./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-media-rc-nuvoton-cir.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 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-media-rc-nuvoton-cir.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 4bd03bf538c8a1f05055d45724b67645b210b4f99e6ffddc4b441645e05ec36a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 07:41:23,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 07:41:23,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 07:41:23,591 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 07:41:23,592 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 07:41:23,594 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 07:41:23,596 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 07:41:23,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 07:41:23,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 07:41:23,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 07:41:23,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 07:41:23,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 07:41:23,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 07:41:23,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 07:41:23,613 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 07:41:23,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 07:41:23,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 07:41:23,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 07:41:23,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 07:41:23,627 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 07:41:23,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 07:41:23,630 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 07:41:23,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 07:41:23,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 07:41:23,637 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 07:41:23,638 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 07:41:23,638 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 07:41:23,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 07:41:23,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 07:41:23,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 07:41:23,641 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 07:41:23,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 07:41:23,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 07:41:23,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 07:41:23,645 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 07:41:23,646 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 07:41:23,646 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 07:41:23,647 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 07:41:23,648 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 07:41:23,648 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 07:41:23,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 07:41:23,650 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 07:41:23,683 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 07:41:23,684 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 07:41:23,684 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 07:41:23,684 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 07:41:23,685 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 07:41:23,686 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 07:41:23,686 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 07:41:23,686 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 07:41:23,687 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 07:41:23,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 07:41:23,688 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 07:41:23,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 07:41:23,688 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 07:41:23,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 07:41:23,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 07:41:23,689 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 07:41:23,689 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 07:41:23,689 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 07:41:23,689 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 07:41:23,690 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 07:41:23,690 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 07:41:23,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 07:41:23,690 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 07:41:23,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 07:41:23,691 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 07:41:23,691 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 07:41:23,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 07:41:23,693 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 07:41:23,693 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 07:41:23,693 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 07:41:23,693 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 07:41:23,694 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bd03bf538c8a1f05055d45724b67645b210b4f99e6ffddc4b441645e05ec36a [2021-11-17 07:41:23,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 07:41:23,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 07:41:23,957 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 07:41:23,958 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 07:41:23,959 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 07:41:23,960 INFO L432 ainManager$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-media-rc-nuvoton-cir.cil.i [2021-11-17 07:41:24,044 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12f975f8a/ffb52e36df5f4103a19711e266e51d2f/FLAG2d13d2f8e [2021-11-17 07:41:24,669 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 07:41:24,670 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-media-rc-nuvoton-cir.cil.i [2021-11-17 07:41:24,710 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12f975f8a/ffb52e36df5f4103a19711e266e51d2f/FLAG2d13d2f8e [2021-11-17 07:41:24,821 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12f975f8a/ffb52e36df5f4103a19711e266e51d2f [2021-11-17 07:41:24,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 07:41:24,824 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 07:41:24,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 07:41:24,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 07:41:24,830 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 07:41:24,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:41:24" (1/1) ... [2021-11-17 07:41:24,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@591a4d1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:41:24, skipping insertion in model container [2021-11-17 07:41:24,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:41:24" (1/1) ... [2021-11-17 07:41:24,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 07:41:24,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 07:41:26,387 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-media-rc-nuvoton-cir.cil.i[196376,196389] [2021-11-17 07:41:26,390 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-media-rc-nuvoton-cir.cil.i[196545,196558] [2021-11-17 07:41:26,391 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-media-rc-nuvoton-cir.cil.i[196712,196725] [2021-11-17 07:41:26,392 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-media-rc-nuvoton-cir.cil.i[196880,196893] [2021-11-17 07:41:26,400 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 07:41:26,421 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 07:41:26,638 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-media-rc-nuvoton-cir.cil.i[196376,196389] [2021-11-17 07:41:26,638 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-media-rc-nuvoton-cir.cil.i[196545,196558] [2021-11-17 07:41:26,639 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-media-rc-nuvoton-cir.cil.i[196712,196725] [2021-11-17 07:41:26,639 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-media-rc-nuvoton-cir.cil.i[196880,196893] [2021-11-17 07:41:26,642 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 07:41:26,698 INFO L208 MainTranslator]: Completed translation [2021-11-17 07:41:26,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:41:26 WrapperNode [2021-11-17 07:41:26,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 07:41:26,700 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 07:41:26,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 07:41:26,700 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 07:41:26,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:41:26" (1/1) ... [2021-11-17 07:41:26,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:41:26" (1/1) ... [2021-11-17 07:41:26,862 INFO L137 Inliner]: procedures = 289, calls = 1101, calls flagged for inlining = 114, calls inlined = 94, statements flattened = 2346 [2021-11-17 07:41:26,862 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 07:41:26,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 07:41:26,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 07:41:26,865 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 07:41:26,875 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:41:26" (1/1) ... [2021-11-17 07:41:26,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:41:26" (1/1) ... [2021-11-17 07:41:26,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:41:26" (1/1) ... [2021-11-17 07:41:26,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:41:26" (1/1) ... [2021-11-17 07:41:26,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:41:26" (1/1) ... [2021-11-17 07:41:27,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:41:26" (1/1) ... [2021-11-17 07:41:27,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:41:26" (1/1) ... [2021-11-17 07:41:27,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 07:41:27,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 07:41:27,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 07:41:27,056 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 07:41:27,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:41:26" (1/1) ... [2021-11-17 07:41:27,064 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 07:41:27,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 07:41:27,093 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) [2021-11-17 07:41:27,117 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 [2021-11-17 07:41:27,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-17 07:41:27,141 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-17 07:41:27,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 07:41:27,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 07:41:27,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 07:41:27,141 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 07:41:27,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2021-11-17 07:41:27,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2021-11-17 07:41:27,142 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_efm_disable [2021-11-17 07:41:27,142 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_efm_disable [2021-11-17 07:41:27,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-17 07:41:27,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-17 07:41:27,142 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-17 07:41:27,142 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-17 07:41:27,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 07:41:27,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 07:41:27,143 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_len [2021-11-17 07:41:27,143 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_len [2021-11-17 07:41:27,143 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_cir_wake_reg_read [2021-11-17 07:41:27,143 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_cir_wake_reg_read [2021-11-17 07:41:27,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-17 07:41:27,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-17 07:41:27,144 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-17 07:41:27,144 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-17 07:41:27,144 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_clear_tx_fifo [2021-11-17 07:41:27,144 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_clear_tx_fifo [2021-11-17 07:41:27,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-17 07:41:27,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-17 07:41:27,145 INFO L130 BoogieDeclarations]: Found specification of procedure ir_raw_event_handle [2021-11-17 07:41:27,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_raw_event_handle [2021-11-17 07:41:27,145 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-17 07:41:27,145 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-17 07:41:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure rc_unregister_device [2021-11-17 07:41:27,146 INFO L138 BoogieDeclarations]: Found implementation of procedure rc_unregister_device [2021-11-17 07:41:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_clear_cir_wake_fifo [2021-11-17 07:41:27,146 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_clear_cir_wake_fifo [2021-11-17 07:41:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 07:41:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_process_rx_ir_data [2021-11-17 07:41:27,146 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_process_rx_ir_data [2021-11-17 07:41:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 07:41:27,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-17 07:41:27,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-17 07:41:27,147 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_cr_write [2021-11-17 07:41:27,147 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_cr_write [2021-11-17 07:41:27,147 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_remove [2021-11-17 07:41:27,147 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_remove [2021-11-17 07:41:27,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_47 [2021-11-17 07:41:27,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_47 [2021-11-17 07:41:27,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_45 [2021-11-17 07:41:27,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_45 [2021-11-17 07:41:27,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 07:41:27,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 07:41:27,150 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-17 07:41:27,150 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-17 07:41:27,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 07:41:27,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 07:41:27,151 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_cir_regs_init [2021-11-17 07:41:27,151 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_cir_regs_init [2021-11-17 07:41:27,151 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_cir_tx_inactive [2021-11-17 07:41:27,152 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_cir_tx_inactive [2021-11-17 07:41:27,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_NOT_ARG_SIGN [2021-11-17 07:41:27,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_NOT_ARG_SIGN [2021-11-17 07:41:27,152 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_clear_cir_fifo [2021-11-17 07:41:27,152 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_clear_cir_fifo [2021-11-17 07:41:27,152 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-17 07:41:27,152 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-17 07:41:27,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-17 07:41:27,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-17 07:41:27,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-17 07:41:27,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-17 07:41:27,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-17 07:41:27,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-17 07:41:27,154 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_cir_reg_read [2021-11-17 07:41:27,154 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_cir_reg_read [2021-11-17 07:41:27,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_nvt_lock_of_nvt_dev [2021-11-17 07:41:27,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_nvt_lock_of_nvt_dev [2021-11-17 07:41:27,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-17 07:41:27,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-17 07:41:27,154 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_get_rx_ir_data [2021-11-17 07:41:27,155 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_get_rx_ir_data [2021-11-17 07:41:27,155 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-17 07:41:27,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-17 07:41:27,155 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_resource [2021-11-17 07:41:27,156 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_resource [2021-11-17 07:41:27,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 07:41:27,156 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_cir_reg_write [2021-11-17 07:41:27,156 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_cir_reg_write [2021-11-17 07:41:27,156 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_valid [2021-11-17 07:41:27,156 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_valid [2021-11-17 07:41:27,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-17 07:41:27,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-17 07:41:27,157 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_set_cir_iren [2021-11-17 07:41:27,157 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_set_cir_iren [2021-11-17 07:41:27,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 07:41:27,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-17 07:41:27,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-17 07:41:27,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-17 07:41:27,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-17 07:41:27,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-17 07:41:27,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-17 07:41:27,158 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_set_reg_bit [2021-11-17 07:41:27,158 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_set_reg_bit [2021-11-17 07:41:27,159 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-17 07:41:27,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-17 07:41:27,159 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 07:41:27,159 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 07:41:27,159 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_cir_wake_regs_init [2021-11-17 07:41:27,159 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_cir_wake_regs_init [2021-11-17 07:41:27,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 07:41:27,160 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_cr_read [2021-11-17 07:41:27,160 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_cr_read [2021-11-17 07:41:27,161 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_enable_wake [2021-11-17 07:41:27,161 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_enable_wake [2021-11-17 07:41:27,163 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-17 07:41:27,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-17 07:41:27,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-17 07:41:27,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-17 07:41:27,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 07:41:27,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-17 07:41:27,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-17 07:41:27,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 07:41:27,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 07:41:27,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 07:41:27,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 07:41:27,171 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_cir_wake_reg_write [2021-11-17 07:41:27,171 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_cir_wake_reg_write [2021-11-17 07:41:27,171 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_efm_enable [2021-11-17 07:41:27,172 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_efm_enable [2021-11-17 07:41:27,172 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_disable_cir [2021-11-17 07:41:27,172 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_disable_cir [2021-11-17 07:41:27,172 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_start [2021-11-17 07:41:27,172 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_start [2021-11-17 07:41:27,172 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_select_logical_dev [2021-11-17 07:41:27,172 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_select_logical_dev [2021-11-17 07:41:27,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-17 07:41:27,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-17 07:41:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-17 07:41:27,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-17 07:41:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2021-11-17 07:41:27,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2021-11-17 07:41:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_shutdown [2021-11-17 07:41:27,173 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_shutdown [2021-11-17 07:41:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-17 07:41:27,173 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-17 07:41:27,174 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_drvdata [2021-11-17 07:41:27,174 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_drvdata [2021-11-17 07:41:27,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 07:41:27,174 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-11-17 07:41:27,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-11-17 07:41:27,174 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_valid [2021-11-17 07:41:27,174 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_valid [2021-11-17 07:41:27,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-17 07:41:27,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-17 07:41:27,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 07:41:27,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 07:41:27,595 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 07:41:27,597 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 07:41:27,916 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 07:41:31,316 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-17 07:41:31,371 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 07:41:31,393 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 07:41:31,393 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-17 07:41:31,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 07:41:31 BoogieIcfgContainer [2021-11-17 07:41:31,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 07:41:31,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 07:41:31,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 07:41:31,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 07:41:31,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:41:24" (1/3) ... [2021-11-17 07:41:31,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ffbdfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:41:31, skipping insertion in model container [2021-11-17 07:41:31,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:41:26" (2/3) ... [2021-11-17 07:41:31,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ffbdfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:41:31, skipping insertion in model container [2021-11-17 07:41:31,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 07:41:31" (3/3) ... [2021-11-17 07:41:31,405 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-rc-nuvoton-cir.cil.i [2021-11-17 07:41:31,409 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 07:41:31,409 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-17 07:41:31,458 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 07:41:31,465 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 [2021-11-17 07:41:31,465 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-17 07:41:31,520 INFO L276 IsEmpty]: Start isEmpty. Operand has 1073 states, 632 states have (on average 1.2373417721518987) internal successors, (782), 646 states have internal predecessors, (782), 368 states have call successors, (368), 71 states have call predecessors, (368), 70 states have return successors, (364), 363 states have call predecessors, (364), 364 states have call successors, (364) [2021-11-17 07:41:31,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-17 07:41:31,527 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:41:31,528 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:41:31,529 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)] === [2021-11-17 07:41:31,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:41:31,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1302694362, now seen corresponding path program 1 times [2021-11-17 07:41:31,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:41:31,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800260652] [2021-11-17 07:41:31,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:41:31,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:41:31,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:31,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:41:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:31,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:31,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:32,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:41:32,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:32,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:32,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:32,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:41:32,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:32,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:32,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:32,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 07:41:32,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:32,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:41:32,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:32,078 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-17 07:41:32,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:41:32,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800260652] [2021-11-17 07:41:32,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800260652] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:41:32,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:41:32,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:41:32,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837315395] [2021-11-17 07:41:32,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:41:32,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:41:32,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:41:32,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:41:32,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:41:32,118 INFO L87 Difference]: Start difference. First operand has 1073 states, 632 states have (on average 1.2373417721518987) internal successors, (782), 646 states have internal predecessors, (782), 368 states have call successors, (368), 71 states have call predecessors, (368), 70 states have return successors, (364), 363 states have call predecessors, (364), 364 states have call successors, (364) Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-17 07:41:35,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:41:35,434 INFO L93 Difference]: Finished difference Result 3210 states and 4628 transitions. [2021-11-17 07:41:35,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:41:35,440 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 57 [2021-11-17 07:41:35,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:41:35,467 INFO L225 Difference]: With dead ends: 3210 [2021-11-17 07:41:35,467 INFO L226 Difference]: Without dead ends: 2139 [2021-11-17 07:41:35,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:41:35,480 INFO L933 BasicCegarLoop]: 1651 mSDtfsCounter, 1511 mSDsluCounter, 1715 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 1067 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1848 SdHoareTripleChecker+Valid, 3366 SdHoareTripleChecker+Invalid, 2149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1067 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-17 07:41:35,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1848 Valid, 3366 Invalid, 2149 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1067 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-17 07:41:35,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2021-11-17 07:41:35,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 2055. [2021-11-17 07:41:35,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2055 states, 1211 states have (on average 1.23121387283237) internal successors, (1491), 1237 states have internal predecessors, (1491), 704 states have call successors, (704), 138 states have call predecessors, (704), 137 states have return successors, (701), 699 states have call predecessors, (701), 701 states have call successors, (701) [2021-11-17 07:41:35,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2055 states to 2055 states and 2896 transitions. [2021-11-17 07:41:35,699 INFO L78 Accepts]: Start accepts. Automaton has 2055 states and 2896 transitions. Word has length 57 [2021-11-17 07:41:35,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:41:35,700 INFO L470 AbstractCegarLoop]: Abstraction has 2055 states and 2896 transitions. [2021-11-17 07:41:35,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-17 07:41:35,701 INFO L276 IsEmpty]: Start isEmpty. Operand 2055 states and 2896 transitions. [2021-11-17 07:41:35,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-17 07:41:35,705 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:41:35,705 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:41:35,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 07:41:35,706 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)] === [2021-11-17 07:41:35,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:41:35,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1668427310, now seen corresponding path program 1 times [2021-11-17 07:41:35,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:41:35,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939236340] [2021-11-17 07:41:35,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:41:35,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:41:35,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:35,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:41:35,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:35,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:35,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:35,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:41:35,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:35,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:35,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:35,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:41:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:35,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:35,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:35,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 07:41:35,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:35,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 07:41:35,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:35,858 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-17 07:41:35,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:41:35,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939236340] [2021-11-17 07:41:35,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939236340] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:41:35,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:41:35,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:41:35,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167469355] [2021-11-17 07:41:35,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:41:35,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:41:35,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:41:35,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:41:35,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:41:35,862 INFO L87 Difference]: Start difference. First operand 2055 states and 2896 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-17 07:41:38,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:41:38,053 INFO L93 Difference]: Finished difference Result 3950 states and 5567 transitions. [2021-11-17 07:41:38,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:41:38,053 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 71 [2021-11-17 07:41:38,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:41:38,067 INFO L225 Difference]: With dead ends: 3950 [2021-11-17 07:41:38,067 INFO L226 Difference]: Without dead ends: 1906 [2021-11-17 07:41:38,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:41:38,083 INFO L933 BasicCegarLoop]: 1485 mSDtfsCounter, 747 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 616 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 3163 SdHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 616 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-17 07:41:38,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [928 Valid, 3163 Invalid, 1512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [616 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-17 07:41:38,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1906 states. [2021-11-17 07:41:38,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1906 to 1829. [2021-11-17 07:41:38,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1829 states, 1140 states have (on average 1.2578947368421052) internal successors, (1434), 1178 states have internal predecessors, (1434), 555 states have call successors, (555), 132 states have call predecessors, (555), 131 states have return successors, (552), 548 states have call predecessors, (552), 552 states have call successors, (552) [2021-11-17 07:41:38,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 2541 transitions. [2021-11-17 07:41:38,193 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 2541 transitions. Word has length 71 [2021-11-17 07:41:38,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:41:38,194 INFO L470 AbstractCegarLoop]: Abstraction has 1829 states and 2541 transitions. [2021-11-17 07:41:38,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-17 07:41:38,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 2541 transitions. [2021-11-17 07:41:38,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-17 07:41:38,202 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:41:38,202 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:41:38,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 07:41:38,203 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)] === [2021-11-17 07:41:38,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:41:38,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1262481058, now seen corresponding path program 1 times [2021-11-17 07:41:38,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:41:38,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112386018] [2021-11-17 07:41:38,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:41:38,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:41:38,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:38,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:41:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:38,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:38,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:38,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:41:38,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:38,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:38,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:41:38,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:38,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:38,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:38,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 07:41:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:38,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 07:41:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:38,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 07:41:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:38,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 07:41:38,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:38,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-17 07:41:38,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:38,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:38,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:38,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-17 07:41:38,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:38,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-17 07:41:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:38,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 07:41:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:38,406 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-17 07:41:38,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:41:38,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112386018] [2021-11-17 07:41:38,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112386018] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:41:38,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:41:38,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:41:38,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285256009] [2021-11-17 07:41:38,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:41:38,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:41:38,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:41:38,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:41:38,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:41:38,409 INFO L87 Difference]: Start difference. First operand 1829 states and 2541 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2021-11-17 07:41:41,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:41:41,331 INFO L93 Difference]: Finished difference Result 4767 states and 6663 transitions. [2021-11-17 07:41:41,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:41:41,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 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 109 [2021-11-17 07:41:41,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:41:41,353 INFO L225 Difference]: With dead ends: 4767 [2021-11-17 07:41:41,353 INFO L226 Difference]: Without dead ends: 3303 [2021-11-17 07:41:41,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:41:41,365 INFO L933 BasicCegarLoop]: 2014 mSDtfsCounter, 1424 mSDsluCounter, 1956 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 996 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1759 SdHoareTripleChecker+Valid, 3970 SdHoareTripleChecker+Invalid, 2078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 996 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-17 07:41:41,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1759 Valid, 3970 Invalid, 2078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [996 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-17 07:41:41,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3303 states. [2021-11-17 07:41:41,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3303 to 3181. [2021-11-17 07:41:41,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3181 states, 1966 states have (on average 1.2563580874872837) internal successors, (2470), 2025 states have internal predecessors, (2470), 984 states have call successors, (984), 229 states have call predecessors, (984), 228 states have return successors, (981), 976 states have call predecessors, (981), 981 states have call successors, (981) [2021-11-17 07:41:41,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3181 states to 3181 states and 4435 transitions. [2021-11-17 07:41:41,510 INFO L78 Accepts]: Start accepts. Automaton has 3181 states and 4435 transitions. Word has length 109 [2021-11-17 07:41:41,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:41:41,514 INFO L470 AbstractCegarLoop]: Abstraction has 3181 states and 4435 transitions. [2021-11-17 07:41:41,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2021-11-17 07:41:41,515 INFO L276 IsEmpty]: Start isEmpty. Operand 3181 states and 4435 transitions. [2021-11-17 07:41:41,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-17 07:41:41,519 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:41:41,519 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:41:41,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 07:41:41,520 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)] === [2021-11-17 07:41:41,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:41:41,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1685182884, now seen corresponding path program 1 times [2021-11-17 07:41:41,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:41:41,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441392577] [2021-11-17 07:41:41,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:41:41,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:41:41,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:41,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:41:41,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:41,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:41,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:41,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:41:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:41,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:41,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:41:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:41,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:41,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:41,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 07:41:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:41,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 07:41:41,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:41,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 07:41:41,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:41,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 07:41:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:41,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-17 07:41:41,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:41,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:41,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:41,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-17 07:41:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:41,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-17 07:41:41,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:41,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 07:41:41,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:41,846 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-11-17 07:41:41,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:41:41,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441392577] [2021-11-17 07:41:41,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441392577] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:41:41,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:41:41,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:41:41,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116143091] [2021-11-17 07:41:41,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:41:41,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:41:41,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:41:41,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:41:41,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:41:41,853 INFO L87 Difference]: Start difference. First operand 3181 states and 4435 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-17 07:41:44,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:41:44,021 INFO L93 Difference]: Finished difference Result 3291 states and 4606 transitions. [2021-11-17 07:41:44,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:41:44,021 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2021-11-17 07:41:44,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:41:44,044 INFO L225 Difference]: With dead ends: 3291 [2021-11-17 07:41:44,045 INFO L226 Difference]: Without dead ends: 3289 [2021-11-17 07:41:44,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:41:44,050 INFO L933 BasicCegarLoop]: 1379 mSDtfsCounter, 1295 mSDsluCounter, 2916 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 735 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 4295 SdHoareTripleChecker+Invalid, 1784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 735 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-17 07:41:44,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1514 Valid, 4295 Invalid, 1784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [735 Valid, 1049 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-17 07:41:44,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3289 states. [2021-11-17 07:41:44,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3289 to 3185. [2021-11-17 07:41:44,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3185 states, 1969 states have (on average 1.25596749619096) internal successors, (2473), 2028 states have internal predecessors, (2473), 984 states have call successors, (984), 230 states have call predecessors, (984), 229 states have return successors, (981), 976 states have call predecessors, (981), 981 states have call successors, (981) [2021-11-17 07:41:44,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3185 states to 3185 states and 4438 transitions. [2021-11-17 07:41:44,227 INFO L78 Accepts]: Start accepts. Automaton has 3185 states and 4438 transitions. Word has length 109 [2021-11-17 07:41:44,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:41:44,228 INFO L470 AbstractCegarLoop]: Abstraction has 3185 states and 4438 transitions. [2021-11-17 07:41:44,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-17 07:41:44,229 INFO L276 IsEmpty]: Start isEmpty. Operand 3185 states and 4438 transitions. [2021-11-17 07:41:44,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-17 07:41:44,232 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:41:44,232 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:41:44,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 07:41:44,232 INFO L402 AbstractCegarLoop]: === Iteration 5 === 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)] === [2021-11-17 07:41:44,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:41:44,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1846967406, now seen corresponding path program 1 times [2021-11-17 07:41:44,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:41:44,233 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464276803] [2021-11-17 07:41:44,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:41:44,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:41:44,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:44,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:41:44,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:44,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:44,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:44,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:41:44,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:44,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:44,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:44,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:41:44,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:44,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:44,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:44,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 07:41:44,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:44,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 07:41:44,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:44,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 07:41:44,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:44,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:44,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:44,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 07:41:44,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:44,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:44,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:44,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-17 07:41:44,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:44,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:44,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:44,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 07:41:44,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:44,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:44,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:44,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 07:41:44,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:44,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:44,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 07:41:44,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:44,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:44,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:44,477 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-17 07:41:44,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:41:44,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464276803] [2021-11-17 07:41:44,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464276803] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:41:44,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:41:44,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:41:44,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592313106] [2021-11-17 07:41:44,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:41:44,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:41:44,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:41:44,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:41:44,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:41:44,480 INFO L87 Difference]: Start difference. First operand 3185 states and 4438 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2021-11-17 07:41:47,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:41:47,493 INFO L93 Difference]: Finished difference Result 9100 states and 12700 transitions. [2021-11-17 07:41:47,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:41:47,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 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 124 [2021-11-17 07:41:47,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:41:47,530 INFO L225 Difference]: With dead ends: 9100 [2021-11-17 07:41:47,530 INFO L226 Difference]: Without dead ends: 5926 [2021-11-17 07:41:47,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:41:47,544 INFO L933 BasicCegarLoop]: 1750 mSDtfsCounter, 1456 mSDsluCounter, 1794 mSDsCounter, 0 mSdLazyCounter, 1080 mSolverCounterSat, 1041 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1779 SdHoareTripleChecker+Valid, 3544 SdHoareTripleChecker+Invalid, 2121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1041 IncrementalHoareTripleChecker+Valid, 1080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-17 07:41:47,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1779 Valid, 3544 Invalid, 2121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1041 Valid, 1080 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-17 07:41:47,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5926 states. [2021-11-17 07:41:47,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5926 to 5691. [2021-11-17 07:41:47,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5691 states, 3503 states have (on average 1.243791036254639) internal successors, (4357), 3597 states have internal predecessors, (4357), 1767 states have call successors, (1767), 419 states have call predecessors, (1767), 418 states have return successors, (1776), 1754 states have call predecessors, (1776), 1764 states have call successors, (1776) [2021-11-17 07:41:47,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5691 states to 5691 states and 7900 transitions. [2021-11-17 07:41:47,808 INFO L78 Accepts]: Start accepts. Automaton has 5691 states and 7900 transitions. Word has length 124 [2021-11-17 07:41:47,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:41:47,809 INFO L470 AbstractCegarLoop]: Abstraction has 5691 states and 7900 transitions. [2021-11-17 07:41:47,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2021-11-17 07:41:47,810 INFO L276 IsEmpty]: Start isEmpty. Operand 5691 states and 7900 transitions. [2021-11-17 07:41:47,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-17 07:41:47,812 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:41:47,812 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2021-11-17 07:41:47,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 07:41:47,813 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)] === [2021-11-17 07:41:47,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:41:47,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1875449172, now seen corresponding path program 1 times [2021-11-17 07:41:47,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:41:47,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313857687] [2021-11-17 07:41:47,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:41:47,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:41:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:48,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:41:48,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:48,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:48,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:48,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:41:48,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:48,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:48,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:48,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:41:48,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:48,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:48,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 07:41:48,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:48,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 07:41:48,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:48,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 07:41:48,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:48,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 07:41:48,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:48,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-17 07:41:48,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:48,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:48,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-17 07:41:48,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:48,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-17 07:41:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:48,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 07:41:48,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:48,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-17 07:41:48,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:48,112 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-11-17 07:41:48,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:41:48,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313857687] [2021-11-17 07:41:48,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313857687] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:41:48,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:41:48,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:41:48,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859582484] [2021-11-17 07:41:48,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:41:48,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:41:48,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:41:48,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:41:48,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:41:48,115 INFO L87 Difference]: Start difference. First operand 5691 states and 7900 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-17 07:41:50,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:41:50,005 INFO L93 Difference]: Finished difference Result 5897 states and 8221 transitions. [2021-11-17 07:41:50,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:41:50,006 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 114 [2021-11-17 07:41:50,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:41:50,038 INFO L225 Difference]: With dead ends: 5897 [2021-11-17 07:41:50,038 INFO L226 Difference]: Without dead ends: 5895 [2021-11-17 07:41:50,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:41:50,044 INFO L933 BasicCegarLoop]: 1388 mSDtfsCounter, 1280 mSDsluCounter, 2927 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 734 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 4315 SdHoareTripleChecker+Invalid, 1783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 734 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-17 07:41:50,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1500 Valid, 4315 Invalid, 1783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [734 Valid, 1049 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-17 07:41:50,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5895 states. [2021-11-17 07:41:50,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5895 to 5695. [2021-11-17 07:41:50,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5695 states, 3506 states have (on average 1.2435824301197946) internal successors, (4360), 3600 states have internal predecessors, (4360), 1767 states have call successors, (1767), 420 states have call predecessors, (1767), 419 states have return successors, (1776), 1754 states have call predecessors, (1776), 1764 states have call successors, (1776) [2021-11-17 07:41:50,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5695 states to 5695 states and 7903 transitions. [2021-11-17 07:41:50,339 INFO L78 Accepts]: Start accepts. Automaton has 5695 states and 7903 transitions. Word has length 114 [2021-11-17 07:41:50,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:41:50,340 INFO L470 AbstractCegarLoop]: Abstraction has 5695 states and 7903 transitions. [2021-11-17 07:41:50,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-17 07:41:50,340 INFO L276 IsEmpty]: Start isEmpty. Operand 5695 states and 7903 transitions. [2021-11-17 07:41:50,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-17 07:41:50,343 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:41:50,343 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:41:50,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 07:41:50,344 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)] === [2021-11-17 07:41:50,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:41:50,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1120878748, now seen corresponding path program 1 times [2021-11-17 07:41:50,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:41:50,345 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42897815] [2021-11-17 07:41:50,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:41:50,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:41:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:50,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:41:50,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:50,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:50,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:41:50,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:50,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:50,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:50,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:41:50,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:50,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:50,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:50,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 07:41:50,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:50,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 07:41:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:50,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 07:41:50,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:50,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 07:41:50,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:50,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-17 07:41:50,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:50,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:50,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:50,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-17 07:41:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:50,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-17 07:41:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:50,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 07:41:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:50,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-17 07:41:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:50,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 07:41:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:50,552 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-17 07:41:50,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:41:50,553 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42897815] [2021-11-17 07:41:50,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42897815] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:41:50,553 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:41:50,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:41:50,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354421975] [2021-11-17 07:41:50,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:41:50,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:41:50,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:41:50,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:41:50,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:41:50,555 INFO L87 Difference]: Start difference. First operand 5695 states and 7903 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-17 07:41:52,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:41:52,527 INFO L93 Difference]: Finished difference Result 5901 states and 8224 transitions. [2021-11-17 07:41:52,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:41:52,528 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 119 [2021-11-17 07:41:52,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:41:52,562 INFO L225 Difference]: With dead ends: 5901 [2021-11-17 07:41:52,562 INFO L226 Difference]: Without dead ends: 5899 [2021-11-17 07:41:52,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:41:52,568 INFO L933 BasicCegarLoop]: 1377 mSDtfsCounter, 1290 mSDsluCounter, 2903 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 730 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 4280 SdHoareTripleChecker+Invalid, 1782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 730 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-17 07:41:52,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1512 Valid, 4280 Invalid, 1782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [730 Valid, 1052 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-17 07:41:52,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5899 states. [2021-11-17 07:41:52,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5899 to 5699. [2021-11-17 07:41:52,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5699 states, 3509 states have (on average 1.243374180678256) internal successors, (4363), 3603 states have internal predecessors, (4363), 1767 states have call successors, (1767), 421 states have call predecessors, (1767), 420 states have return successors, (1776), 1754 states have call predecessors, (1776), 1764 states have call successors, (1776) [2021-11-17 07:41:52,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5699 states to 5699 states and 7906 transitions. [2021-11-17 07:41:52,883 INFO L78 Accepts]: Start accepts. Automaton has 5699 states and 7906 transitions. Word has length 119 [2021-11-17 07:41:52,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:41:52,884 INFO L470 AbstractCegarLoop]: Abstraction has 5699 states and 7906 transitions. [2021-11-17 07:41:52,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-17 07:41:52,884 INFO L276 IsEmpty]: Start isEmpty. Operand 5699 states and 7906 transitions. [2021-11-17 07:41:52,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-17 07:41:52,887 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:41:52,887 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:41:52,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 07:41:52,888 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:41:52,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:41:52,888 INFO L85 PathProgramCache]: Analyzing trace with hash -345114860, now seen corresponding path program 1 times [2021-11-17 07:41:52,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:41:52,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016963258] [2021-11-17 07:41:52,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:41:52,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:41:52,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:52,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:41:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:52,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:53,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:41:53,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:53,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:53,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:53,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:41:53,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:53,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:53,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 07:41:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:53,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 07:41:53,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:53,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 07:41:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:53,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 07:41:53,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:53,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-17 07:41:53,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:53,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:53,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-17 07:41:53,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:53,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-17 07:41:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:53,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 07:41:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:53,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-17 07:41:53,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:53,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 07:41:53,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:53,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 07:41:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:53,101 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-11-17 07:41:53,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:41:53,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016963258] [2021-11-17 07:41:53,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016963258] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:41:53,102 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:41:53,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:41:53,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92862957] [2021-11-17 07:41:53,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:41:53,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:41:53,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:41:53,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:41:53,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:41:53,104 INFO L87 Difference]: Start difference. First operand 5699 states and 7906 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-17 07:41:55,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:41:55,078 INFO L93 Difference]: Finished difference Result 6150 states and 8435 transitions. [2021-11-17 07:41:55,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 07:41:55,078 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 124 [2021-11-17 07:41:55,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:41:55,101 INFO L225 Difference]: With dead ends: 6150 [2021-11-17 07:41:55,102 INFO L226 Difference]: Without dead ends: 6148 [2021-11-17 07:41:55,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:41:55,106 INFO L933 BasicCegarLoop]: 1377 mSDtfsCounter, 1286 mSDsluCounter, 2937 mSDsCounter, 0 mSdLazyCounter, 1088 mSolverCounterSat, 725 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 4314 SdHoareTripleChecker+Invalid, 1813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 725 IncrementalHoareTripleChecker+Valid, 1088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-17 07:41:55,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1500 Valid, 4314 Invalid, 1813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [725 Valid, 1088 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-17 07:41:55,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6148 states. [2021-11-17 07:41:55,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6148 to 5946. [2021-11-17 07:41:55,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5946 states, 3674 states have (on average 1.2348938486663037) internal successors, (4537), 3768 states have internal predecessors, (4537), 1785 states have call successors, (1785), 485 states have call predecessors, (1785), 484 states have return successors, (1794), 1772 states have call predecessors, (1794), 1782 states have call successors, (1794) [2021-11-17 07:41:55,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5946 states to 5946 states and 8116 transitions. [2021-11-17 07:41:55,438 INFO L78 Accepts]: Start accepts. Automaton has 5946 states and 8116 transitions. Word has length 124 [2021-11-17 07:41:55,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:41:55,439 INFO L470 AbstractCegarLoop]: Abstraction has 5946 states and 8116 transitions. [2021-11-17 07:41:55,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-17 07:41:55,439 INFO L276 IsEmpty]: Start isEmpty. Operand 5946 states and 8116 transitions. [2021-11-17 07:41:55,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-17 07:41:55,443 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:41:55,444 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:41:55,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 07:41:55,444 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:41:55,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:41:55,445 INFO L85 PathProgramCache]: Analyzing trace with hash 575481124, now seen corresponding path program 1 times [2021-11-17 07:41:55,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:41:55,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626242151] [2021-11-17 07:41:55,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:41:55,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:41:55,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:55,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:41:55,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:55,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:55,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:55,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:41:55,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:55,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:55,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:55,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:41:55,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:55,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:55,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:55,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 07:41:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:55,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 07:41:55,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:55,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 07:41:55,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:55,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 07:41:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:55,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-17 07:41:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:55,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:55,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:55,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-17 07:41:55,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:55,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-17 07:41:55,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:55,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 07:41:55,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:55,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-17 07:41:55,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:55,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 07:41:55,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:55,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 07:41:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:55,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 07:41:55,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:55,667 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-11-17 07:41:55,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:41:55,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626242151] [2021-11-17 07:41:55,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626242151] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:41:55,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:41:55,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:41:55,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594597169] [2021-11-17 07:41:55,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:41:55,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:41:55,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:41:55,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:41:55,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:41:55,671 INFO L87 Difference]: Start difference. First operand 5946 states and 8116 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-17 07:41:57,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:41:57,559 INFO L93 Difference]: Finished difference Result 6152 states and 8437 transitions. [2021-11-17 07:41:57,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:41:57,559 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 129 [2021-11-17 07:41:57,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:41:57,580 INFO L225 Difference]: With dead ends: 6152 [2021-11-17 07:41:57,581 INFO L226 Difference]: Without dead ends: 6150 [2021-11-17 07:41:57,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:41:57,586 INFO L933 BasicCegarLoop]: 1389 mSDtfsCounter, 1280 mSDsluCounter, 2929 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 728 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 4318 SdHoareTripleChecker+Invalid, 1780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 728 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-17 07:41:57,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1500 Valid, 4318 Invalid, 1780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [728 Valid, 1052 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-17 07:41:57,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6150 states. [2021-11-17 07:41:57,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6150 to 5950. [2021-11-17 07:41:57,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5950 states, 3677 states have (on average 1.234702202882785) internal successors, (4540), 3771 states have internal predecessors, (4540), 1785 states have call successors, (1785), 486 states have call predecessors, (1785), 485 states have return successors, (1794), 1772 states have call predecessors, (1794), 1782 states have call successors, (1794) [2021-11-17 07:41:57,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5950 states to 5950 states and 8119 transitions. [2021-11-17 07:41:57,832 INFO L78 Accepts]: Start accepts. Automaton has 5950 states and 8119 transitions. Word has length 129 [2021-11-17 07:41:57,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:41:57,833 INFO L470 AbstractCegarLoop]: Abstraction has 5950 states and 8119 transitions. [2021-11-17 07:41:57,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-17 07:41:57,833 INFO L276 IsEmpty]: Start isEmpty. Operand 5950 states and 8119 transitions. [2021-11-17 07:41:57,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-17 07:41:57,836 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:41:57,837 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:41:57,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 07:41:57,837 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:41:57,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:41:57,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1365993508, now seen corresponding path program 1 times [2021-11-17 07:41:57,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:41:57,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51553140] [2021-11-17 07:41:57,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:41:57,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:41:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:57,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:41:57,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:57,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:57,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:57,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:41:57,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:57,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:57,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:57,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:41:57,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:57,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:57,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:57,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 07:41:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:57,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-17 07:41:57,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:57,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-17 07:41:57,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:57,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:57,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 07:41:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:57,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 07:41:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:57,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:57,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 07:41:57,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:57,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 07:41:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:57,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:57,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:57,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:41:57,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:57,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:57,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:41:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:57,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:57,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:57,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-17 07:41:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:58,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:58,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 07:41:58,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:58,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:41:58,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:41:58,033 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-17 07:41:58,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:41:58,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51553140] [2021-11-17 07:41:58,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51553140] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:41:58,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:41:58,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:41:58,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995402889] [2021-11-17 07:41:58,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:41:58,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:41:58,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:41:58,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:41:58,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:41:58,035 INFO L87 Difference]: Start difference. First operand 5950 states and 8119 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, (23), 3 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-17 07:42:00,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:42:00,524 INFO L93 Difference]: Finished difference Result 15732 states and 21528 transitions. [2021-11-17 07:42:00,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:42:00,525 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, (23), 3 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 140 [2021-11-17 07:42:00,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:42:00,565 INFO L225 Difference]: With dead ends: 15732 [2021-11-17 07:42:00,566 INFO L226 Difference]: Without dead ends: 9793 [2021-11-17 07:42:00,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:42:00,590 INFO L933 BasicCegarLoop]: 1634 mSDtfsCounter, 1288 mSDsluCounter, 1745 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 1030 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1591 SdHoareTripleChecker+Valid, 3379 SdHoareTripleChecker+Invalid, 2079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1030 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-17 07:42:00,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1591 Valid, 3379 Invalid, 2079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1030 Valid, 1049 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-17 07:42:00,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9793 states. [2021-11-17 07:42:01,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9793 to 9418. [2021-11-17 07:42:01,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9418 states, 5717 states have (on average 1.207801294385167) internal successors, (6905), 5823 states have internal predecessors, (6905), 2944 states have call successors, (2944), 759 states have call predecessors, (2944), 754 states have return successors, (2981), 2915 states have call predecessors, (2981), 2941 states have call successors, (2981) [2021-11-17 07:42:01,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9418 states to 9418 states and 12830 transitions. [2021-11-17 07:42:01,086 INFO L78 Accepts]: Start accepts. Automaton has 9418 states and 12830 transitions. Word has length 140 [2021-11-17 07:42:01,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:42:01,087 INFO L470 AbstractCegarLoop]: Abstraction has 9418 states and 12830 transitions. [2021-11-17 07:42:01,087 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, (23), 3 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-17 07:42:01,087 INFO L276 IsEmpty]: Start isEmpty. Operand 9418 states and 12830 transitions. [2021-11-17 07:42:01,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-17 07:42:01,090 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:42:01,090 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:42:01,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 07:42:01,091 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:42:01,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:42:01,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1259332667, now seen corresponding path program 1 times [2021-11-17 07:42:01,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:42:01,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748198835] [2021-11-17 07:42:01,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:42:01,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:42:01,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:01,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:42:01,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:01,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:01,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:01,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:42:01,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:01,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:01,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:01,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:42:01,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:01,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:01,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 07:42:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:01,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 07:42:01,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:01,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 07:42:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:01,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 07:42:01,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:01,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-17 07:42:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:01,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:01,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:01,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-17 07:42:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:01,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-17 07:42:01,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:01,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 07:42:01,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:01,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 07:42:01,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:01,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 07:42:01,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:01,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 07:42:01,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:01,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 07:42:01,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:01,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-11-17 07:42:01,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:01,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 07:42:01,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:01,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 07:42:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:01,334 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2021-11-17 07:42:01,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:42:01,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748198835] [2021-11-17 07:42:01,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748198835] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:42:01,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:42:01,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:42:01,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755067566] [2021-11-17 07:42:01,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:42:01,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:42:01,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:42:01,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:42:01,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:42:01,338 INFO L87 Difference]: Start difference. First operand 9418 states and 12830 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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) [2021-11-17 07:42:03,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:42:03,504 INFO L93 Difference]: Finished difference Result 10578 states and 14269 transitions. [2021-11-17 07:42:03,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 07:42:03,505 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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 152 [2021-11-17 07:42:03,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:42:03,549 INFO L225 Difference]: With dead ends: 10578 [2021-11-17 07:42:03,549 INFO L226 Difference]: Without dead ends: 10576 [2021-11-17 07:42:03,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:42:03,557 INFO L933 BasicCegarLoop]: 1414 mSDtfsCounter, 1207 mSDsluCounter, 3090 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 704 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1452 SdHoareTripleChecker+Valid, 4504 SdHoareTripleChecker+Invalid, 1976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 704 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-17 07:42:03,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1452 Valid, 4504 Invalid, 1976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [704 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-17 07:42:03,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10576 states. [2021-11-17 07:42:03,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10576 to 10254. [2021-11-17 07:42:03,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10254 states, 6158 states have (on average 1.1929197791490744) internal successors, (7346), 6264 states have internal predecessors, (7346), 3192 states have call successors, (3192), 906 states have call predecessors, (3192), 901 states have return successors, (3229), 3163 states have call predecessors, (3229), 3189 states have call successors, (3229) [2021-11-17 07:42:04,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10254 states to 10254 states and 13767 transitions. [2021-11-17 07:42:04,008 INFO L78 Accepts]: Start accepts. Automaton has 10254 states and 13767 transitions. Word has length 152 [2021-11-17 07:42:04,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:42:04,010 INFO L470 AbstractCegarLoop]: Abstraction has 10254 states and 13767 transitions. [2021-11-17 07:42:04,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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) [2021-11-17 07:42:04,011 INFO L276 IsEmpty]: Start isEmpty. Operand 10254 states and 13767 transitions. [2021-11-17 07:42:04,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-17 07:42:04,013 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:42:04,013 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:42:04,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 07:42:04,013 INFO L402 AbstractCegarLoop]: === Iteration 12 === 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)] === [2021-11-17 07:42:04,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:42:04,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1996373274, now seen corresponding path program 1 times [2021-11-17 07:42:04,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:42:04,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111180318] [2021-11-17 07:42:04,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:42:04,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:42:04,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:04,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:42:04,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:04,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:04,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:04,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:42:04,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:04,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:04,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:42:04,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:04,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:04,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:04,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 07:42:04,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:04,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 07:42:04,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:04,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 07:42:04,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:04,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 07:42:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:04,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 07:42:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:04,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 07:42:04,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:04,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:04,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:42:04,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:04,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 07:42:04,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:04,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 07:42:04,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:04,238 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-17 07:42:04,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:42:04,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111180318] [2021-11-17 07:42:04,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111180318] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:42:04,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:42:04,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:42:04,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304792539] [2021-11-17 07:42:04,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:42:04,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:42:04,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:42:04,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:42:04,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:42:04,240 INFO L87 Difference]: Start difference. First operand 10254 states and 13767 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 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) [2021-11-17 07:42:06,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:42:06,265 INFO L93 Difference]: Finished difference Result 22949 states and 30823 transitions. [2021-11-17 07:42:06,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:42:06,267 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 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 131 [2021-11-17 07:42:06,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:42:06,319 INFO L225 Difference]: With dead ends: 22949 [2021-11-17 07:42:06,320 INFO L226 Difference]: Without dead ends: 12744 [2021-11-17 07:42:06,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:42:06,356 INFO L933 BasicCegarLoop]: 1876 mSDtfsCounter, 675 mSDsluCounter, 1898 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 521 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 3774 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 521 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-17 07:42:06,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [858 Valid, 3774 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [521 Valid, 900 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-17 07:42:06,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12744 states. [2021-11-17 07:42:06,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12744 to 12344. [2021-11-17 07:42:06,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12344 states, 7586 states have (on average 1.200369100975481) internal successors, (9106), 7744 states have internal predecessors, (9106), 3634 states have call successors, (3634), 1126 states have call predecessors, (3634), 1121 states have return successors, (3671), 3593 states have call predecessors, (3671), 3631 states have call successors, (3671) [2021-11-17 07:42:06,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12344 states to 12344 states and 16411 transitions. [2021-11-17 07:42:06,999 INFO L78 Accepts]: Start accepts. Automaton has 12344 states and 16411 transitions. Word has length 131 [2021-11-17 07:42:06,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:42:06,999 INFO L470 AbstractCegarLoop]: Abstraction has 12344 states and 16411 transitions. [2021-11-17 07:42:07,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 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) [2021-11-17 07:42:07,000 INFO L276 IsEmpty]: Start isEmpty. Operand 12344 states and 16411 transitions. [2021-11-17 07:42:07,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-17 07:42:07,002 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:42:07,002 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:42:07,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-17 07:42:07,002 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:42:07,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:42:07,003 INFO L85 PathProgramCache]: Analyzing trace with hash -588838172, now seen corresponding path program 1 times [2021-11-17 07:42:07,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:42:07,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664201847] [2021-11-17 07:42:07,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:42:07,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:42:07,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:07,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:42:07,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:07,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:07,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:42:07,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:07,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:07,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:07,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:42:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:07,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:07,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:07,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 07:42:07,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:07,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 07:42:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:07,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 07:42:07,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:07,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 07:42:07,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:07,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-17 07:42:07,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:07,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:07,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-17 07:42:07,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:07,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-17 07:42:07,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:07,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 07:42:07,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:07,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-17 07:42:07,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:07,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 07:42:07,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:07,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 07:42:07,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:07,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 07:42:07,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:07,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 07:42:07,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:07,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 07:42:07,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:07,228 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2021-11-17 07:42:07,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:42:07,229 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664201847] [2021-11-17 07:42:07,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664201847] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:42:07,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:42:07,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:42:07,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535926542] [2021-11-17 07:42:07,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:42:07,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:42:07,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:42:07,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:42:07,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:42:07,231 INFO L87 Difference]: Start difference. First operand 12344 states and 16411 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 07:42:09,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:42:09,280 INFO L93 Difference]: Finished difference Result 12702 states and 16967 transitions. [2021-11-17 07:42:09,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:42:09,280 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 139 [2021-11-17 07:42:09,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:42:09,406 INFO L225 Difference]: With dead ends: 12702 [2021-11-17 07:42:09,406 INFO L226 Difference]: Without dead ends: 12698 [2021-11-17 07:42:09,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:42:09,413 INFO L933 BasicCegarLoop]: 1384 mSDtfsCounter, 1281 mSDsluCounter, 2916 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 729 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 4300 SdHoareTripleChecker+Invalid, 1778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 729 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-17 07:42:09,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1504 Valid, 4300 Invalid, 1778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [729 Valid, 1049 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-17 07:42:09,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12698 states. [2021-11-17 07:42:09,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12698 to 12346. [2021-11-17 07:42:09,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12346 states, 7588 states have (on average 1.2001845018450183) internal successors, (9107), 7745 states have internal predecessors, (9107), 3634 states have call successors, (3634), 1127 states have call predecessors, (3634), 1121 states have return successors, (3671), 3593 states have call predecessors, (3671), 3631 states have call successors, (3671) [2021-11-17 07:42:09,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12346 states to 12346 states and 16412 transitions. [2021-11-17 07:42:09,943 INFO L78 Accepts]: Start accepts. Automaton has 12346 states and 16412 transitions. Word has length 139 [2021-11-17 07:42:09,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:42:09,944 INFO L470 AbstractCegarLoop]: Abstraction has 12346 states and 16412 transitions. [2021-11-17 07:42:09,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 07:42:09,944 INFO L276 IsEmpty]: Start isEmpty. Operand 12346 states and 16412 transitions. [2021-11-17 07:42:09,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-17 07:42:09,946 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:42:09,947 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:42:09,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-17 07:42:09,947 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:42:09,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:42:09,948 INFO L85 PathProgramCache]: Analyzing trace with hash 63912596, now seen corresponding path program 1 times [2021-11-17 07:42:09,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:42:09,948 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445837530] [2021-11-17 07:42:09,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:42:09,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:42:09,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:10,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:42:10,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:10,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:10,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:42:10,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:10,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:10,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:10,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:42:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:10,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:10,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:10,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 07:42:10,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:10,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 07:42:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:10,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 07:42:10,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:10,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 07:42:10,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:10,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-17 07:42:10,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:10,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:10,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:10,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-17 07:42:10,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:10,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-17 07:42:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:10,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 07:42:10,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:10,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-17 07:42:10,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:10,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 07:42:10,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:10,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 07:42:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:10,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 07:42:10,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:10,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 07:42:10,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:10,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 07:42:10,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:10,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 07:42:10,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:10,148 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-17 07:42:10,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:42:10,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445837530] [2021-11-17 07:42:10,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445837530] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:42:10,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:42:10,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:42:10,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723564647] [2021-11-17 07:42:10,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:42:10,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:42:10,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:42:10,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:42:10,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:42:10,151 INFO L87 Difference]: Start difference. First operand 12346 states and 16412 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 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) [2021-11-17 07:42:12,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:42:12,216 INFO L93 Difference]: Finished difference Result 12698 states and 16963 transitions. [2021-11-17 07:42:12,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:42:12,217 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 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 144 [2021-11-17 07:42:12,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:42:12,261 INFO L225 Difference]: With dead ends: 12698 [2021-11-17 07:42:12,261 INFO L226 Difference]: Without dead ends: 12479 [2021-11-17 07:42:12,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:42:12,269 INFO L933 BasicCegarLoop]: 1373 mSDtfsCounter, 1284 mSDsluCounter, 2900 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 725 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 4273 SdHoareTripleChecker+Invalid, 1772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 725 IncrementalHoareTripleChecker+Valid, 1047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-17 07:42:12,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1507 Valid, 4273 Invalid, 1772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [725 Valid, 1047 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-17 07:42:12,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12479 states. [2021-11-17 07:42:12,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12479 to 12127. [2021-11-17 07:42:12,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12127 states, 7450 states have (on average 1.1973154362416107) internal successors, (8920), 7583 states have internal predecessors, (8920), 3567 states have call successors, (3567), 1112 states have call predecessors, (3567), 1108 states have return successors, (3607), 3551 states have call predecessors, (3607), 3567 states have call successors, (3607) [2021-11-17 07:42:12,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12127 states to 12127 states and 16094 transitions. [2021-11-17 07:42:12,882 INFO L78 Accepts]: Start accepts. Automaton has 12127 states and 16094 transitions. Word has length 144 [2021-11-17 07:42:12,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:42:12,883 INFO L470 AbstractCegarLoop]: Abstraction has 12127 states and 16094 transitions. [2021-11-17 07:42:12,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 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) [2021-11-17 07:42:12,884 INFO L276 IsEmpty]: Start isEmpty. Operand 12127 states and 16094 transitions. [2021-11-17 07:42:12,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-17 07:42:12,887 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:42:12,887 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:42:12,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-17 07:42:12,888 INFO L402 AbstractCegarLoop]: === Iteration 15 === 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)] === [2021-11-17 07:42:12,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:42:12,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1444168354, now seen corresponding path program 1 times [2021-11-17 07:42:12,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:42:12,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454422209] [2021-11-17 07:42:12,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:42:12,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:42:12,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:12,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:42:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:12,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:12,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:42:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:12,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:12,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:42:12,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:12,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:12,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:13,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 07:42:13,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:13,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 07:42:13,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:13,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 07:42:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:13,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 07:42:13,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:13,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 07:42:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:13,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 07:42:13,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:13,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:13,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:13,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:42:13,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:13,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 07:42:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:13,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 07:42:13,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:13,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:13,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:13,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 07:42:13,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:13,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 07:42:13,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:13,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:42:13,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:13,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:13,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 07:42:13,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:13,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 07:42:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:13,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-17 07:42:13,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:13,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 07:42:13,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:13,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 07:42:13,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:13,075 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-17 07:42:13,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:42:13,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454422209] [2021-11-17 07:42:13,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454422209] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:42:13,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:42:13,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:42:13,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216169479] [2021-11-17 07:42:13,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:42:13,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:42:13,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:42:13,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:42:13,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:42:13,079 INFO L87 Difference]: Start difference. First operand 12127 states and 16094 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 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) [2021-11-17 07:42:15,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:42:15,696 INFO L93 Difference]: Finished difference Result 26599 states and 35350 transitions. [2021-11-17 07:42:15,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:42:15,697 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 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 203 [2021-11-17 07:42:15,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:42:15,749 INFO L225 Difference]: With dead ends: 26599 [2021-11-17 07:42:15,749 INFO L226 Difference]: Without dead ends: 14466 [2021-11-17 07:42:15,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:42:15,782 INFO L933 BasicCegarLoop]: 1837 mSDtfsCounter, 645 mSDsluCounter, 1873 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 467 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 3710 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 467 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-17 07:42:15,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [815 Valid, 3710 Invalid, 1323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [467 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-17 07:42:15,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14466 states. [2021-11-17 07:42:16,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14466 to 14074. [2021-11-17 07:42:16,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14074 states, 8771 states have (on average 1.2024854634591267) internal successors, (10547), 8948 states have internal predecessors, (10547), 3986 states have call successors, (3986), 1319 states have call predecessors, (3986), 1315 states have return successors, (4026), 3966 states have call predecessors, (4026), 3986 states have call successors, (4026) [2021-11-17 07:42:16,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14074 states to 14074 states and 18559 transitions. [2021-11-17 07:42:16,477 INFO L78 Accepts]: Start accepts. Automaton has 14074 states and 18559 transitions. Word has length 203 [2021-11-17 07:42:16,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:42:16,478 INFO L470 AbstractCegarLoop]: Abstraction has 14074 states and 18559 transitions. [2021-11-17 07:42:16,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 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) [2021-11-17 07:42:16,479 INFO L276 IsEmpty]: Start isEmpty. Operand 14074 states and 18559 transitions. [2021-11-17 07:42:16,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-17 07:42:16,483 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:42:16,484 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:42:16,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-17 07:42:16,484 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:42:16,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:42:16,485 INFO L85 PathProgramCache]: Analyzing trace with hash 600162852, now seen corresponding path program 1 times [2021-11-17 07:42:16,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:42:16,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957651999] [2021-11-17 07:42:16,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:42:16,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:42:16,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:16,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:42:16,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:16,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:16,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:16,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:42:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:16,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:16,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:16,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:42:16,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:16,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:16,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:16,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 07:42:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:16,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 07:42:16,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:16,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 07:42:16,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:16,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 07:42:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:16,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 07:42:16,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:16,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 07:42:16,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:16,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:16,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:16,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:42:16,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:16,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 07:42:16,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:16,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 07:42:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:16,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:16,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:16,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 07:42:16,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:16,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 07:42:16,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:16,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:42:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:16,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:16,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:16,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 07:42:16,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:16,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 07:42:16,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:16,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-17 07:42:16,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:16,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 07:42:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:16,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 07:42:16,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:16,670 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-17 07:42:16,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:42:16,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957651999] [2021-11-17 07:42:16,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957651999] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:42:16,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:42:16,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:42:16,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728073944] [2021-11-17 07:42:16,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:42:16,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:42:16,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:42:16,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:42:16,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:42:16,675 INFO L87 Difference]: Start difference. First operand 14074 states and 18559 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 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) [2021-11-17 07:42:19,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:42:19,197 INFO L93 Difference]: Finished difference Result 31477 states and 41452 transitions. [2021-11-17 07:42:19,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:42:19,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 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 203 [2021-11-17 07:42:19,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:42:19,252 INFO L225 Difference]: With dead ends: 31477 [2021-11-17 07:42:19,252 INFO L226 Difference]: Without dead ends: 17452 [2021-11-17 07:42:19,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:42:19,288 INFO L933 BasicCegarLoop]: 1918 mSDtfsCounter, 1102 mSDsluCounter, 1384 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 594 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 3302 SdHoareTripleChecker+Invalid, 1439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 594 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-17 07:42:19,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1382 Valid, 3302 Invalid, 1439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [594 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-17 07:42:19,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17452 states. [2021-11-17 07:42:19,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17452 to 17026. [2021-11-17 07:42:19,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17026 states, 10639 states have (on average 1.1982329166275025) internal successors, (12748), 10858 states have internal predecessors, (12748), 4702 states have call successors, (4702), 1689 states have call predecessors, (4702), 1683 states have return successors, (4742), 4678 states have call predecessors, (4742), 4702 states have call successors, (4742) [2021-11-17 07:42:19,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17026 states to 17026 states and 22192 transitions. [2021-11-17 07:42:19,913 INFO L78 Accepts]: Start accepts. Automaton has 17026 states and 22192 transitions. Word has length 203 [2021-11-17 07:42:19,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:42:19,914 INFO L470 AbstractCegarLoop]: Abstraction has 17026 states and 22192 transitions. [2021-11-17 07:42:19,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 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) [2021-11-17 07:42:19,915 INFO L276 IsEmpty]: Start isEmpty. Operand 17026 states and 22192 transitions. [2021-11-17 07:42:19,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-11-17 07:42:19,918 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:42:19,919 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 10, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:42:19,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-17 07:42:19,919 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:42:19,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:42:19,920 INFO L85 PathProgramCache]: Analyzing trace with hash -695497111, now seen corresponding path program 1 times [2021-11-17 07:42:19,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:42:19,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307265172] [2021-11-17 07:42:19,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:42:19,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:42:19,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:42:20,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:20,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:42:20,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:20,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:42:20,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:20,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 07:42:20,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 07:42:20,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 07:42:20,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 07:42:20,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 07:42:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 07:42:20,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:20,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:42:20,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 07:42:20,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 07:42:20,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 07:42:20,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 07:42:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:42:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 07:42:20,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 07:42:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-17 07:42:20,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 07:42:20,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 07:42:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 07:42:20,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-17 07:42:20,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:20,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:20,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-17 07:42:20,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-11-17 07:42:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2021-11-17 07:42:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:20,248 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2021-11-17 07:42:20,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:42:20,249 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307265172] [2021-11-17 07:42:20,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307265172] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:42:20,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:42:20,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 07:42:20,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234779127] [2021-11-17 07:42:20,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:42:20,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 07:42:20,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:42:20,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 07:42:20,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:42:20,251 INFO L87 Difference]: Start difference. First operand 17026 states and 22192 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-17 07:42:22,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:42:22,805 INFO L93 Difference]: Finished difference Result 36545 states and 47784 transitions. [2021-11-17 07:42:22,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:42:22,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 273 [2021-11-17 07:42:22,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:42:22,866 INFO L225 Difference]: With dead ends: 36545 [2021-11-17 07:42:22,866 INFO L226 Difference]: Without dead ends: 19582 [2021-11-17 07:42:22,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-17 07:42:22,906 INFO L933 BasicCegarLoop]: 1707 mSDtfsCounter, 885 mSDsluCounter, 1783 mSDsCounter, 0 mSdLazyCounter, 951 mSolverCounterSat, 1026 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 3490 SdHoareTripleChecker+Invalid, 1977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1026 IncrementalHoareTripleChecker+Valid, 951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-17 07:42:22,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1058 Valid, 3490 Invalid, 1977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1026 Valid, 951 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-17 07:42:22,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19582 states. [2021-11-17 07:42:23,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19582 to 19044. [2021-11-17 07:42:23,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19044 states, 12019 states have (on average 1.202096680256261) internal successors, (14448), 12282 states have internal predecessors, (14448), 5128 states have call successors, (5128), 1901 states have call predecessors, (5128), 1895 states have return successors, (5168), 5100 states have call predecessors, (5168), 5128 states have call successors, (5168) [2021-11-17 07:42:23,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19044 states to 19044 states and 24744 transitions. [2021-11-17 07:42:23,647 INFO L78 Accepts]: Start accepts. Automaton has 19044 states and 24744 transitions. Word has length 273 [2021-11-17 07:42:23,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:42:23,648 INFO L470 AbstractCegarLoop]: Abstraction has 19044 states and 24744 transitions. [2021-11-17 07:42:23,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-17 07:42:23,648 INFO L276 IsEmpty]: Start isEmpty. Operand 19044 states and 24744 transitions. [2021-11-17 07:42:23,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-11-17 07:42:23,651 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:42:23,651 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 10, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:42:23,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-17 07:42:23,652 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:42:23,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:42:23,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1539502613, now seen corresponding path program 1 times [2021-11-17 07:42:23,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:42:23,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730626227] [2021-11-17 07:42:23,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:42:23,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:42:23,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:42:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:23,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:42:23,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:23,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:42:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:23,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 07:42:23,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 07:42:23,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 07:42:23,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 07:42:23,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 07:42:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 07:42:23,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:23,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:42:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 07:42:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 07:42:23,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:23,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 07:42:23,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 07:42:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:42:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 07:42:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 07:42:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-17 07:42:23,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 07:42:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 07:42:23,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 07:42:23,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-17 07:42:23,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:23,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:23,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-17 07:42:23,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-11-17 07:42:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2021-11-17 07:42:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:23,881 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2021-11-17 07:42:23,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:42:23,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730626227] [2021-11-17 07:42:23,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730626227] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:42:23,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:42:23,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 07:42:23,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566906248] [2021-11-17 07:42:23,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:42:23,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 07:42:23,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:42:23,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 07:42:23,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:42:23,884 INFO L87 Difference]: Start difference. First operand 19044 states and 24744 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-17 07:42:26,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:42:26,663 INFO L93 Difference]: Finished difference Result 40721 states and 53080 transitions. [2021-11-17 07:42:26,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:42:26,663 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 273 [2021-11-17 07:42:26,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:42:26,744 INFO L225 Difference]: With dead ends: 40721 [2021-11-17 07:42:26,744 INFO L226 Difference]: Without dead ends: 21740 [2021-11-17 07:42:26,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-17 07:42:26,792 INFO L933 BasicCegarLoop]: 1806 mSDtfsCounter, 911 mSDsluCounter, 1856 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 983 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 3662 SdHoareTripleChecker+Invalid, 1937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 983 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-17 07:42:26,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1084 Valid, 3662 Invalid, 1937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [983 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-17 07:42:26,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21740 states. [2021-11-17 07:42:27,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21740 to 21158. [2021-11-17 07:42:27,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21158 states, 13479 states have (on average 1.2051339120112767) internal successors, (16244), 13786 states have internal predecessors, (16244), 5562 states have call successors, (5562), 2121 states have call predecessors, (5562), 2115 states have return successors, (5602), 5530 states have call predecessors, (5602), 5562 states have call successors, (5602) [2021-11-17 07:42:27,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21158 states to 21158 states and 27408 transitions. [2021-11-17 07:42:27,620 INFO L78 Accepts]: Start accepts. Automaton has 21158 states and 27408 transitions. Word has length 273 [2021-11-17 07:42:27,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:42:27,621 INFO L470 AbstractCegarLoop]: Abstraction has 21158 states and 27408 transitions. [2021-11-17 07:42:27,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-17 07:42:27,621 INFO L276 IsEmpty]: Start isEmpty. Operand 21158 states and 27408 transitions. [2021-11-17 07:42:27,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2021-11-17 07:42:27,625 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:42:27,626 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:42:27,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-17 07:42:27,626 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:42:27,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:42:27,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1090673931, now seen corresponding path program 1 times [2021-11-17 07:42:27,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:42:27,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775926292] [2021-11-17 07:42:27,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:42:27,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:42:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:42:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:27,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:42:27,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:27,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:42:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:27,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 07:42:27,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 07:42:27,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 07:42:27,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 07:42:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 07:42:27,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 07:42:27,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:42:27,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 07:42:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 07:42:27,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:27,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 07:42:27,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 07:42:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:42:27,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:27,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 07:42:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 07:42:27,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-17 07:42:27,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 07:42:27,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 07:42:27,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 07:42:27,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:27,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-17 07:42:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:27,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-17 07:42:27,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-11-17 07:42:27,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-11-17 07:42:27,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 07:42:27,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:27,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 07:42:27,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-17 07:42:27,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:27,909 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2021-11-17 07:42:27,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:42:27,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775926292] [2021-11-17 07:42:27,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775926292] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:42:27,910 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:42:27,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 07:42:27,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532900861] [2021-11-17 07:42:27,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:42:27,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 07:42:27,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:42:27,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 07:42:27,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-17 07:42:27,913 INFO L87 Difference]: Start difference. First operand 21158 states and 27408 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 4 states have internal predecessors, (126), 3 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-17 07:42:31,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:42:31,141 INFO L93 Difference]: Finished difference Result 45301 states and 58835 transitions. [2021-11-17 07:42:31,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 07:42:31,142 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 4 states have internal predecessors, (126), 3 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) Word has length 312 [2021-11-17 07:42:31,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:42:31,220 INFO L225 Difference]: With dead ends: 45301 [2021-11-17 07:42:31,220 INFO L226 Difference]: Without dead ends: 24206 [2021-11-17 07:42:31,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:42:31,274 INFO L933 BasicCegarLoop]: 1782 mSDtfsCounter, 970 mSDsluCounter, 4895 mSDsCounter, 0 mSdLazyCounter, 1884 mSolverCounterSat, 1084 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 6677 SdHoareTripleChecker+Invalid, 2968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1084 IncrementalHoareTripleChecker+Valid, 1884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-17 07:42:31,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1140 Valid, 6677 Invalid, 2968 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1084 Valid, 1884 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-17 07:42:31,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24206 states. [2021-11-17 07:42:32,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24206 to 23564. [2021-11-17 07:42:32,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23564 states, 15021 states have (on average 1.2064443112975167) internal successors, (18122), 15372 states have internal predecessors, (18122), 6148 states have call successors, (6148), 2391 states have call predecessors, (6148), 2393 states have return successors, (6196), 6120 states have call predecessors, (6196), 6148 states have call successors, (6196) [2021-11-17 07:42:32,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23564 states to 23564 states and 30466 transitions. [2021-11-17 07:42:32,211 INFO L78 Accepts]: Start accepts. Automaton has 23564 states and 30466 transitions. Word has length 312 [2021-11-17 07:42:32,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:42:32,212 INFO L470 AbstractCegarLoop]: Abstraction has 23564 states and 30466 transitions. [2021-11-17 07:42:32,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 4 states have internal predecessors, (126), 3 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-17 07:42:32,213 INFO L276 IsEmpty]: Start isEmpty. Operand 23564 states and 30466 transitions. [2021-11-17 07:42:32,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2021-11-17 07:42:32,218 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:42:32,218 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:42:32,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-17 07:42:32,219 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:42:32,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:42:32,219 INFO L85 PathProgramCache]: Analyzing trace with hash -168921492, now seen corresponding path program 1 times [2021-11-17 07:42:32,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:42:32,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093238454] [2021-11-17 07:42:32,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:42:32,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:42:32,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:42:32,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:32,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:42:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:32,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:42:32,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:32,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 07:42:32,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 07:42:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 07:42:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 07:42:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 07:42:32,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 07:42:32,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:42:32,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 07:42:32,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 07:42:32,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:32,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 07:42:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 07:42:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:42:32,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:32,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 07:42:32,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 07:42:32,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-17 07:42:32,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 07:42:32,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 07:42:32,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 07:42:32,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:32,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-17 07:42:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:32,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:32,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-17 07:42:32,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-11-17 07:42:32,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-11-17 07:42:32,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 07:42:32,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:32,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-11-17 07:42:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-11-17 07:42:32,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:32,498 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 636 trivial. 0 not checked. [2021-11-17 07:42:32,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:42:32,498 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093238454] [2021-11-17 07:42:32,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093238454] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:42:32,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:42:32,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 07:42:32,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759096907] [2021-11-17 07:42:32,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:42:32,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 07:42:32,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:42:32,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 07:42:32,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:42:32,501 INFO L87 Difference]: Start difference. First operand 23564 states and 30466 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-17 07:42:35,657 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:42:36,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:42:36,676 INFO L93 Difference]: Finished difference Result 46363 states and 59935 transitions. [2021-11-17 07:42:36,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:42:36,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 313 [2021-11-17 07:42:36,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:42:36,766 INFO L225 Difference]: With dead ends: 46363 [2021-11-17 07:42:36,767 INFO L226 Difference]: Without dead ends: 22862 [2021-11-17 07:42:36,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-17 07:42:36,831 INFO L933 BasicCegarLoop]: 1108 mSDtfsCounter, 1047 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 689 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 1860 SdHoareTripleChecker+Invalid, 1414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 689 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-17 07:42:36,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1206 Valid, 1860 Invalid, 1414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [689 Valid, 724 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2021-11-17 07:42:36,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22862 states. [2021-11-17 07:42:37,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22862 to 22244. [2021-11-17 07:42:37,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22244 states, 14085 states have (on average 1.1503017394391197) internal successors, (16202), 14436 states have internal predecessors, (16202), 5764 states have call successors, (5764), 2391 states have call predecessors, (5764), 2393 states have return successors, (5812), 5736 states have call predecessors, (5812), 5764 states have call successors, (5812) [2021-11-17 07:42:37,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22244 states to 22244 states and 27778 transitions. [2021-11-17 07:42:37,927 INFO L78 Accepts]: Start accepts. Automaton has 22244 states and 27778 transitions. Word has length 313 [2021-11-17 07:42:37,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:42:37,927 INFO L470 AbstractCegarLoop]: Abstraction has 22244 states and 27778 transitions. [2021-11-17 07:42:37,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-17 07:42:37,928 INFO L276 IsEmpty]: Start isEmpty. Operand 22244 states and 27778 transitions. [2021-11-17 07:42:37,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2021-11-17 07:42:37,932 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:42:37,933 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:42:37,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-17 07:42:37,933 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:42:37,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:42:37,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1606085870, now seen corresponding path program 1 times [2021-11-17 07:42:37,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:42:37,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781443416] [2021-11-17 07:42:37,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:42:37,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:42:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:42:38,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:38,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:42:38,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:42:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:38,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 07:42:38,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 07:42:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 07:42:38,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 07:42:38,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 07:42:38,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 07:42:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:38,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:42:38,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 07:42:38,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 07:42:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:38,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 07:42:38,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 07:42:38,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:42:38,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:38,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 07:42:38,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 07:42:38,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-17 07:42:38,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 07:42:38,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 07:42:38,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 07:42:38,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:38,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-17 07:42:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:38,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:38,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-17 07:42:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-11-17 07:42:38,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-11-17 07:42:38,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 07:42:38,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:38,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-11-17 07:42:38,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-11-17 07:42:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:38,245 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 636 trivial. 0 not checked. [2021-11-17 07:42:38,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:42:38,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781443416] [2021-11-17 07:42:38,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781443416] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:42:38,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:42:38,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 07:42:38,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957389920] [2021-11-17 07:42:38,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:42:38,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 07:42:38,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:42:38,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 07:42:38,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-17 07:42:38,249 INFO L87 Difference]: Start difference. First operand 22244 states and 27778 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-17 07:42:41,875 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:42:43,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:42:43,037 INFO L93 Difference]: Finished difference Result 23010 states and 28872 transitions. [2021-11-17 07:42:43,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 07:42:43,037 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 313 [2021-11-17 07:42:43,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:42:43,117 INFO L225 Difference]: With dead ends: 23010 [2021-11-17 07:42:43,117 INFO L226 Difference]: Without dead ends: 23008 [2021-11-17 07:42:43,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2021-11-17 07:42:43,133 INFO L933 BasicCegarLoop]: 1134 mSDtfsCounter, 1026 mSDsluCounter, 2764 mSDsCounter, 0 mSdLazyCounter, 1577 mSolverCounterSat, 635 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1217 SdHoareTripleChecker+Valid, 3898 SdHoareTripleChecker+Invalid, 2213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 635 IncrementalHoareTripleChecker+Valid, 1577 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-17 07:42:43,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1217 Valid, 3898 Invalid, 2213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [635 Valid, 1577 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2021-11-17 07:42:43,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23008 states. [2021-11-17 07:42:43,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23008 to 22388. [2021-11-17 07:42:43,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22388 states, 14193 states have (on average 1.148030719368703) internal successors, (16294), 14544 states have internal predecessors, (16294), 5764 states have call successors, (5764), 2427 states have call predecessors, (5764), 2429 states have return successors, (5812), 5736 states have call predecessors, (5812), 5764 states have call successors, (5812) [2021-11-17 07:42:43,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22388 states to 22388 states and 27870 transitions. [2021-11-17 07:42:43,987 INFO L78 Accepts]: Start accepts. Automaton has 22388 states and 27870 transitions. Word has length 313 [2021-11-17 07:42:43,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:42:43,988 INFO L470 AbstractCegarLoop]: Abstraction has 22388 states and 27870 transitions. [2021-11-17 07:42:43,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-17 07:42:43,988 INFO L276 IsEmpty]: Start isEmpty. Operand 22388 states and 27870 transitions. [2021-11-17 07:42:43,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2021-11-17 07:42:43,993 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:42:43,993 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 12, 12, 12, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:42:43,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-17 07:42:43,993 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:42:43,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:42:43,994 INFO L85 PathProgramCache]: Analyzing trace with hash -240510272, now seen corresponding path program 1 times [2021-11-17 07:42:43,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:42:43,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072709576] [2021-11-17 07:42:43,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:42:43,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:42:44,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:42:44,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:42:44,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:42:44,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 07:42:44,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 07:42:44,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 07:42:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 07:42:44,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 07:42:44,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 07:42:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:44,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:42:44,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 07:42:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 07:42:44,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:44,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 07:42:44,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 07:42:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:42:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 07:42:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 07:42:44,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-17 07:42:44,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 07:42:44,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 07:42:44,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 07:42:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:44,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-17 07:42:44,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-17 07:42:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-11-17 07:42:44,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-11-17 07:42:44,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 07:42:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-11-17 07:42:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-11-17 07:42:44,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2021-11-17 07:42:44,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 07:42:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 07:42:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-11-17 07:42:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:44,284 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked. [2021-11-17 07:42:44,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:42:44,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072709576] [2021-11-17 07:42:44,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072709576] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:42:44,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:42:44,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 07:42:44,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092730368] [2021-11-17 07:42:44,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:42:44,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 07:42:44,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:42:44,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 07:42:44,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-17 07:42:44,286 INFO L87 Difference]: Start difference. First operand 22388 states and 27870 transitions. Second operand has 8 states, 7 states have (on average 17.714285714285715) internal successors, (124), 4 states have internal predecessors, (124), 3 states have call successors, (34), 6 states have call predecessors, (34), 2 states have return successors, (32), 2 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-17 07:42:48,595 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:42:49,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:42:49,813 INFO L93 Difference]: Finished difference Result 23008 states and 28819 transitions. [2021-11-17 07:42:49,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-17 07:42:49,814 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 17.714285714285715) internal successors, (124), 4 states have internal predecessors, (124), 3 states have call successors, (34), 6 states have call predecessors, (34), 2 states have return successors, (32), 2 states have call predecessors, (32), 3 states have call successors, (32) Word has length 333 [2021-11-17 07:42:49,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:42:49,894 INFO L225 Difference]: With dead ends: 23008 [2021-11-17 07:42:49,895 INFO L226 Difference]: Without dead ends: 22715 [2021-11-17 07:42:49,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-11-17 07:42:49,913 INFO L933 BasicCegarLoop]: 1149 mSDtfsCounter, 675 mSDsluCounter, 3331 mSDsCounter, 0 mSdLazyCounter, 2651 mSolverCounterSat, 1014 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 4480 SdHoareTripleChecker+Invalid, 3666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1014 IncrementalHoareTripleChecker+Valid, 2651 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-17 07:42:49,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [707 Valid, 4480 Invalid, 3666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1014 Valid, 2651 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2021-11-17 07:42:49,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22715 states. [2021-11-17 07:42:50,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22715 to 22097. [2021-11-17 07:42:50,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22097 states, 13991 states have (on average 1.143949681938389) internal successors, (16005), 14338 states have internal predecessors, (16005), 5708 states have call successors, (5708), 2394 states have call predecessors, (5708), 2396 states have return successors, (5756), 5680 states have call predecessors, (5756), 5708 states have call successors, (5756) [2021-11-17 07:42:50,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22097 states to 22097 states and 27469 transitions. [2021-11-17 07:42:50,863 INFO L78 Accepts]: Start accepts. Automaton has 22097 states and 27469 transitions. Word has length 333 [2021-11-17 07:42:50,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:42:50,863 INFO L470 AbstractCegarLoop]: Abstraction has 22097 states and 27469 transitions. [2021-11-17 07:42:50,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 17.714285714285715) internal successors, (124), 4 states have internal predecessors, (124), 3 states have call successors, (34), 6 states have call predecessors, (34), 2 states have return successors, (32), 2 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-17 07:42:50,864 INFO L276 IsEmpty]: Start isEmpty. Operand 22097 states and 27469 transitions. [2021-11-17 07:42:50,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2021-11-17 07:42:50,868 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:42:50,869 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:42:50,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-17 07:42:50,869 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:42:50,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:42:50,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1816112068, now seen corresponding path program 1 times [2021-11-17 07:42:50,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:42:50,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952865411] [2021-11-17 07:42:50,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:42:50,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:42:50,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:42:51,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:42:51,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:51,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:42:51,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:51,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 07:42:51,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 07:42:51,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 07:42:51,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 07:42:51,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 07:42:51,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 07:42:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:51,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:42:51,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 07:42:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 07:42:51,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:51,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 07:42:51,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 07:42:51,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:42:51,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 07:42:51,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 07:42:51,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-17 07:42:51,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 07:42:51,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 07:42:51,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 07:42:51,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-17 07:42:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-17 07:42:51,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-11-17 07:42:51,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-11-17 07:42:51,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 07:42:51,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:51,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-11-17 07:42:51,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-11-17 07:42:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2021-11-17 07:42:51,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 07:42:51,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 07:42:51,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-11-17 07:42:51,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2021-11-17 07:42:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:51,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 07:42:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-17 07:42:51,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:51,431 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 728 trivial. 0 not checked. [2021-11-17 07:42:51,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:42:51,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952865411] [2021-11-17 07:42:51,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952865411] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:42:51,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:42:51,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 07:42:51,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485457623] [2021-11-17 07:42:51,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:42:51,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 07:42:51,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:42:51,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 07:42:51,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-17 07:42:51,434 INFO L87 Difference]: Start difference. First operand 22097 states and 27469 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 4 states have internal predecessors, (134), 3 states have call successors, (38), 6 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-17 07:42:54,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:42:54,595 INFO L93 Difference]: Finished difference Result 22715 states and 28417 transitions. [2021-11-17 07:42:54,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-17 07:42:54,596 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 4 states have internal predecessors, (134), 3 states have call successors, (38), 6 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 3 states have call successors, (36) Word has length 354 [2021-11-17 07:42:54,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:42:54,665 INFO L225 Difference]: With dead ends: 22715 [2021-11-17 07:42:54,665 INFO L226 Difference]: Without dead ends: 22713 [2021-11-17 07:42:54,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2021-11-17 07:42:54,675 INFO L933 BasicCegarLoop]: 1106 mSDtfsCounter, 1539 mSDsluCounter, 2477 mSDsCounter, 0 mSdLazyCounter, 1548 mSolverCounterSat, 1569 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1680 SdHoareTripleChecker+Valid, 3583 SdHoareTripleChecker+Invalid, 3117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1569 IncrementalHoareTripleChecker+Valid, 1548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-17 07:42:54,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1680 Valid, 3583 Invalid, 3117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1569 Valid, 1548 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-17 07:42:54,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22713 states. [2021-11-17 07:42:55,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22713 to 22095. [2021-11-17 07:42:55,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22095 states, 13990 states have (on average 1.141386704789135) internal successors, (15968), 14336 states have internal predecessors, (15968), 5708 states have call successors, (5708), 2394 states have call predecessors, (5708), 2396 states have return successors, (5756), 5680 states have call predecessors, (5756), 5708 states have call successors, (5756) [2021-11-17 07:42:55,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22095 states to 22095 states and 27432 transitions. [2021-11-17 07:42:55,515 INFO L78 Accepts]: Start accepts. Automaton has 22095 states and 27432 transitions. Word has length 354 [2021-11-17 07:42:55,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:42:55,516 INFO L470 AbstractCegarLoop]: Abstraction has 22095 states and 27432 transitions. [2021-11-17 07:42:55,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 4 states have internal predecessors, (134), 3 states have call successors, (38), 6 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-17 07:42:55,516 INFO L276 IsEmpty]: Start isEmpty. Operand 22095 states and 27432 transitions. [2021-11-17 07:42:55,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2021-11-17 07:42:55,520 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:42:55,520 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:42:55,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-17 07:42:55,521 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:42:55,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:42:55,521 INFO L85 PathProgramCache]: Analyzing trace with hash -367444826, now seen corresponding path program 1 times [2021-11-17 07:42:55,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:42:55,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315575672] [2021-11-17 07:42:55,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:42:55,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:42:55,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:42:55,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:55,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:42:55,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:55,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:42:55,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:55,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 07:42:55,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 07:42:55,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 07:42:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 07:42:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 07:42:55,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 07:42:55,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:55,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:42:55,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 07:42:55,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 07:42:55,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:55,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 07:42:55,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 07:42:55,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:42:55,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:55,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 07:42:55,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 07:42:55,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-17 07:42:55,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 07:42:55,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 07:42:55,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 07:42:55,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:55,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-17 07:42:55,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:55,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:55,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-17 07:42:55,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-11-17 07:42:55,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-11-17 07:42:55,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 07:42:55,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:55,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-11-17 07:42:55,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-11-17 07:42:55,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2021-11-17 07:42:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 07:42:55,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 07:42:55,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-11-17 07:42:55,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2021-11-17 07:42:55,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:42:55,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 07:42:55,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-17 07:42:55,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2021-11-17 07:42:55,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 07:42:55,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 07:42:55,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-11-17 07:42:55,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:42:55,824 INFO L134 CoverageAnalysis]: Checked inductivity of 789 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 787 trivial. 0 not checked. [2021-11-17 07:42:55,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:42:55,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315575672] [2021-11-17 07:42:55,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315575672] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:42:55,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:42:55,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 07:42:55,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086031534] [2021-11-17 07:42:55,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:42:55,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 07:42:55,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:42:55,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 07:42:55,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-17 07:42:55,827 INFO L87 Difference]: Start difference. First operand 22095 states and 27432 transitions. Second operand has 9 states, 8 states have (on average 17.25) internal successors, (138), 4 states have internal predecessors, (138), 4 states have call successors, (42), 7 states have call predecessors, (42), 2 states have return successors, (40), 2 states have call predecessors, (40), 4 states have call successors, (40) [2021-11-17 07:42:59,969 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:43:01,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:43:01,351 INFO L93 Difference]: Finished difference Result 22713 states and 28380 transitions. [2021-11-17 07:43:01,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-17 07:43:01,352 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 17.25) internal successors, (138), 4 states have internal predecessors, (138), 4 states have call successors, (42), 7 states have call predecessors, (42), 2 states have return successors, (40), 2 states have call predecessors, (40), 4 states have call successors, (40) Word has length 374 [2021-11-17 07:43:01,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:43:01,355 INFO L225 Difference]: With dead ends: 22713 [2021-11-17 07:43:01,355 INFO L226 Difference]: Without dead ends: 0 [2021-11-17 07:43:01,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2021-11-17 07:43:01,387 INFO L933 BasicCegarLoop]: 1112 mSDtfsCounter, 853 mSDsluCounter, 3535 mSDsCounter, 0 mSdLazyCounter, 2900 mSolverCounterSat, 1327 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 4647 SdHoareTripleChecker+Invalid, 4228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1327 IncrementalHoareTripleChecker+Valid, 2900 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-17 07:43:01,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [863 Valid, 4647 Invalid, 4228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1327 Valid, 2900 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2021-11-17 07:43:01,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-17 07:43:01,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-17 07:43:01,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-17 07:43:01,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-17 07:43:01,392 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 374 [2021-11-17 07:43:01,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:43:01,392 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-17 07:43:01,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 17.25) internal successors, (138), 4 states have internal predecessors, (138), 4 states have call successors, (42), 7 states have call predecessors, (42), 2 states have return successors, (40), 2 states have call predecessors, (40), 4 states have call successors, (40) [2021-11-17 07:43:01,393 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-17 07:43:01,393 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-17 07:43:01,395 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-17 07:43:01,403 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-11-17 07:43:01,407 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-11-17 07:43:01,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-17 07:43:01,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-17 07:54:33,998 WARN L227 SmtUtils]: Spent 11.45m on a formula simplification. DAG size of input: 91 DAG size of output: 87 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) Killed by 15