./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 ff03de63 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-dev-ff03de6 [2021-12-21 17:06:36,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 17:06:36,792 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 17:06:36,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 17:06:36,825 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 17:06:36,826 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 17:06:36,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 17:06:36,828 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 17:06:36,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 17:06:36,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 17:06:36,830 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 17:06:36,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 17:06:36,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 17:06:36,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 17:06:36,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 17:06:36,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 17:06:36,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 17:06:36,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 17:06:36,836 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 17:06:36,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 17:06:36,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 17:06:36,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 17:06:36,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 17:06:36,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 17:06:36,842 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 17:06:36,843 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 17:06:36,843 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 17:06:36,844 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 17:06:36,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 17:06:36,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 17:06:36,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 17:06:36,846 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 17:06:36,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 17:06:36,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 17:06:36,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 17:06:36,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 17:06:36,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 17:06:36,848 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 17:06:36,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 17:06:36,849 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 17:06:36,849 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 17:06:36,850 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 17:06:36,863 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 17:06:36,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 17:06:36,863 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 17:06:36,863 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 17:06:36,864 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 17:06:36,864 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 17:06:36,864 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 17:06:36,865 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 17:06:36,865 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 17:06:36,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 17:06:36,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 17:06:36,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 17:06:36,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 17:06:36,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 17:06:36,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 17:06:36,866 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 17:06:36,866 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 17:06:36,866 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 17:06:36,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 17:06:36,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 17:06:36,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 17:06:36,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 17:06:36,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 17:06:36,867 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 17:06:36,867 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 17:06:36,867 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 17:06:36,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 17:06:36,868 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 17:06:36,868 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 17:06:36,868 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 17:06:36,868 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 17:06:36,868 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 265e49c3377c52c97dc3fc0a083b7daee63958176975b73f1e1d54651892cb04 [2021-12-21 17:06:37,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 17:06:37,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 17:06:37,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 17:06:37,040 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 17:06:37,041 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 17:06:37,042 INFO L432 ainManager$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 [2021-12-21 17:06:37,081 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/147136b02/d0e8f217ff7f4e1fb65cb2ce85c7e745/FLAG3a569e7c1 [2021-12-21 17:06:37,717 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 17:06:37,718 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 [2021-12-21 17:06:37,761 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/147136b02/d0e8f217ff7f4e1fb65cb2ce85c7e745/FLAG3a569e7c1 [2021-12-21 17:06:37,879 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/147136b02/d0e8f217ff7f4e1fb65cb2ce85c7e745 [2021-12-21 17:06:37,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 17:06:37,881 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 17:06:37,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 17:06:37,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 17:06:37,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 17:06:37,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 05:06:37" (1/1) ... [2021-12-21 17:06:37,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6403dbd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:06:37, skipping insertion in model container [2021-12-21 17:06:37,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 05:06:37" (1/1) ... [2021-12-21 17:06:37,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 17:06:37,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 17:06:40,049 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] [2021-12-21 17:06:40,052 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] [2021-12-21 17:06:40,053 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] [2021-12-21 17:06:40,058 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] [2021-12-21 17:06:40,081 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 17:06:40,115 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 17:06:40,382 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] [2021-12-21 17:06:40,384 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] [2021-12-21 17:06:40,384 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] [2021-12-21 17:06:40,384 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] [2021-12-21 17:06:40,393 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 17:06:40,474 INFO L208 MainTranslator]: Completed translation [2021-12-21 17:06:40,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:06:40 WrapperNode [2021-12-21 17:06:40,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 17:06:40,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 17:06:40,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 17:06:40,476 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 17:06:40,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:06:40" (1/1) ... [2021-12-21 17:06:40,566 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:06:40" (1/1) ... [2021-12-21 17:06:40,724 INFO L137 Inliner]: procedures = 411, calls = 2777, calls flagged for inlining = 214, calls inlined = 198, statements flattened = 6084 [2021-12-21 17:06:40,725 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 17:06:40,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 17:06:40,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 17:06:40,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 17:06:40,735 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:06:40" (1/1) ... [2021-12-21 17:06:40,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:06:40" (1/1) ... [2021-12-21 17:06:40,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:06:40" (1/1) ... [2021-12-21 17:06:40,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:06:40" (1/1) ... [2021-12-21 17:06:40,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:06:40" (1/1) ... [2021-12-21 17:06:40,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:06:40" (1/1) ... [2021-12-21 17:06:40,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:06:40" (1/1) ... [2021-12-21 17:06:40,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 17:06:40,981 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 17:06:40,981 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 17:06:40,981 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 17:06:40,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:06:40" (1/1) ... [2021-12-21 17:06:40,987 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 17:06:40,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 17:06:41,004 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) [2021-12-21 17:06:41,009 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 [2021-12-21 17:06:41,045 INFO L130 BoogieDeclarations]: Found specification of procedure adm8211_set_bssid [2021-12-21 17:06:41,046 INFO L138 BoogieDeclarations]: Found implementation of procedure adm8211_set_bssid [2021-12-21 17:06:41,046 INFO L130 BoogieDeclarations]: Found specification of procedure adm8211_start [2021-12-21 17:06:41,046 INFO L138 BoogieDeclarations]: Found implementation of procedure adm8211_start [2021-12-21 17:06:41,046 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-21 17:06:41,046 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-21 17:06:41,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-21 17:06:41,046 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-21 17:06:41,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 17:06:41,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 17:06:41,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-21 17:06:41,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-21 17:06:41,055 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-21 17:06:41,055 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-21 17:06:41,055 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-21 17:06:41,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-21 17:06:41,055 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-21 17:06:41,055 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-21 17:06:41,055 INFO L130 BoogieDeclarations]: Found specification of procedure adm8211_rf_write_syn_al2210l [2021-12-21 17:06:41,056 INFO L138 BoogieDeclarations]: Found implementation of procedure adm8211_rf_write_syn_al2210l [2021-12-21 17:06:41,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-21 17:06:41,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-21 17:06:41,056 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-21 17:06:41,056 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-21 17:06:41,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-21 17:06:41,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-21 17:06:41,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_adm8211_priv [2021-12-21 17:06:41,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_adm8211_priv [2021-12-21 17:06:41,057 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-21 17:06:41,057 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-21 17:06:41,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 17:06:41,057 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-21 17:06:41,057 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-21 17:06:41,057 INFO L130 BoogieDeclarations]: Found specification of procedure adm8211_rf_set_channel [2021-12-21 17:06:41,057 INFO L138 BoogieDeclarations]: Found implementation of procedure adm8211_rf_set_channel [2021-12-21 17:06:41,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 17:06:41,058 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-21 17:06:41,058 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-21 17:06:41,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 17:06:41,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-21 17:06:41,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-21 17:06:41,058 INFO L130 BoogieDeclarations]: Found specification of procedure adm8211_write_sram [2021-12-21 17:06:41,058 INFO L138 BoogieDeclarations]: Found implementation of procedure adm8211_write_sram [2021-12-21 17:06:41,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 17:06:41,059 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-21 17:06:41,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-21 17:06:41,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-21 17:06:41,059 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-21 17:06:41,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-21 17:06:41,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-21 17:06:41,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-21 17:06:41,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-21 17:06:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2021-12-21 17:06:41,060 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2021-12-21 17:06:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-21 17:06:41,060 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-21 17:06:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-21 17:06:41,061 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-21 17:06:41,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-21 17:06:41,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-21 17:06:41,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 17:06:41,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-21 17:06:41,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-21 17:06:41,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-21 17:06:41,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-21 17:06:41,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 17:06:41,062 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2021-12-21 17:06:41,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2021-12-21 17:06:41,062 INFO L130 BoogieDeclarations]: Found specification of procedure adm8211_rf_write_syn_max2820 [2021-12-21 17:06:41,062 INFO L138 BoogieDeclarations]: Found implementation of procedure adm8211_rf_write_syn_max2820 [2021-12-21 17:06:41,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-21 17:06:41,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-21 17:06:41,062 INFO L130 BoogieDeclarations]: Found specification of procedure adm8211_write_bbp [2021-12-21 17:06:41,062 INFO L138 BoogieDeclarations]: Found implementation of procedure adm8211_write_bbp [2021-12-21 17:06:41,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 17:06:41,063 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 17:06:41,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 17:06:41,063 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-21 17:06:41,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-21 17:06:41,063 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-21 17:06:41,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-21 17:06:41,063 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-21 17:06:41,064 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-21 17:06:41,064 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-21 17:06:41,064 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-21 17:06:41,064 INFO L130 BoogieDeclarations]: Found specification of procedure adm8211_stop [2021-12-21 17:06:41,064 INFO L138 BoogieDeclarations]: Found implementation of procedure adm8211_stop [2021-12-21 17:06:41,064 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-12-21 17:06:41,064 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-12-21 17:06:41,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 17:06:41,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 17:06:41,065 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-21 17:06:41,065 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-21 17:06:41,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 17:06:41,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 17:06:41,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 17:06:41,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 17:06:41,065 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2021-12-21 17:06:41,065 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2021-12-21 17:06:41,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-21 17:06:41,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-21 17:06:41,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ieee80211_free_hw [2021-12-21 17:06:41,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ieee80211_free_hw [2021-12-21 17:06:41,066 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-12-21 17:06:41,066 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-12-21 17:06:41,066 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-21 17:06:41,066 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-21 17:06:41,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-21 17:06:41,066 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-21 17:06:41,067 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-21 17:06:41,067 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-21 17:06:41,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 17:06:41,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 17:06:41,067 INFO L130 BoogieDeclarations]: Found specification of procedure adm8211_resume [2021-12-21 17:06:41,067 INFO L138 BoogieDeclarations]: Found implementation of procedure adm8211_resume [2021-12-21 17:06:41,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 17:06:41,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-21 17:06:41,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-21 17:06:41,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_adm8211_priv [2021-12-21 17:06:41,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_adm8211_priv [2021-12-21 17:06:41,068 INFO L130 BoogieDeclarations]: Found specification of procedure adm8211_remove [2021-12-21 17:06:41,068 INFO L138 BoogieDeclarations]: Found implementation of procedure adm8211_remove [2021-12-21 17:06:41,068 INFO L130 BoogieDeclarations]: Found specification of procedure adm8211_update_mode [2021-12-21 17:06:41,068 INFO L138 BoogieDeclarations]: Found implementation of procedure adm8211_update_mode [2021-12-21 17:06:41,068 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-21 17:06:41,068 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-21 17:06:41,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 17:06:41,069 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2021-12-21 17:06:41,069 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2021-12-21 17:06:41,069 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-12-21 17:06:41,069 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-12-21 17:06:41,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 17:06:41,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 17:06:41,069 INFO L130 BoogieDeclarations]: Found specification of procedure adm8211_rf_write_syn_rfmd2958 [2021-12-21 17:06:41,070 INFO L138 BoogieDeclarations]: Found implementation of procedure adm8211_rf_write_syn_rfmd2958 [2021-12-21 17:06:41,070 INFO L130 BoogieDeclarations]: Found specification of procedure adm8211_rf_write_syn_rfmd2948 [2021-12-21 17:06:41,070 INFO L138 BoogieDeclarations]: Found implementation of procedure adm8211_rf_write_syn_rfmd2948 [2021-12-21 17:06:41,070 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-12-21 17:06:41,070 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-12-21 17:06:41,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-21 17:06:41,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-21 17:06:41,070 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-21 17:06:41,071 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-21 17:06:41,071 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-21 17:06:41,071 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-21 17:06:41,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 17:06:41,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-21 17:06:41,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-21 17:06:41,071 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2021-12-21 17:06:41,071 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2021-12-21 17:06:41,815 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 17:06:41,817 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 17:06:42,485 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 17:06:50,924 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-21 17:06:51,014 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 17:06:51,031 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 17:06:51,032 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 17:06:51,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 05:06:51 BoogieIcfgContainer [2021-12-21 17:06:51,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 17:06:51,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 17:06:51,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 17:06:51,039 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 17:06:51,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 05:06:37" (1/3) ... [2021-12-21 17:06:51,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fc4c1f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 05:06:51, skipping insertion in model container [2021-12-21 17:06:51,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:06:40" (2/3) ... [2021-12-21 17:06:51,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fc4c1f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 05:06:51, skipping insertion in model container [2021-12-21 17:06:51,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 05:06:51" (3/3) ... [2021-12-21 17:06:51,042 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i [2021-12-21 17:06:51,046 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 17:06:51,046 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-21 17:06:51,093 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 17:06:51,098 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 [2021-12-21 17:06:51,098 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-21 17:06:51,147 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) [2021-12-21 17:06:51,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-21 17:06:51,156 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:06:51,157 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] [2021-12-21 17:06:51,157 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)] === [2021-12-21 17:06:51,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:06:51,161 INFO L85 PathProgramCache]: Analyzing trace with hash 608625239, now seen corresponding path program 1 times [2021-12-21 17:06:51,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:06:51,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728568718] [2021-12-21 17:06:51,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:06:51,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:06:51,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:06:51,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:51,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:06:51,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:51,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:06:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:06:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:51,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:06:51,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:51,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:06:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:51,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:06:51,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:51,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:06:51,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:51,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:06:51,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:51,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:06:51,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 17:06:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-21 17:06:51,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,931 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-12-21 17:06:51,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:06:51,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728568718] [2021-12-21 17:06:51,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728568718] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:06:51,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:06:51,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:06:51,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612454828] [2021-12-21 17:06:51,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:06:51,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:06:51,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:06:51,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:06:51,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:06:51,981 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) [2021-12-21 17:06:54,206 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 [] [2021-12-21 17:06:58,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:06:58,194 INFO L93 Difference]: Finished difference Result 6121 states and 8831 transitions. [2021-12-21 17:06:58,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:06:58,197 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 [2021-12-21 17:06:58,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:06:58,296 INFO L225 Difference]: With dead ends: 6121 [2021-12-21 17:06:58,301 INFO L226 Difference]: Without dead ends: 4047 [2021-12-21 17:06:58,324 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 [2021-12-21 17:06:58,329 INFO L933 BasicCegarLoop]: 3382 mSDtfsCounter, 3006 mSDsluCounter, 3647 mSDsCounter, 0 mSdLazyCounter, 1765 mSolverCounterSat, 1488 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3528 SdHoareTripleChecker+Valid, 7029 SdHoareTripleChecker+Invalid, 3254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1488 IncrementalHoareTripleChecker+Valid, 1765 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-12-21 17:06:58,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3528 Valid, 7029 Invalid, 3254 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1488 Valid, 1765 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2021-12-21 17:06:58,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4047 states. [2021-12-21 17:06:58,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4047 to 3932. [2021-12-21 17:06:58,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3932 states, 2684 states have (on average 1.2518628912071534) internal successors, (3360), 2720 states have internal predecessors, (3360), 1118 states have call successors, (1118), 128 states have call predecessors, (1118), 127 states have return successors, (1115), 1107 states have call predecessors, (1115), 1115 states have call successors, (1115) [2021-12-21 17:06:58,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3932 states to 3932 states and 5593 transitions. [2021-12-21 17:06:58,579 INFO L78 Accepts]: Start accepts. Automaton has 3932 states and 5593 transitions. Word has length 134 [2021-12-21 17:06:58,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:06:58,581 INFO L470 AbstractCegarLoop]: Abstraction has 3932 states and 5593 transitions. [2021-12-21 17:06:58,581 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) [2021-12-21 17:06:58,582 INFO L276 IsEmpty]: Start isEmpty. Operand 3932 states and 5593 transitions. [2021-12-21 17:06:58,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-21 17:06:58,590 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:06:58,590 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] [2021-12-21 17:06:58,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 17:06:58,590 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)] === [2021-12-21 17:06:58,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:06:58,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1010884305, now seen corresponding path program 1 times [2021-12-21 17:06:58,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:06:58,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473607306] [2021-12-21 17:06:58,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:06:58,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:06:58,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:58,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:06:58,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:58,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:58,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:58,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:06:58,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:58,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:58,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:58,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:06:58,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:58,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:58,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:06:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:58,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:58,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:58,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:06:58,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:58,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:58,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:58,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:06:58,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:58,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:58,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:58,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:06:58,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:58,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:58,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:58,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:06:58,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:58,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:58,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:58,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:06:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:58,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:58,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:06:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:58,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:58,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:58,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 17:06:58,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:58,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-21 17:06:58,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:58,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-21 17:06:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:58,930 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-12-21 17:06:58,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:06:58,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473607306] [2021-12-21 17:06:58,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473607306] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:06:58,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:06:58,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:06:58,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423307280] [2021-12-21 17:06:58,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:06:58,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:06:58,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:06:58,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:06:58,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:06:58,933 INFO L87 Difference]: Start difference. First operand 3932 states and 5593 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) [2021-12-21 17:07:01,080 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 [] [2021-12-21 17:07:04,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:07:04,975 INFO L93 Difference]: Finished difference Result 11352 states and 16168 transitions. [2021-12-21 17:07:04,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:07:04,976 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 [2021-12-21 17:07:04,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:07:05,022 INFO L225 Difference]: With dead ends: 11352 [2021-12-21 17:07:05,022 INFO L226 Difference]: Without dead ends: 7445 [2021-12-21 17:07:05,045 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 [2021-12-21 17:07:05,045 INFO L933 BasicCegarLoop]: 3325 mSDtfsCounter, 2728 mSDsluCounter, 3664 mSDsCounter, 0 mSdLazyCounter, 1697 mSolverCounterSat, 1500 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3197 SdHoareTripleChecker+Valid, 6989 SdHoareTripleChecker+Invalid, 3198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1500 IncrementalHoareTripleChecker+Valid, 1697 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-12-21 17:07:05,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3197 Valid, 6989 Invalid, 3198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1500 Valid, 1697 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2021-12-21 17:07:05,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7445 states. [2021-12-21 17:07:05,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7445 to 7273. [2021-12-21 17:07:05,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7273 states, 4946 states have (on average 1.2480792559644156) internal successors, (6173), 5024 states have internal predecessors, (6173), 2069 states have call successors, (2069), 246 states have call predecessors, (2069), 255 states have return successors, (2124), 2048 states have call predecessors, (2124), 2066 states have call successors, (2124) [2021-12-21 17:07:05,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7273 states to 7273 states and 10366 transitions. [2021-12-21 17:07:05,320 INFO L78 Accepts]: Start accepts. Automaton has 7273 states and 10366 transitions. Word has length 148 [2021-12-21 17:07:05,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:07:05,322 INFO L470 AbstractCegarLoop]: Abstraction has 7273 states and 10366 transitions. [2021-12-21 17:07:05,322 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) [2021-12-21 17:07:05,322 INFO L276 IsEmpty]: Start isEmpty. Operand 7273 states and 10366 transitions. [2021-12-21 17:07:05,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-12-21 17:07:05,328 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:07:05,328 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] [2021-12-21 17:07:05,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 17:07:05,328 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)] === [2021-12-21 17:07:05,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:07:05,329 INFO L85 PathProgramCache]: Analyzing trace with hash -2114336523, now seen corresponding path program 1 times [2021-12-21 17:07:05,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:07:05,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864661897] [2021-12-21 17:07:05,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:07:05,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:07:05,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:05,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:07:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:05,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:05,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:05,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:07:05,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:05,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:05,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:05,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:07:05,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:05,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:05,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:07:05,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:05,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:05,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:07:05,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:05,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:05,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:05,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:07:05,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:05,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:05,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:05,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:07:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:05,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:05,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:05,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:07:05,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:05,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:05,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:07:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:05,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:05,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:07:05,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:05,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:05,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:05,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 17:07:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:05,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 17:07:05,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:05,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-21 17:07:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:05,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-21 17:07:05,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:05,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-21 17:07:05,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:05,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:05,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:05,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-21 17:07:05,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:05,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-21 17:07:05,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:05,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-21 17:07:05,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:05,688 INFO L134 CoverageAnalysis]: Checked inductivity of 573 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2021-12-21 17:07:05,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:07:05,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864661897] [2021-12-21 17:07:05,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864661897] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:07:05,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:07:05,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:07:05,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888315692] [2021-12-21 17:07:05,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:07:05,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:07:05,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:07:05,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:07:05,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:07:05,693 INFO L87 Difference]: Start difference. First operand 7273 states and 10366 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) [2021-12-21 17:07:07,867 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 [] [2021-12-21 17:07:10,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:07:10,875 INFO L93 Difference]: Finished difference Result 14770 states and 21026 transitions. [2021-12-21 17:07:10,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:07:10,876 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 [2021-12-21 17:07:10,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:07:10,938 INFO L225 Difference]: With dead ends: 14770 [2021-12-21 17:07:10,939 INFO L226 Difference]: Without dead ends: 11009 [2021-12-21 17:07:10,964 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 [2021-12-21 17:07:10,964 INFO L933 BasicCegarLoop]: 5316 mSDtfsCounter, 2607 mSDsluCounter, 4752 mSDsCounter, 0 mSdLazyCounter, 1805 mSolverCounterSat, 1051 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3124 SdHoareTripleChecker+Valid, 10068 SdHoareTripleChecker+Invalid, 2857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1051 IncrementalHoareTripleChecker+Valid, 1805 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-12-21 17:07:10,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3124 Valid, 10068 Invalid, 2857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1051 Valid, 1805 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2021-12-21 17:07:10,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11009 states. [2021-12-21 17:07:11,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11009 to 10782. [2021-12-21 17:07:11,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10782 states, 7342 states have (on average 1.248297466630346) internal successors, (9165), 7455 states have internal predecessors, (9165), 3056 states have call successors, (3056), 367 states have call predecessors, (3056), 381 states have return successors, (3135), 3027 states have call predecessors, (3135), 3053 states have call successors, (3135) [2021-12-21 17:07:11,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10782 states to 10782 states and 15356 transitions. [2021-12-21 17:07:11,402 INFO L78 Accepts]: Start accepts. Automaton has 10782 states and 15356 transitions. Word has length 186 [2021-12-21 17:07:11,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:07:11,403 INFO L470 AbstractCegarLoop]: Abstraction has 10782 states and 15356 transitions. [2021-12-21 17:07:11,404 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) [2021-12-21 17:07:11,404 INFO L276 IsEmpty]: Start isEmpty. Operand 10782 states and 15356 transitions. [2021-12-21 17:07:11,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-12-21 17:07:11,407 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:07:11,407 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] [2021-12-21 17:07:11,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 17:07:11,408 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)] === [2021-12-21 17:07:11,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:07:11,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1691634697, now seen corresponding path program 1 times [2021-12-21 17:07:11,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:07:11,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082281624] [2021-12-21 17:07:11,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:07:11,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:07:11,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:11,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:07:11,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:11,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:11,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:11,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:07:11,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:11,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:11,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:11,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:07:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:11,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:11,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:11,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:07:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:11,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:11,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:11,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:07:11,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:11,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:11,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:11,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:07:11,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:11,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:11,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:11,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:07:11,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:11,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:11,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:07:11,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:11,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:11,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:07:11,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:11,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:11,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:11,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:07:11,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:11,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:11,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:11,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 17:07:11,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:11,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 17:07:11,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:11,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-21 17:07:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:11,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-21 17:07:11,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:11,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-21 17:07:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:11,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:11,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:11,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-21 17:07:11,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:11,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-21 17:07:11,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:11,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-21 17:07:11,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:11,788 INFO L134 CoverageAnalysis]: Checked inductivity of 573 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2021-12-21 17:07:11,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:07:11,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082281624] [2021-12-21 17:07:11,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082281624] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:07:11,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:07:11,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:07:11,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735739177] [2021-12-21 17:07:11,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:07:11,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:07:11,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:07:11,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:07:11,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:07:11,790 INFO L87 Difference]: Start difference. First operand 10782 states and 15356 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) [2021-12-21 17:07:13,921 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 17:07:15,942 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 17:07:17,508 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 17:07:19,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 17:07:22,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:07:22,268 INFO L93 Difference]: Finished difference Result 10992 states and 15649 transitions. [2021-12-21 17:07:22,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 17:07:22,268 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 [2021-12-21 17:07:22,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:07:22,319 INFO L225 Difference]: With dead ends: 10992 [2021-12-21 17:07:22,335 INFO L226 Difference]: Without dead ends: 10990 [2021-12-21 17:07:22,346 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 [2021-12-21 17:07:22,360 INFO L933 BasicCegarLoop]: 2799 mSDtfsCounter, 2786 mSDsluCounter, 6014 mSDsCounter, 0 mSdLazyCounter, 1832 mSolverCounterSat, 1085 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3186 SdHoareTripleChecker+Valid, 8813 SdHoareTripleChecker+Invalid, 2919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1085 IncrementalHoareTripleChecker+Valid, 1832 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2021-12-21 17:07:22,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3186 Valid, 8813 Invalid, 2919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1085 Valid, 1832 Invalid, 2 Unknown, 0 Unchecked, 10.2s Time] [2021-12-21 17:07:22,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10990 states. [2021-12-21 17:07:22,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10990 to 10786. [2021-12-21 17:07:22,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10786 states, 7345 states have (on average 1.2481960517358748) internal successors, (9168), 7458 states have internal predecessors, (9168), 3056 states have call successors, (3056), 368 states have call predecessors, (3056), 382 states have return successors, (3135), 3027 states have call predecessors, (3135), 3053 states have call successors, (3135) [2021-12-21 17:07:22,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10786 states to 10786 states and 15359 transitions. [2021-12-21 17:07:22,853 INFO L78 Accepts]: Start accepts. Automaton has 10786 states and 15359 transitions. Word has length 186 [2021-12-21 17:07:22,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:07:22,854 INFO L470 AbstractCegarLoop]: Abstraction has 10786 states and 15359 transitions. [2021-12-21 17:07:22,854 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) [2021-12-21 17:07:22,854 INFO L276 IsEmpty]: Start isEmpty. Operand 10786 states and 15359 transitions. [2021-12-21 17:07:22,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-12-21 17:07:22,859 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:07:22,860 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] [2021-12-21 17:07:22,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 17:07:22,860 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)] === [2021-12-21 17:07:22,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:07:22,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1417022869, now seen corresponding path program 1 times [2021-12-21 17:07:22,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:07:22,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250962515] [2021-12-21 17:07:22,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:07:22,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:07:22,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:07:23,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:23,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:07:23,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:07:23,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:23,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:07:23,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:23,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:07:23,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:23,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:07:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:23,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:07:23,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:23,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:07:23,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:23,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:07:23,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:23,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:07:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:23,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 17:07:23,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 17:07:23,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-21 17:07:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-21 17:07:23,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-21 17:07:23,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:23,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-21 17:07:23,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-21 17:07:23,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-21 17:07:23,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-21 17:07:23,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:23,236 INFO L134 CoverageAnalysis]: Checked inductivity of 575 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2021-12-21 17:07:23,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:07:23,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250962515] [2021-12-21 17:07:23,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250962515] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:07:23,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:07:23,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:07:23,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215670358] [2021-12-21 17:07:23,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:07:23,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:07:23,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:07:23,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:07:23,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:07:23,238 INFO L87 Difference]: Start difference. First operand 10786 states and 15359 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) [2021-12-21 17:07:25,464 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 [] [2021-12-21 17:07:28,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:07:28,550 INFO L93 Difference]: Finished difference Result 11145 states and 15862 transitions. [2021-12-21 17:07:28,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 17:07:28,550 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 [2021-12-21 17:07:28,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:07:28,588 INFO L225 Difference]: With dead ends: 11145 [2021-12-21 17:07:28,589 INFO L226 Difference]: Without dead ends: 11143 [2021-12-21 17:07:28,596 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 [2021-12-21 17:07:28,596 INFO L933 BasicCegarLoop]: 2951 mSDtfsCounter, 2640 mSDsluCounter, 6329 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 1041 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3078 SdHoareTripleChecker+Valid, 9280 SdHoareTripleChecker+Invalid, 3423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1041 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-12-21 17:07:28,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3078 Valid, 9280 Invalid, 3423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1041 Valid, 2381 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2021-12-21 17:07:28,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11143 states. [2021-12-21 17:07:28,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11143 to 10939. [2021-12-21 17:07:28,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10939 states, 7437 states have (on average 1.2471426650531128) internal successors, (9275), 7552 states have internal predecessors, (9275), 3109 states have call successors, (3109), 376 states have call predecessors, (3109), 390 states have return successors, (3188), 3080 states have call predecessors, (3188), 3106 states have call successors, (3188) [2021-12-21 17:07:28,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10939 states to 10939 states and 15572 transitions. [2021-12-21 17:07:28,951 INFO L78 Accepts]: Start accepts. Automaton has 10939 states and 15572 transitions. Word has length 191 [2021-12-21 17:07:28,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:07:28,952 INFO L470 AbstractCegarLoop]: Abstraction has 10939 states and 15572 transitions. [2021-12-21 17:07:28,952 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) [2021-12-21 17:07:28,953 INFO L276 IsEmpty]: Start isEmpty. Operand 10939 states and 15572 transitions. [2021-12-21 17:07:28,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-12-21 17:07:28,962 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:07:28,963 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] [2021-12-21 17:07:28,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 17:07:28,963 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)] === [2021-12-21 17:07:28,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:07:28,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1200507849, now seen corresponding path program 1 times [2021-12-21 17:07:28,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:07:28,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013720082] [2021-12-21 17:07:28,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:07:28,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:07:29,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:07:29,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:29,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:07:29,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:07:29,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:29,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:07:29,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:29,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:07:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:07:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:29,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:07:29,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:29,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:07:29,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:29,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:07:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:07:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:29,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 17:07:29,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 17:07:29,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-21 17:07:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-21 17:07:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-21 17:07:29,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:29,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-21 17:07:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-21 17:07:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-21 17:07:29,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-21 17:07:29,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-21 17:07:29,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:29,329 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2021-12-21 17:07:29,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:07:29,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013720082] [2021-12-21 17:07:29,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013720082] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:07:29,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:07:29,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:07:29,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243477724] [2021-12-21 17:07:29,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:07:29,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:07:29,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:07:29,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:07:29,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:07:29,332 INFO L87 Difference]: Start difference. First operand 10939 states and 15572 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) [2021-12-21 17:07:31,563 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 [] [2021-12-21 17:07:34,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:07:34,362 INFO L93 Difference]: Finished difference Result 11149 states and 15865 transitions. [2021-12-21 17:07:34,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 17:07:34,362 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 [2021-12-21 17:07:34,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:07:34,411 INFO L225 Difference]: With dead ends: 11149 [2021-12-21 17:07:34,412 INFO L226 Difference]: Without dead ends: 11147 [2021-12-21 17:07:34,423 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 [2021-12-21 17:07:34,424 INFO L933 BasicCegarLoop]: 2953 mSDtfsCounter, 2640 mSDsluCounter, 6335 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 1040 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3076 SdHoareTripleChecker+Valid, 9288 SdHoareTripleChecker+Invalid, 3422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1040 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-12-21 17:07:34,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3076 Valid, 9288 Invalid, 3422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1040 Valid, 2381 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2021-12-21 17:07:34,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11147 states. [2021-12-21 17:07:34,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11147 to 10943. [2021-12-21 17:07:34,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10943 states, 7440 states have (on average 1.2470430107526882) internal successors, (9278), 7555 states have internal predecessors, (9278), 3109 states have call successors, (3109), 377 states have call predecessors, (3109), 391 states have return successors, (3188), 3080 states have call predecessors, (3188), 3106 states have call successors, (3188) [2021-12-21 17:07:34,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10943 states to 10943 states and 15575 transitions. [2021-12-21 17:07:34,926 INFO L78 Accepts]: Start accepts. Automaton has 10943 states and 15575 transitions. Word has length 196 [2021-12-21 17:07:34,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:07:34,928 INFO L470 AbstractCegarLoop]: Abstraction has 10943 states and 15575 transitions. [2021-12-21 17:07:34,928 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) [2021-12-21 17:07:34,929 INFO L276 IsEmpty]: Start isEmpty. Operand 10943 states and 15575 transitions. [2021-12-21 17:07:34,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-12-21 17:07:34,934 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:07:34,934 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] [2021-12-21 17:07:34,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 17:07:34,935 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)] === [2021-12-21 17:07:34,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:07:34,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1467238827, now seen corresponding path program 1 times [2021-12-21 17:07:34,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:07:34,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864192582] [2021-12-21 17:07:34,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:07:34,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:07:34,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:07:35,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:35,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:07:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:07:35,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:35,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:07:35,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:35,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:07:35,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:35,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:07:35,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:35,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:07:35,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:35,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:07:35,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:35,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:07:35,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:07:35,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:35,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 17:07:35,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 17:07:35,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-21 17:07:35,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-21 17:07:35,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-21 17:07:35,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:07:35,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-21 17:07:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-21 17:07:35,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-21 17:07:35,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-21 17:07:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-21 17:07:35,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-21 17:07:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:07:35,278 INFO L134 CoverageAnalysis]: Checked inductivity of 591 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2021-12-21 17:07:35,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:07:35,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864192582] [2021-12-21 17:07:35,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864192582] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:07:35,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:07:35,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:07:35,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750153430] [2021-12-21 17:07:35,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:07:35,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:07:35,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:07:35,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:07:35,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:07:35,280 INFO L87 Difference]: Start difference. First operand 10943 states and 15575 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) [2021-12-21 17:07:37,515 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 [] [2021-12-21 17:07:40,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:07:40,172 INFO L93 Difference]: Finished difference Result 11153 states and 15868 transitions. [2021-12-21 17:07:40,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 17:07:40,172 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, (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) Word has length 201 [2021-12-21 17:07:40,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:07:40,293 INFO L225 Difference]: With dead ends: 11153 [2021-12-21 17:07:40,294 INFO L226 Difference]: Without dead ends: 11151 [2021-12-21 17:07:40,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-21 17:07:40,312 INFO L933 BasicCegarLoop]: 2952 mSDtfsCounter, 2640 mSDsluCounter, 6332 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 1039 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3077 SdHoareTripleChecker+Valid, 9284 SdHoareTripleChecker+Invalid, 3421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1039 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-12-21 17:07:40,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3077 Valid, 9284 Invalid, 3421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1039 Valid, 2381 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2021-12-21 17:07:40,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11151 states.