./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.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 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 04:52:44,604 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 04:52:44,614 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 04:52:44,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 04:52:44,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 04:52:44,664 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 04:52:44,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 04:52:44,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 04:52:44,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 04:52:44,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 04:52:44,680 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 04:52:44,681 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 04:52:44,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 04:52:44,684 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 04:52:44,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 04:52:44,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 04:52:44,688 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 04:52:44,689 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 04:52:44,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 04:52:44,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 04:52:44,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 04:52:44,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 04:52:44,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 04:52:44,702 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 04:52:44,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 04:52:44,706 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 04:52:44,707 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 04:52:44,708 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 04:52:44,708 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 04:52:44,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 04:52:44,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 04:52:44,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 04:52:44,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 04:52:44,713 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 04:52:44,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 04:52:44,714 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 04:52:44,715 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 04:52:44,715 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 04:52:44,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 04:52:44,716 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 04:52:44,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 04:52:44,717 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 04:52:44,753 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 04:52:44,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 04:52:44,754 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 04:52:44,754 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 04:52:44,755 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 04:52:44,755 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 04:52:44,756 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 04:52:44,756 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 04:52:44,757 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 04:52:44,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 04:52:44,758 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 04:52:44,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 04:52:44,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 04:52:44,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 04:52:44,758 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 04:52:44,759 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 04:52:44,759 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 04:52:44,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 04:52:44,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 04:52:44,759 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 04:52:44,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 04:52:44,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:52:44,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 04:52:44,760 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 04:52:44,760 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 04:52:44,761 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 04:52:44,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 04:52:44,761 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 04:52:44,761 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 04:52:44,761 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 04:52:44,762 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 04:52:44,762 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb [2021-12-16 04:52:44,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 04:52:45,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 04:52:45,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 04:52:45,006 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 04:52:45,007 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 04:52:45,008 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2021-12-16 04:52:45,057 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f50ae099/bf7b81346d3c423783f03309a709d938/FLAG9890f067e [2021-12-16 04:52:45,805 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 04:52:45,805 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2021-12-16 04:52:45,854 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f50ae099/bf7b81346d3c423783f03309a709d938/FLAG9890f067e [2021-12-16 04:52:46,032 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f50ae099/bf7b81346d3c423783f03309a709d938 [2021-12-16 04:52:46,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 04:52:46,036 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 04:52:46,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 04:52:46,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 04:52:46,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 04:52:46,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:52:46" (1/1) ... [2021-12-16 04:52:46,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79bed627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:52:46, skipping insertion in model container [2021-12-16 04:52:46,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:52:46" (1/1) ... [2021-12-16 04:52:46,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 04:52:46,173 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 04:52:48,537 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2021-12-16 04:52:48,540 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2021-12-16 04:52:48,541 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2021-12-16 04:52:48,542 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2021-12-16 04:52:48,564 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:52:48,594 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 04:52:48,873 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2021-12-16 04:52:48,874 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2021-12-16 04:52:48,874 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2021-12-16 04:52:48,874 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2021-12-16 04:52:48,910 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:52:49,052 INFO L208 MainTranslator]: Completed translation [2021-12-16 04:52:49,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:52:49 WrapperNode [2021-12-16 04:52:49,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 04:52:49,054 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 04:52:49,054 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 04:52:49,054 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 04:52:49,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:52:49" (1/1) ... [2021-12-16 04:52:49,157 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:52:49" (1/1) ... [2021-12-16 04:52:49,344 INFO L137 Inliner]: procedures = 427, calls = 1735, calls flagged for inlining = 206, calls inlined = 187, statements flattened = 4611 [2021-12-16 04:52:49,345 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 04:52:49,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 04:52:49,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 04:52:49,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 04:52:49,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:52:49" (1/1) ... [2021-12-16 04:52:49,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:52:49" (1/1) ... [2021-12-16 04:52:49,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:52:49" (1/1) ... [2021-12-16 04:52:49,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:52:49" (1/1) ... [2021-12-16 04:52:49,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:52:49" (1/1) ... [2021-12-16 04:52:49,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:52:49" (1/1) ... [2021-12-16 04:52:49,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:52:49" (1/1) ... [2021-12-16 04:52:49,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 04:52:49,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 04:52:49,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 04:52:49,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 04:52:49,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:52:49" (1/1) ... [2021-12-16 04:52:49,570 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:52:49,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 04:52:49,596 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-16 04:52:49,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-16 04:52:49,632 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-12-16 04:52:49,633 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-12-16 04:52:49,633 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-16 04:52:49,633 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-16 04:52:49,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-16 04:52:49,633 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-16 04:52:49,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_82 [2021-12-16 04:52:49,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_82 [2021-12-16 04:52:49,634 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-16 04:52:49,634 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-16 04:52:49,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 04:52:49,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 04:52:49,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rr_driver_exit_13_2 [2021-12-16 04:52:49,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rr_driver_exit_13_2 [2021-12-16 04:52:49,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rr_private [2021-12-16 04:52:49,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rr_private [2021-12-16 04:52:49,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-16 04:52:49,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-16 04:52:49,635 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-16 04:52:49,635 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-16 04:52:49,635 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-16 04:52:49,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-16 04:52:49,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-16 04:52:49,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-16 04:52:49,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-16 04:52:49,636 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-16 04:52:49,636 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-16 04:52:49,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 04:52:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-16 04:52:49,637 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-16 04:52:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-16 04:52:49,637 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-16 04:52:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure set_rraddr [2021-12-16 04:52:49,637 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rraddr [2021-12-16 04:52:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-16 04:52:49,638 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-16 04:52:49,638 INFO L130 BoogieDeclarations]: Found specification of procedure rr_read_eeprom_word [2021-12-16 04:52:49,638 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_read_eeprom_word [2021-12-16 04:52:49,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-16 04:52:49,638 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-16 04:52:49,639 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-16 04:52:49,639 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-16 04:52:49,639 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-16 04:52:49,639 INFO L130 BoogieDeclarations]: Found specification of procedure rr_read_eeprom [2021-12-16 04:52:49,639 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_read_eeprom [2021-12-16 04:52:49,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-16 04:52:49,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-16 04:52:49,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-16 04:52:49,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 04:52:49,640 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-16 04:52:49,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-16 04:52:49,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-16 04:52:49,641 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-16 04:52:49,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-16 04:52:49,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-16 04:52:49,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-16 04:52:49,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-16 04:52:49,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-16 04:52:49,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-16 04:52:49,643 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-16 04:52:49,644 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-16 04:52:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-16 04:52:49,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-16 04:52:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 04:52:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-16 04:52:49,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-16 04:52:49,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 04:52:49,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-16 04:52:49,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-16 04:52:49,645 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-16 04:52:49,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-16 04:52:49,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 04:52:49,646 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-16 04:52:49,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-16 04:52:49,646 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-12-16 04:52:49,646 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-12-16 04:52:49,646 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-16 04:52:49,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-16 04:52:49,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rr_private [2021-12-16 04:52:49,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rr_private [2021-12-16 04:52:49,647 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-16 04:52:49,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-16 04:52:49,647 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-16 04:52:49,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-16 04:52:49,648 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-16 04:52:49,648 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-16 04:52:49,648 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-16 04:52:49,648 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-16 04:52:49,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-16 04:52:49,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-16 04:52:49,649 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-16 04:52:49,649 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-16 04:52:49,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 04:52:49,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 04:52:49,650 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-16 04:52:49,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-16 04:52:49,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-16 04:52:49,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-16 04:52:49,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-16 04:52:49,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-16 04:52:49,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-16 04:52:49,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-16 04:52:49,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-16 04:52:49,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-16 04:52:49,651 INFO L130 BoogieDeclarations]: Found specification of procedure rr_remove_one [2021-12-16 04:52:49,651 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_remove_one [2021-12-16 04:52:49,652 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-16 04:52:49,652 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-16 04:52:49,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-16 04:52:49,652 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-16 04:52:49,652 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-16 04:52:49,653 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-16 04:52:49,653 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-16 04:52:49,655 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-16 04:52:49,655 INFO L130 BoogieDeclarations]: Found specification of procedure rr_init1 [2021-12-16 04:52:49,655 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_init1 [2021-12-16 04:52:49,656 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-16 04:52:49,656 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-16 04:52:49,656 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-16 04:52:49,656 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-16 04:52:49,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 04:52:49,657 INFO L130 BoogieDeclarations]: Found specification of procedure rr_open [2021-12-16 04:52:49,662 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_open [2021-12-16 04:52:49,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 04:52:49,662 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-16 04:52:49,662 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-16 04:52:49,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 04:52:49,663 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-16 04:52:49,663 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-16 04:52:49,663 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-16 04:52:49,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-16 04:52:49,663 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-16 04:52:49,663 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-16 04:52:49,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-16 04:52:49,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-16 04:52:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-16 04:52:49,664 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-16 04:52:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-16 04:52:49,664 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-16 04:52:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-16 04:52:49,664 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-16 04:52:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 04:52:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 04:52:49,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 04:52:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure rr_raz_tx [2021-12-16 04:52:49,665 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_raz_tx [2021-12-16 04:52:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure rr_close [2021-12-16 04:52:49,665 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_close [2021-12-16 04:52:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-16 04:52:49,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-16 04:52:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-16 04:52:49,666 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-16 04:52:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-16 04:52:49,666 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-16 04:52:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 04:52:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-16 04:52:49,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-16 04:52:49,667 INFO L130 BoogieDeclarations]: Found specification of procedure rr_raz_rx [2021-12-16 04:52:49,667 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_raz_rx [2021-12-16 04:52:50,331 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 04:52:50,349 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 04:52:53,081 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-16 04:52:54,592 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-16 04:52:54,645 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 04:52:54,660 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 04:52:54,661 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-16 04:52:54,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:52:54 BoogieIcfgContainer [2021-12-16 04:52:54,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 04:52:54,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 04:52:54,667 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 04:52:54,669 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 04:52:54,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:52:46" (1/3) ... [2021-12-16 04:52:54,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73454e5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:52:54, skipping insertion in model container [2021-12-16 04:52:54,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:52:49" (2/3) ... [2021-12-16 04:52:54,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73454e5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:52:54, skipping insertion in model container [2021-12-16 04:52:54,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:52:54" (3/3) ... [2021-12-16 04:52:54,672 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2021-12-16 04:52:54,677 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 04:52:54,677 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-16 04:52:54,719 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 04:52:54,724 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-16 04:52:54,725 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-16 04:52:54,782 INFO L276 IsEmpty]: Start isEmpty. Operand has 1573 states, 1031 states have (on average 1.2580019398642095) internal successors, (1297), 1056 states have internal predecessors, (1297), 469 states have call successors, (469), 71 states have call predecessors, (469), 70 states have return successors, (463), 452 states have call predecessors, (463), 463 states have call successors, (463) [2021-12-16 04:52:54,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-16 04:52:54,802 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:52:54,802 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:52:54,803 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-16 04:52:54,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:52:54,808 INFO L85 PathProgramCache]: Analyzing trace with hash 914006985, now seen corresponding path program 1 times [2021-12-16 04:52:54,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:52:54,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467051864] [2021-12-16 04:52:54,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:52:54,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:52:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:55,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 04:52:55,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:55,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:55,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:55,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:52:55,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:55,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:55,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:55,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 04:52:55,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:55,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:55,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 04:52:55,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:55,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:55,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:55,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 04:52:55,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:55,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:55,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 04:52:55,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:55,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:55,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 04:52:55,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:55,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:55,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:52:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:55,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-16 04:52:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:55,446 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-12-16 04:52:55,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:52:55,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467051864] [2021-12-16 04:52:55,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467051864] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:52:55,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:52:55,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 04:52:55,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625684800] [2021-12-16 04:52:55,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:52:55,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 04:52:55,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:52:55,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 04:52:55,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 04:52:55,485 INFO L87 Difference]: Start difference. First operand has 1573 states, 1031 states have (on average 1.2580019398642095) internal successors, (1297), 1056 states have internal predecessors, (1297), 469 states have call successors, (469), 71 states have call predecessors, (469), 70 states have return successors, (463), 452 states have call predecessors, (463), 463 states have call successors, (463) Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-16 04:52:59,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:52:59,214 INFO L93 Difference]: Finished difference Result 4616 states and 6697 transitions. [2021-12-16 04:52:59,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 04:52:59,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 105 [2021-12-16 04:52:59,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:52:59,255 INFO L225 Difference]: With dead ends: 4616 [2021-12-16 04:52:59,256 INFO L226 Difference]: Without dead ends: 3052 [2021-12-16 04:52:59,282 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 [2021-12-16 04:52:59,288 INFO L933 BasicCegarLoop]: 2444 mSDtfsCounter, 2361 mSDsluCounter, 2617 mSDsCounter, 0 mSdLazyCounter, 1393 mSolverCounterSat, 1180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2767 SdHoareTripleChecker+Valid, 5061 SdHoareTripleChecker+Invalid, 2573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1180 IncrementalHoareTripleChecker+Valid, 1393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-12-16 04:52:59,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2767 Valid, 5061 Invalid, 2573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1180 Valid, 1393 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-12-16 04:52:59,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3052 states. [2021-12-16 04:52:59,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3052 to 3014. [2021-12-16 04:52:59,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3014 states, 1991 states have (on average 1.245605223505776) internal successors, (2480), 2040 states have internal predecessors, (2480), 884 states have call successors, (884), 137 states have call predecessors, (884), 136 states have return successors, (880), 858 states have call predecessors, (880), 880 states have call successors, (880) [2021-12-16 04:52:59,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3014 states to 3014 states and 4244 transitions. [2021-12-16 04:52:59,615 INFO L78 Accepts]: Start accepts. Automaton has 3014 states and 4244 transitions. Word has length 105 [2021-12-16 04:52:59,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:52:59,616 INFO L470 AbstractCegarLoop]: Abstraction has 3014 states and 4244 transitions. [2021-12-16 04:52:59,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-16 04:52:59,616 INFO L276 IsEmpty]: Start isEmpty. Operand 3014 states and 4244 transitions. [2021-12-16 04:52:59,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-16 04:52:59,622 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:52:59,622 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:52:59,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 04:52:59,623 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-16 04:52:59,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:52:59,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1353681049, now seen corresponding path program 1 times [2021-12-16 04:52:59,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:52:59,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024853682] [2021-12-16 04:52:59,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:52:59,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:52:59,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:59,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 04:52:59,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:59,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:59,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:59,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:52:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:59,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:59,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 04:52:59,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:59,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:59,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:59,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 04:52:59,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:59,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:59,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:59,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 04:52:59,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:59,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:59,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 04:52:59,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:59,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:59,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:59,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 04:52:59,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:59,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:59,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:59,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:52:59,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:59,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-16 04:52:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:59,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-16 04:52:59,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:59,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 04:52:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:59,878 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-12-16 04:52:59,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:52:59,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024853682] [2021-12-16 04:52:59,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024853682] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:52:59,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:52:59,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 04:52:59,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107967312] [2021-12-16 04:52:59,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:52:59,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 04:52:59,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:52:59,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 04:52:59,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 04:52:59,886 INFO L87 Difference]: Start difference. First operand 3014 states and 4244 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-16 04:53:03,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:53:03,159 INFO L93 Difference]: Finished difference Result 8532 states and 12053 transitions. [2021-12-16 04:53:03,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 04:53:03,160 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 113 [2021-12-16 04:53:03,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:53:03,195 INFO L225 Difference]: With dead ends: 8532 [2021-12-16 04:53:03,195 INFO L226 Difference]: Without dead ends: 5537 [2021-12-16 04:53:03,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:53:03,212 INFO L933 BasicCegarLoop]: 2401 mSDtfsCounter, 2088 mSDsluCounter, 2635 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 1188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2438 SdHoareTripleChecker+Valid, 5036 SdHoareTripleChecker+Invalid, 2490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1188 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-12-16 04:53:03,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2438 Valid, 5036 Invalid, 2490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1188 Valid, 1302 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-12-16 04:53:03,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5537 states. [2021-12-16 04:53:03,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5537 to 5449. [2021-12-16 04:53:03,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 3568 states have (on average 1.2418721973094171) internal successors, (4431), 3646 states have internal predecessors, (4431), 1613 states have call successors, (1613), 270 states have call predecessors, (1613), 265 states have return successors, (1625), 1568 states have call predecessors, (1625), 1609 states have call successors, (1625) [2021-12-16 04:53:03,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 7669 transitions. [2021-12-16 04:53:03,504 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 7669 transitions. Word has length 113 [2021-12-16 04:53:03,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:53:03,505 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 7669 transitions. [2021-12-16 04:53:03,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-16 04:53:03,505 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 7669 transitions. [2021-12-16 04:53:03,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-16 04:53:03,512 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:53:03,512 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:53:03,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 04:53:03,513 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-16 04:53:03,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:53:03,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1577520748, now seen corresponding path program 1 times [2021-12-16 04:53:03,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:53:03,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064225625] [2021-12-16 04:53:03,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:53:03,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:53:03,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:03,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 04:53:03,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:03,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:03,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:03,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:53:03,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:03,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:03,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:03,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 04:53:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:03,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:03,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:03,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 04:53:03,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:03,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:03,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 04:53:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:03,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:03,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:03,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 04:53:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:03,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:03,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:03,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 04:53:03,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:03,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:03,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:03,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:53:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:03,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 04:53:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:03,722 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-12-16 04:53:03,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:53:03,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064225625] [2021-12-16 04:53:03,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064225625] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:53:03,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:53:03,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 04:53:03,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163194897] [2021-12-16 04:53:03,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:53:03,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 04:53:03,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:53:03,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 04:53:03,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 04:53:03,728 INFO L87 Difference]: Start difference. First operand 5449 states and 7669 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-16 04:53:06,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:53:06,567 INFO L93 Difference]: Finished difference Result 10916 states and 15401 transitions. [2021-12-16 04:53:06,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 04:53:06,567 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 116 [2021-12-16 04:53:06,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:53:06,598 INFO L225 Difference]: With dead ends: 10916 [2021-12-16 04:53:06,599 INFO L226 Difference]: Without dead ends: 5486 [2021-12-16 04:53:06,621 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 [2021-12-16 04:53:06,625 INFO L933 BasicCegarLoop]: 2438 mSDtfsCounter, 1681 mSDsluCounter, 2606 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 942 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2022 SdHoareTripleChecker+Valid, 5044 SdHoareTripleChecker+Invalid, 2270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 942 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-16 04:53:06,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2022 Valid, 5044 Invalid, 2270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [942 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-16 04:53:06,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5486 states. [2021-12-16 04:53:06,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5486 to 5386. [2021-12-16 04:53:06,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5386 states, 3486 states have (on average 1.2358003442340793) internal successors, (4308), 3563 states have internal predecessors, (4308), 1611 states have call successors, (1611), 291 states have call predecessors, (1611), 286 states have return successors, (1615), 1565 states have call predecessors, (1615), 1607 states have call successors, (1615) [2021-12-16 04:53:06,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5386 states to 5386 states and 7534 transitions. [2021-12-16 04:53:06,932 INFO L78 Accepts]: Start accepts. Automaton has 5386 states and 7534 transitions. Word has length 116 [2021-12-16 04:53:06,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:53:06,932 INFO L470 AbstractCegarLoop]: Abstraction has 5386 states and 7534 transitions. [2021-12-16 04:53:06,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-16 04:53:06,933 INFO L276 IsEmpty]: Start isEmpty. Operand 5386 states and 7534 transitions. [2021-12-16 04:53:06,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-16 04:53:06,936 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:53:06,936 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:53:06,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 04:53:06,937 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-16 04:53:06,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:53:06,937 INFO L85 PathProgramCache]: Analyzing trace with hash 936201597, now seen corresponding path program 1 times [2021-12-16 04:53:06,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:53:06,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789088788] [2021-12-16 04:53:06,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:53:06,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:53:07,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:07,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 04:53:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:07,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:07,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:07,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:53:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:07,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:07,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 04:53:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:07,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:07,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:07,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 04:53:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:07,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:07,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 04:53:07,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:07,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:07,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:07,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 04:53:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:07,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:07,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:07,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 04:53:07,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:07,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:07,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:07,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:53:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:07,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-16 04:53:07,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:07,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 04:53:07,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:07,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 04:53:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:07,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:07,182 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-12-16 04:53:07,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:53:07,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789088788] [2021-12-16 04:53:07,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789088788] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:53:07,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:53:07,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 04:53:07,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773083444] [2021-12-16 04:53:07,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:53:07,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 04:53:07,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:53:07,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 04:53:07,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 04:53:07,186 INFO L87 Difference]: Start difference. First operand 5386 states and 7534 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-16 04:53:10,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:53:10,188 INFO L93 Difference]: Finished difference Result 14275 states and 19994 transitions. [2021-12-16 04:53:10,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 04:53:10,188 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 133 [2021-12-16 04:53:10,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:53:10,243 INFO L225 Difference]: With dead ends: 14275 [2021-12-16 04:53:10,243 INFO L226 Difference]: Without dead ends: 8908 [2021-12-16 04:53:10,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:53:10,270 INFO L933 BasicCegarLoop]: 2381 mSDtfsCounter, 2117 mSDsluCounter, 2609 mSDsCounter, 0 mSdLazyCounter, 1332 mSolverCounterSat, 1177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2467 SdHoareTripleChecker+Valid, 4990 SdHoareTripleChecker+Invalid, 2509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1177 IncrementalHoareTripleChecker+Valid, 1332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-16 04:53:10,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2467 Valid, 4990 Invalid, 2509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1177 Valid, 1332 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-16 04:53:10,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8908 states. [2021-12-16 04:53:10,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8908 to 8771. [2021-12-16 04:53:10,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8771 states, 5659 states have (on average 1.229545856158332) internal successors, (6958), 5798 states have internal predecessors, (6958), 2630 states have call successors, (2630), 490 states have call predecessors, (2630), 479 states have return successors, (2642), 2533 states have call predecessors, (2642), 2626 states have call successors, (2642) [2021-12-16 04:53:10,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8771 states to 8771 states and 12230 transitions. [2021-12-16 04:53:10,700 INFO L78 Accepts]: Start accepts. Automaton has 8771 states and 12230 transitions. Word has length 133 [2021-12-16 04:53:10,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:53:10,702 INFO L470 AbstractCegarLoop]: Abstraction has 8771 states and 12230 transitions. [2021-12-16 04:53:10,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-16 04:53:10,702 INFO L276 IsEmpty]: Start isEmpty. Operand 8771 states and 12230 transitions. [2021-12-16 04:53:10,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-12-16 04:53:10,704 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:53:10,704 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 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] [2021-12-16 04:53:10,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 04:53:10,705 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)] === [2021-12-16 04:53:10,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:53:10,705 INFO L85 PathProgramCache]: Analyzing trace with hash 883455566, now seen corresponding path program 1 times [2021-12-16 04:53:10,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:53:10,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718645661] [2021-12-16 04:53:10,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:53:10,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:53:10,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:10,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 04:53:10,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:10,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:10,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:53:10,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:10,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:10,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 04:53:10,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:10,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:10,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:10,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 04:53:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:10,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:10,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 04:53:10,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:10,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:10,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:10,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 04:53:10,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:10,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:10,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:10,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 04:53:10,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:10,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:10,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:53:10,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:10,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-16 04:53:10,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:10,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 04:53:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:10,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 04:53:10,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:10,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-16 04:53:10,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:10,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 04:53:10,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:10,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 04:53:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:10,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 04:53:10,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:10,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 04:53:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:10,944 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2021-12-16 04:53:10,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:53:10,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718645661] [2021-12-16 04:53:10,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718645661] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:53:10,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:53:10,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 04:53:10,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679572116] [2021-12-16 04:53:10,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:53:10,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 04:53:10,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:53:10,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 04:53:10,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:53:10,946 INFO L87 Difference]: Start difference. First operand 8771 states and 12230 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-16 04:53:16,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:53:16,008 INFO L93 Difference]: Finished difference Result 25399 states and 35603 transitions. [2021-12-16 04:53:16,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 04:53:16,009 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 144 [2021-12-16 04:53:16,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:53:16,086 INFO L225 Difference]: With dead ends: 25399 [2021-12-16 04:53:16,086 INFO L226 Difference]: Without dead ends: 16647 [2021-12-16 04:53:16,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-16 04:53:16,121 INFO L933 BasicCegarLoop]: 2922 mSDtfsCounter, 2799 mSDsluCounter, 3796 mSDsCounter, 0 mSdLazyCounter, 2593 mSolverCounterSat, 2194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3151 SdHoareTripleChecker+Valid, 6718 SdHoareTripleChecker+Invalid, 4787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2194 IncrementalHoareTripleChecker+Valid, 2593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-12-16 04:53:16,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3151 Valid, 6718 Invalid, 4787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2194 Valid, 2593 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2021-12-16 04:53:16,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16647 states. [2021-12-16 04:53:16,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16647 to 15550. [2021-12-16 04:53:16,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15550 states, 10249 states have (on average 1.2338764757537322) internal successors, (12646), 10531 states have internal predecessors, (12646), 4444 states have call successors, (4444), 873 states have call predecessors, (4444), 854 states have return successors, (4488), 4238 states have call predecessors, (4488), 4440 states have call successors, (4488) [2021-12-16 04:53:16,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15550 states to 15550 states and 21578 transitions. [2021-12-16 04:53:16,763 INFO L78 Accepts]: Start accepts. Automaton has 15550 states and 21578 transitions. Word has length 144 [2021-12-16 04:53:16,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:53:16,763 INFO L470 AbstractCegarLoop]: Abstraction has 15550 states and 21578 transitions. [2021-12-16 04:53:16,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-16 04:53:16,764 INFO L276 IsEmpty]: Start isEmpty. Operand 15550 states and 21578 transitions. [2021-12-16 04:53:16,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-16 04:53:16,767 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:53:16,767 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2021-12-16 04:53:16,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 04:53:16,767 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-16 04:53:16,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:53:16,768 INFO L85 PathProgramCache]: Analyzing trace with hash 652013550, now seen corresponding path program 1 times [2021-12-16 04:53:16,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:53:16,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118397343] [2021-12-16 04:53:16,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:53:16,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:53:16,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:16,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 04:53:16,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:16,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:16,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:16,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:53:16,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:16,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:16,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:16,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 04:53:16,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:16,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:16,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:16,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 04:53:16,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:17,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:17,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:17,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 04:53:17,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:17,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:17,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:17,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 04:53:17,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:17,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:17,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:17,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 04:53:17,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:17,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:17,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:17,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:53:17,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:17,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-16 04:53:17,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:17,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-16 04:53:17,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:17,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-16 04:53:17,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:17,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-16 04:53:17,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:17,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:17,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:17,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-16 04:53:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:17,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-16 04:53:17,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:17,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-16 04:53:17,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:17,089 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2021-12-16 04:53:17,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:53:17,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118397343] [2021-12-16 04:53:17,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118397343] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:53:17,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:53:17,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 04:53:17,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938391602] [2021-12-16 04:53:17,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:53:17,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 04:53:17,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:53:17,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 04:53:17,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 04:53:17,092 INFO L87 Difference]: Start difference. First operand 15550 states and 21578 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-16 04:53:20,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:53:20,133 INFO L93 Difference]: Finished difference Result 44892 states and 62546 transitions. [2021-12-16 04:53:20,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 04:53:20,134 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 161 [2021-12-16 04:53:20,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:53:20,261 INFO L225 Difference]: With dead ends: 44892 [2021-12-16 04:53:20,262 INFO L226 Difference]: Without dead ends: 29904 [2021-12-16 04:53:20,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:53:20,319 INFO L933 BasicCegarLoop]: 3009 mSDtfsCounter, 2193 mSDsluCounter, 2893 mSDsCounter, 0 mSdLazyCounter, 1393 mSolverCounterSat, 987 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2593 SdHoareTripleChecker+Valid, 5902 SdHoareTripleChecker+Invalid, 2380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 987 IncrementalHoareTripleChecker+Valid, 1393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-16 04:53:20,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2593 Valid, 5902 Invalid, 2380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [987 Valid, 1393 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-16 04:53:20,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29904 states. [2021-12-16 04:53:21,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29904 to 29542. [2021-12-16 04:53:21,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29542 states, 19507 states have (on average 1.234531193930384) internal successors, (24082), 20011 states have internal predecessors, (24082), 8415 states have call successors, (8415), 1646 states have call predecessors, (8415), 1617 states have return successors, (8507), 8069 states have call predecessors, (8507), 8411 states have call successors, (8507) [2021-12-16 04:53:21,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29542 states to 29542 states and 41004 transitions. [2021-12-16 04:53:21,903 INFO L78 Accepts]: Start accepts. Automaton has 29542 states and 41004 transitions. Word has length 161 [2021-12-16 04:53:21,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:53:21,904 INFO L470 AbstractCegarLoop]: Abstraction has 29542 states and 41004 transitions. [2021-12-16 04:53:21,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-16 04:53:21,904 INFO L276 IsEmpty]: Start isEmpty. Operand 29542 states and 41004 transitions. [2021-12-16 04:53:21,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-16 04:53:21,908 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:53:21,908 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2021-12-16 04:53:21,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 04:53:21,909 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-16 04:53:21,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:53:21,909 INFO L85 PathProgramCache]: Analyzing trace with hash 792562160, now seen corresponding path program 1 times [2021-12-16 04:53:21,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:53:21,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47464492] [2021-12-16 04:53:21,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:53:21,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:53:21,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:22,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 04:53:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:22,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:22,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:22,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:53:22,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:22,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:22,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 04:53:22,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:22,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:22,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 04:53:22,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:22,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:22,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:22,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 04:53:22,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:22,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:22,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:22,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 04:53:22,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:22,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:22,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:22,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 04:53:22,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:22,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:22,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:53:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:22,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-16 04:53:22,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:22,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-16 04:53:22,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:22,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-16 04:53:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:22,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-16 04:53:22,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:22,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:22,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:22,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-16 04:53:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:22,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-16 04:53:22,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:22,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-16 04:53:22,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:22,292 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2021-12-16 04:53:22,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:53:22,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47464492] [2021-12-16 04:53:22,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47464492] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:53:22,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:53:22,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 04:53:22,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141152572] [2021-12-16 04:53:22,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:53:22,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 04:53:22,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:53:22,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 04:53:22,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-16 04:53:22,295 INFO L87 Difference]: Start difference. First operand 29542 states and 41004 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2021-12-16 04:53:25,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:53:25,270 INFO L93 Difference]: Finished difference Result 29906 states and 41644 transitions. [2021-12-16 04:53:25,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 04:53:25,270 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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 161 [2021-12-16 04:53:25,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:53:25,410 INFO L225 Difference]: With dead ends: 29906 [2021-12-16 04:53:25,410 INFO L226 Difference]: Without dead ends: 29904 [2021-12-16 04:53:25,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-16 04:53:25,432 INFO L933 BasicCegarLoop]: 2080 mSDtfsCounter, 2034 mSDsluCounter, 4332 mSDsCounter, 0 mSdLazyCounter, 1447 mSolverCounterSat, 789 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2339 SdHoareTripleChecker+Valid, 6412 SdHoareTripleChecker+Invalid, 2236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 789 IncrementalHoareTripleChecker+Valid, 1447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-16 04:53:25,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2339 Valid, 6412 Invalid, 2236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [789 Valid, 1447 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-16 04:53:25,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29904 states. [2021-12-16 04:53:26,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29904 to 29546. [2021-12-16 04:53:26,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29546 states, 19510 states have (on average 1.234495130702204) internal successors, (24085), 20014 states have internal predecessors, (24085), 8415 states have call successors, (8415), 1647 states have call predecessors, (8415), 1618 states have return successors, (8507), 8069 states have call predecessors, (8507), 8411 states have call successors, (8507) [2021-12-16 04:53:26,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29546 states to 29546 states and 41007 transitions. [2021-12-16 04:53:26,891 INFO L78 Accepts]: Start accepts. Automaton has 29546 states and 41007 transitions. Word has length 161 [2021-12-16 04:53:26,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:53:26,891 INFO L470 AbstractCegarLoop]: Abstraction has 29546 states and 41007 transitions. [2021-12-16 04:53:26,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2021-12-16 04:53:26,892 INFO L276 IsEmpty]: Start isEmpty. Operand 29546 states and 41007 transitions. [2021-12-16 04:53:26,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-12-16 04:53:26,895 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:53:26,895 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 7, 7, 7, 7, 7, 7, 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] [2021-12-16 04:53:26,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-16 04:53:26,896 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-16 04:53:26,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:53:26,897 INFO L85 PathProgramCache]: Analyzing trace with hash 625675974, now seen corresponding path program 1 times [2021-12-16 04:53:26,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:53:26,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390855699] [2021-12-16 04:53:26,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:53:26,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:53:26,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:26,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 04:53:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:26,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:26,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:26,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:53:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:26,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:26,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 04:53:26,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:26,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:27,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:27,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 04:53:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:27,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:27,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 04:53:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:27,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:27,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:27,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 04:53:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:27,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:27,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 04:53:27,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:27,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:53:27,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:27,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:53:27,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:27,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-16 04:53:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:27,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 04:53:27,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:27,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-16 04:53:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:27,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 04:53:27,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:27,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 04:53:27,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:27,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-16 04:53:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:27,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-16 04:53:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:27,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-16 04:53:27,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:27,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-16 04:53:27,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:27,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-16 04:53:27,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:53:27,113 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2021-12-16 04:53:27,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:53:27,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390855699] [2021-12-16 04:53:27,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390855699] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:53:27,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:53:27,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 04:53:27,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384091074] [2021-12-16 04:53:27,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:53:27,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 04:53:27,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:53:27,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 04:53:27,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:53:27,116 INFO L87 Difference]: Start difference. First operand 29546 states and 41007 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-16 04:53:33,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:53:33,143 INFO L93 Difference]: Finished difference Result 91370 states and 127975 transitions. [2021-12-16 04:53:33,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 04:53:33,144 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 167 [2021-12-16 04:53:33,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:53:33,437 INFO L225 Difference]: With dead ends: 91370 [2021-12-16 04:53:33,437 INFO L226 Difference]: Without dead ends: 61843 [2021-12-16 04:53:33,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-16 04:53:33,564 INFO L933 BasicCegarLoop]: 2681 mSDtfsCounter, 3035 mSDsluCounter, 3575 mSDsCounter, 0 mSdLazyCounter, 2683 mSolverCounterSat, 2352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3427 SdHoareTripleChecker+Valid, 6256 SdHoareTripleChecker+Invalid, 5035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2352 IncrementalHoareTripleChecker+Valid, 2683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-12-16 04:53:33,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3427 Valid, 6256 Invalid, 5035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2352 Valid, 2683 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2021-12-16 04:53:33,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61843 states. [2021-12-16 04:53:35,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61843 to 57803.