12-14 18:39:12,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 18:39:12,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-14 18:39:12,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-14 18:39:12,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_adm8211_priv [2021-12-14 18:39:12,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_adm8211_priv [2021-12-14 18:39:12,072 INFO L130 BoogieDeclarations]: Found specification of procedure adm8211_remove [2021-12-14 18:39:12,073 INFO L138 BoogieDeclarations]: Found implementation of procedure adm8211_remove [2021-12-14 18:39:12,076 INFO L130 BoogieDeclarations]: Found specification of procedure adm8211_update_mode [2021-12-14 18:39:12,077 INFO L138 BoogieDeclarations]: Found implementation of procedure adm8211_update_mode [2021-12-14 18:39:12,077 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 18:39:12,077 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 18:39:12,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 18:39:12,077 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2021-12-14 18:39:12,077 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2021-12-14 18:39:12,077 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-12-14 18:39:12,077 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-12-14 18:39:12,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 18:39:12,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 18:39:12,078 INFO L130 BoogieDeclarations]: Found specification of procedure adm8211_rf_write_syn_rfmd2958 [2021-12-14 18:39:12,078 INFO L138 BoogieDeclarations]: Found implementation of procedure adm8211_rf_write_syn_rfmd2958 [2021-12-14 18:39:12,078 INFO L130 BoogieDeclarations]: Found specification of procedure adm8211_rf_write_syn_rfmd2948 [2021-12-14 18:39:12,078 INFO L138 BoogieDeclarations]: Found implementation of procedure adm8211_rf_write_syn_rfmd2948 [2021-12-14 18:39:12,078 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-12-14 18:39:12,078 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-12-14 18:39:12,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-14 18:39:12,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-14 18:39:12,079 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-14 18:39:12,079 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-14 18:39:12,079 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-14 18:39:12,079 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-14 18:39:12,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 18:39:12,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-14 18:39:12,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-14 18:39:12,079 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2021-12-14 18:39:12,080 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2021-12-14 18:39:12,908 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 18:39:12,910 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 18:39:13,688 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 18:39:21,990 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-14 18:39:22,045 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 18:39:22,061 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 18:39:22,061 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-14 18:39:22,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:39:22 BoogieIcfgContainer [2021-12-14 18:39:22,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 18:39:22,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 18:39:22,067 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 18:39:22,069 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 18:39:22,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:39:09" (1/3) ... [2021-12-14 18:39:22,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45037f46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:39:22, skipping insertion in model container [2021-12-14 18:39:22,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:39:11" (2/3) ... [2021-12-14 18:39:22,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45037f46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:39:22, skipping insertion in model container [2021-12-14 18:39:22,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:39:22" (3/3) ... [2021-12-14 18:39:22,070 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i [2021-12-14 18:39:22,074 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 18:39:22,074 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-14 18:39:22,114 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 18:39:22,117 INFO L339 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=PETRI_NET, 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 18:39:22,118 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-14 18:39:22,150 INFO L276 IsEmpty]: Start isEmpty. Operand has 2089 states, 1414 states have (on average 1.2595473833097595) internal successors, (1781), 1434 states have internal predecessors, (1781), 606 states have call successors, (606), 67 states have call predecessors, (606), 66 states have return successors, (601), 597 states have call predecessors, (601), 601 states have call successors, (601) [2021-12-14 18:39:22,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-14 18:39:22,158 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:39:22,158 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:39:22,159 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:39:22,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:39:22,162 INFO L85 PathProgramCache]: Analyzing trace with hash 608625239, now seen corresponding path program 1 times [2021-12-14 18:39:22,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:39:22,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308729156] [2021-12-14 18:39:22,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:39:22,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:39:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:22,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:39:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:22,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:22,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:22,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:39:22,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:22,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:22,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:39:22,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:22,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:22,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:22,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:39:22,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:22,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:22,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:22,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:39:22,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:22,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:22,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:22,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:39:22,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:22,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:22,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:22,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:39:22,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:22,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:22,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:22,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:39:22,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:22,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:22,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:22,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:39:22,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:22,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:22,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:39:22,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:22,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:22,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:22,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-14 18:39:22,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:22,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:39:22,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:22,779 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-12-14 18:39:22,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:39:22,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308729156] [2021-12-14 18:39:22,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308729156] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:39:22,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:39:22,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:39:22,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413093218] [2021-12-14 18:39:22,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:39:22,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:39:22,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:39:22,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:39:22,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:39:22,815 INFO L87 Difference]: Start difference. First operand has 2089 states, 1414 states have (on average 1.2595473833097595) internal successors, (1781), 1434 states have internal predecessors, (1781), 606 states have call successors, (606), 67 states have call predecessors, (606), 66 states have return successors, (601), 597 states have call predecessors, (601), 601 states have call successors, (601) Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-14 18:39:24,628 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:39:26,649 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:39:29,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:39:32,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:39:32,231 INFO L93 Difference]: Finished difference Result 6253 states and 9034 transitions. [2021-12-14 18:39:32,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:39:32,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 134 [2021-12-14 18:39:32,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:39:32,295 INFO L225 Difference]: With dead ends: 6253 [2021-12-14 18:39:32,295 INFO L226 Difference]: Without dead ends: 4179 [2021-12-14 18:39:32,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:39:32,314 INFO L933 BasicCegarLoop]: 3260 mSDtfsCounter, 3269 mSDsluCounter, 3637 mSDsCounter, 0 mSdLazyCounter, 1816 mSolverCounterSat, 1634 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3825 SdHoareTripleChecker+Valid, 6897 SdHoareTripleChecker+Invalid, 3451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1634 IncrementalHoareTripleChecker+Valid, 1816 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:39:32,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3825 Valid, 6897 Invalid, 3451 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1634 Valid, 1816 Invalid, 1 Unknown, 0 Unchecked, 9.0s Time] [2021-12-14 18:39:32,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4179 states. [2021-12-14 18:39:32,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4179 to 4065. [2021-12-14 18:39:32,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4065 states, 2766 states have (on average 1.2530730296456978) internal successors, (3466), 2804 states have internal predecessors, (3466), 1167 states have call successors, (1167), 130 states have call predecessors, (1167), 129 states have return successors, (1164), 1156 states have call predecessors, (1164), 1164 states have call successors, (1164) [2021-12-14 18:39:32,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4065 states to 4065 states and 5797 transitions. [2021-12-14 18:39:32,573 INFO L78 Accepts]: Start accepts. Automaton has 4065 states and 5797 transitions. Word has length 134 [2021-12-14 18:39:32,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:39:32,576 INFO L470 AbstractCegarLoop]: Abstraction has 4065 states and 5797 transitions. [2021-12-14 18:39:32,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-14 18:39:32,576 INFO L276 IsEmpty]: Start isEmpty. Operand 4065 states and 5797 transitions. [2021-12-14 18:39:32,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-14 18:39:32,588 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:39:32,588 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:39:32,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 18:39:32,589 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:39:32,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:39:32,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1010884305, now seen corresponding path program 1 times [2021-12-14 18:39:32,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:39:32,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605873894] [2021-12-14 18:39:32,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:39:32,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:39:32,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:32,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:39:32,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:32,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:32,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:39:32,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:32,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:32,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:32,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:39:32,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:32,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:32,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:32,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:39:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:32,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:32,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:32,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:39:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:32,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:32,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:39:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:32,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:32,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:39:32,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:32,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:32,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:39:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:32,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:32,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:39:32,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:32,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:32,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:39:32,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:32,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:32,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-14 18:39:32,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:32,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-14 18:39:32,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:32,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-14 18:39:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:32,939 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-12-14 18:39:32,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:39:32,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605873894] [2021-12-14 18:39:32,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605873894] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:39:32,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:39:32,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:39:32,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645551022] [2021-12-14 18:39:32,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:39:32,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:39:32,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:39:32,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:39:32,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:39:32,942 INFO L87 Difference]: Start difference. First operand 4065 states and 5797 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-14 18:39:35,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:39:38,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:39:38,763 INFO L93 Difference]: Finished difference Result 11619 states and 16577 transitions. [2021-12-14 18:39:38,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:39:38,763 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 148 [2021-12-14 18:39:38,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:39:38,812 INFO L225 Difference]: With dead ends: 11619 [2021-12-14 18:39:38,812 INFO L226 Difference]: Without dead ends: 7579 [2021-12-14 18:39:38,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:39:38,835 INFO L933 BasicCegarLoop]: 3327 mSDtfsCounter, 2728 mSDsluCounter, 3668 mSDsCounter, 0 mSdLazyCounter, 1697 mSolverCounterSat, 1500 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3197 SdHoareTripleChecker+Valid, 6995 SdHoareTripleChecker+Invalid, 3198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1500 IncrementalHoareTripleChecker+Valid, 1697 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-12-14 18:39:38,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3197 Valid, 6995 Invalid, 3198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1500 Valid, 1697 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2021-12-14 18:39:38,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7579 states. [2021-12-14 18:39:39,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7579 to 7406. [2021-12-14 18:39:39,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7406 states, 5028 states have (on average 1.2488066825775657) internal successors, (6279), 5108 states have internal predecessors, (6279), 2118 states have call successors, (2118), 248 states have call predecessors, (2118), 257 states have return successors, (2173), 2097 states have call predecessors, (2173), 2115 states have call successors, (2173) [2021-12-14 18:39:39,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7406 states to 7406 states and 10570 transitions. [2021-12-14 18:39:39,153 INFO L78 Accepts]: Start accepts. Automaton has 7406 states and 10570 transitions. Word has length 148 [2021-12-14 18:39:39,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:39:39,155 INFO L470 AbstractCegarLoop]: Abstraction has 7406 states and 10570 transitions. [2021-12-14 18:39:39,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-14 18:39:39,155 INFO L276 IsEmpty]: Start isEmpty. Operand 7406 states and 10570 transitions. [2021-12-14 18:39:39,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-12-14 18:39:39,161 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:39:39,161 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:39:39,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 18:39:39,161 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:39:39,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:39:39,162 INFO L85 PathProgramCache]: Analyzing trace with hash -2114336523, now seen corresponding path program 1 times [2021-12-14 18:39:39,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:39:39,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786028024] [2021-12-14 18:39:39,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:39:39,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:39:39,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:39,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:39:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:39,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:39,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:39,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:39:39,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:39,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:39,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:39:39,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:39,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:39,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:39,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:39:39,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:39,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:39,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:39,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:39:39,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:39,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:39,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:39,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:39:39,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:39,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:39,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:39,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:39:39,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:39,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:39,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:39,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:39:39,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:39,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:39,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:39,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:39:39,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:39,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:39,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:39,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:39:39,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:39,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:39,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:39,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-14 18:39:39,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:39,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-14 18:39:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:39,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-14 18:39:39,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:39,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 18:39:39,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:39,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-14 18:39:39,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:39,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:39,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:39,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-14 18:39:39,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:39,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-14 18:39:39,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:39,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-14 18:39:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:39,497 INFO L134 CoverageAnalysis]: Checked inductivity of 573 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2021-12-14 18:39:39,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:39:39,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786028024] [2021-12-14 18:39:39,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786028024] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:39:39,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:39:39,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:39:39,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125392914] [2021-12-14 18:39:39,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:39:39,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:39:39,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:39:39,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:39:39,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:39:39,500 INFO L87 Difference]: Start difference. First operand 7406 states and 10570 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-14 18:39:41,681 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:39:45,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:39:45,261 INFO L93 Difference]: Finished difference Result 14903 states and 21230 transitions. [2021-12-14 18:39:45,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:39:45,261 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 186 [2021-12-14 18:39:45,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:39:45,371 INFO L225 Difference]: With dead ends: 14903 [2021-12-14 18:39:45,371 INFO L226 Difference]: Without dead ends: 11142 [2021-12-14 18:39:45,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:39:45,393 INFO L933 BasicCegarLoop]: 5315 mSDtfsCounter, 2607 mSDsluCounter, 4750 mSDsCounter, 0 mSdLazyCounter, 1805 mSolverCounterSat, 1051 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3124 SdHoareTripleChecker+Valid, 10065 SdHoareTripleChecker+Invalid, 2857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1051 IncrementalHoareTripleChecker+Valid, 1805 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-12-14 18:39:45,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3124 Valid, 10065 Invalid, 2857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1051 Valid, 1805 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2021-12-14 18:39:45,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11142 states. [2021-12-14 18:39:45,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11142 to 10915. [2021-12-14 18:39:45,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10915 states, 7424 states have (on average 1.2487877155172413) internal successors, (9271), 7539 states have internal predecessors, (9271), 3105 states have call successors, (3105), 369 states have call predecessors, (3105), 383 states have return successors, (3184), 3076 states have call predecessors, (3184), 3102 states have call successors, (3184) [2021-12-14 18:39:45,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10915 states to 10915 states and 15560 transitions. [2021-12-14 18:39:45,805 INFO L78 Accepts]: Start accepts. Automaton has 10915 states and 15560 transitions. Word has length 186 [2021-12-14 18:39:45,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:39:45,806 INFO L470 AbstractCegarLoop]: Abstraction has 10915 states and 15560 transitions. [2021-12-14 18:39:45,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-14 18:39:45,807 INFO L276 IsEmpty]: Start isEmpty. Operand 10915 states and 15560 transitions. [2021-12-14 18:39:45,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-12-14 18:39:45,810 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:39:45,811 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:39:45,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 18:39:45,811 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:39:45,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:39:45,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1691634697, now seen corresponding path program 1 times [2021-12-14 18:39:45,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:39:45,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009779797] [2021-12-14 18:39:45,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:39:45,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:39:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:45,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:39:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:46,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:46,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:46,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:39:46,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:46,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:46,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:46,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:39:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:46,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:46,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:39:46,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:46,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:46,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:46,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:39:46,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:46,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:46,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:39:46,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:46,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:46,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:39:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:46,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:46,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:46,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:39:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:46,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:46,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:39:46,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:46,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:46,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:46,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:39:46,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:46,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:46,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:46,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-14 18:39:46,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:46,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-14 18:39:46,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:46,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-14 18:39:46,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:46,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 18:39:46,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:46,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-14 18:39:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:46,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:46,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:46,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-14 18:39:46,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:46,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-14 18:39:46,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:46,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-14 18:39:46,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:46,211 INFO L134 CoverageAnalysis]: Checked inductivity of 573 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2021-12-14 18:39:46,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:39:46,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009779797] [2021-12-14 18:39:46,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009779797] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:39:46,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:39:46,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:39:46,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044401791] [2021-12-14 18:39:46,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:39:46,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:39:46,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:39:46,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:39:46,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:39:46,214 INFO L87 Difference]: Start difference. First operand 10915 states and 15560 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-14 18:39:48,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:39:51,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:39:51,436 INFO L93 Difference]: Finished difference Result 11423 states and 16273 transitions. [2021-12-14 18:39:51,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-14 18:39:51,438 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 186 [2021-12-14 18:39:51,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:39:51,529 INFO L225 Difference]: With dead ends: 11423 [2021-12-14 18:39:51,529 INFO L226 Difference]: Without dead ends: 11421 [2021-12-14 18:39:51,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-14 18:39:51,533 INFO L933 BasicCegarLoop]: 2950 mSDtfsCounter, 2648 mSDsluCounter, 6335 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 1042 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3084 SdHoareTripleChecker+Valid, 9285 SdHoareTripleChecker+Invalid, 3424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1042 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-12-14 18:39:51,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3084 Valid, 9285 Invalid, 3424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1042 Valid, 2381 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2021-12-14 18:39:51,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11421 states. [2021-12-14 18:39:51,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11421 to 11217. [2021-12-14 18:39:51,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11217 states, 7605 states have (on average 1.2468113083497698) internal successors, (9482), 7724 states have internal predecessors, (9482), 3211 states have call successors, (3211), 384 states have call predecessors, (3211), 398 states have return successors, (3290), 3182 states have call predecessors, (3290), 3208 states have call successors, (3290) [2021-12-14 18:39:51,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11217 states to 11217 states and 15983 transitions. [2021-12-14 18:39:51,951 INFO L78 Accepts]: Start accepts. Automaton has 11217 states and 15983 transitions. Word has length 186 [2021-12-14 18:39:51,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:39:51,951 INFO L470 AbstractCegarLoop]: Abstraction has 11217 states and 15983 transitions. [2021-12-14 18:39:51,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-14 18:39:51,952 INFO L276 IsEmpty]: Start isEmpty. Operand 11217 states and 15983 transitions. [2021-12-14 18:39:51,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-12-14 18:39:51,956 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:39:51,956 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 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] [2021-12-14 18:39:51,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 18:39:51,957 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:39:51,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:39:51,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1417022869, now seen corresponding path program 1 times [2021-12-14 18:39:51,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:39:51,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260953747] [2021-12-14 18:39:51,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:39:51,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:39:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:39:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:52,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:39:52,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:52,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:39:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:52,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:39:52,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:52,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:39:52,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:52,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:39:52,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:52,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:39:52,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:52,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:39:52,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:52,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:39:52,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:52,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:39:52,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-14 18:39:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-14 18:39:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-14 18:39:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 18:39:52,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-14 18:39:52,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:52,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-14 18:39:52,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-14 18:39:52,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-14 18:39:52,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-14 18:39:52,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:52,292 INFO L134 CoverageAnalysis]: Checked inductivity of 575 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2021-12-14 18:39:52,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:39:52,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260953747] [2021-12-14 18:39:52,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260953747] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:39:52,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:39:52,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:39:52,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433443502] [2021-12-14 18:39:52,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:39:52,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:39:52,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:39:52,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:39:52,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:39:52,294 INFO L87 Difference]: Start difference. First operand 11217 states and 15983 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 18:39:54,514 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:39:57,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:39:57,319 INFO L93 Difference]: Finished difference Result 11427 states and 16276 transitions. [2021-12-14 18:39:57,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-14 18:39:57,320 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 191 [2021-12-14 18:39:57,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:39:57,368 INFO L225 Difference]: With dead ends: 11427 [2021-12-14 18:39:57,368 INFO L226 Difference]: Without dead ends: 11425 [2021-12-14 18:39:57,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-14 18:39:57,376 INFO L933 BasicCegarLoop]: 2953 mSDtfsCounter, 2640 mSDsluCounter, 6335 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 1041 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3076 SdHoareTripleChecker+Valid, 9288 SdHoareTripleChecker+Invalid, 3423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1041 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-12-14 18:39:57,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3076 Valid, 9288 Invalid, 3423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1041 Valid, 2381 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2021-12-14 18:39:57,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11425 states. [2021-12-14 18:39:57,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11425 to 11221. [2021-12-14 18:39:57,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11221 states, 7608 states have (on average 1.246713985278654) internal successors, (9485), 7727 states have internal predecessors, (9485), 3211 states have call successors, (3211), 385 states have call predecessors, (3211), 399 states have return successors, (3290), 3182 states have call predecessors, (3290), 3208 states have call successors, (3290) [2021-12-14 18:39:57,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11221 states to 11221 states and 15986 transitions. [2021-12-14 18:39:57,804 INFO L78 Accepts]: Start accepts. Automaton has 11221 states and 15986 transitions. Word has length 191 [2021-12-14 18:39:57,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:39:57,805 INFO L470 AbstractCegarLoop]: Abstraction has 11221 states and 15986 transitions. [2021-12-14 18:39:57,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 18:39:57,806 INFO L276 IsEmpty]: Start isEmpty. Operand 11221 states and 15986 transitions. [2021-12-14 18:39:57,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-12-14 18:39:57,810 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:39:57,810 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:39:57,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-14 18:39:57,811 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:39:57,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:39:57,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1200507849, now seen corresponding path program 1 times [2021-12-14 18:39:57,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:39:57,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843087142] [2021-12-14 18:39:57,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:39:57,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:39:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:57,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:39:57,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:57,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:57,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:39:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:57,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:57,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:39:57,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:58,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:58,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:39:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:58,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:58,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:58,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:39:58,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:58,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:58,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:39:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:58,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:58,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:58,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:39:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:58,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:58,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:58,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:39:58,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:58,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:58,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:58,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:39:58,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:58,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:58,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:58,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:39:58,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:58,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:58,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:58,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-14 18:39:58,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:58,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-14 18:39:58,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:58,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-14 18:39:58,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:58,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 18:39:58,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:58,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-14 18:39:58,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:58,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:58,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:58,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-14 18:39:58,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:58,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-14 18:39:58,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:58,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-14 18:39:58,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:58,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-14 18:39:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:58,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-14 18:39:58,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:58,187 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2021-12-14 18:39:58,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:39:58,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843087142] [2021-12-14 18:39:58,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843087142] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:39:58,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:39:58,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:39:58,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204528835] [2021-12-14 18:39:58,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:39:58,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:39:58,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:39:58,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:39:58,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:39:58,190 INFO L87 Difference]: Start difference. First operand 11221 states and 15986 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-14 18:40:00,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:40:03,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:40:03,343 INFO L93 Difference]: Finished difference Result 11431 states and 16279 transitions. [2021-12-14 18:40:03,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-14 18:40:03,347 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 196 [2021-12-14 18:40:03,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:40:03,396 INFO L225 Difference]: With dead ends: 11431 [2021-12-14 18:40:03,396 INFO L226 Difference]: Without dead ends: 11429 [2021-12-14 18:40:03,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-14 18:40:03,408 INFO L933 BasicCegarLoop]: 2952 mSDtfsCounter, 2640 mSDsluCounter, 6332 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 1040 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3077 SdHoareTripleChecker+Valid, 9284 SdHoareTripleChecker+Invalid, 3422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1040 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-12-14 18:40:03,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3077 Valid, 9284 Invalid, 3422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1040 Valid, 2381 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2021-12-14 18:40:03,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11429 states. [2021-12-14 18:40:03,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11429 to 11225. [2021-12-14 18:40:03,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11225 states, 7611 states have (on average 1.2466167389304954) internal successors, (9488), 7730 states have internal predecessors, (9488), 3211 states have call successors, (3211), 386 states have call predecessors, (3211), 400 states have return successors, (3290), 3182 states have call predecessors, (3290), 3208 states have call successors, (3290) [2021-12-14 18:40:03,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11225 states to 11225 states and 15989 transitions. [2021-12-14 18:40:03,825 INFO L78 Accepts]: Start accepts. Automaton has 11225 states and 15989 transitions. Word has length 196 [2021-12-14 18:40:03,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:40:03,827 INFO L470 AbstractCegarLoop]: Abstraction has 11225 states and 15989 transitions. [2021-12-14 18:40:03,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-14 18:40:03,828 INFO L276 IsEmpty]: Start isEmpty. Operand 11225 states and 15989 transitions. [2021-12-14 18:40:03,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-12-14 18:40:03,834 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:40:03,834 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:40:03,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 18:40:03,835 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:40:03,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:40:03,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1467238827, now seen corresponding path program 1 times [2021-12-14 18:40:03,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:40:03,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269728589] [2021-12-14 18:40:03,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:40:03,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:40:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:40:04,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:04,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:40:04,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:04,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:40:04,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:04,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:40:04,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:04,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:40:04,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:04,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:40:04,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:04,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:40:04,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:40:04,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:04,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:40:04,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:04,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:40:04,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:04,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-14 18:40:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-14 18:40:04,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-14 18:40:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 18:40:04,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-14 18:40:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:04,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-14 18:40:04,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-14 18:40:04,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-14 18:40:04,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-14 18:40:04,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-14 18:40:04,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-14 18:40:04,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:04,298 INFO L134 CoverageAnalysis]: Checked inductivity of 591 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2021-12-14 18:40:04,299 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:40:04,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269728589] [2021-12-14 18:40:04,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269728589] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:40:04,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:40:04,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:40:04,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328573530] [2021-12-14 18:40:04,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:40:04,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:40:04,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:40:04,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:40:04,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:40:04,301 INFO L87 Difference]: Start difference. First operand 11225 states and 15989 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-14 18:40:06,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:40:07,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []