./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-ethernet-fealnx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.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 3d612e3d3aaa54cbaaae78896c02f6ca9c3968df93584b0bde88897a60cfa04a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 07:55:26,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 07:55:26,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 07:55:26,353 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 07:55:26,353 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 07:55:26,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 07:55:26,358 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 07:55:26,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 07:55:26,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 07:55:26,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 07:55:26,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 07:55:26,368 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 07:55:26,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 07:55:26,370 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 07:55:26,371 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 07:55:26,374 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 07:55:26,375 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 07:55:26,376 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 07:55:26,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 07:55:26,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 07:55:26,385 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 07:55:26,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 07:55:26,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 07:55:26,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 07:55:26,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 07:55:26,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 07:55:26,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 07:55:26,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 07:55:26,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 07:55:26,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 07:55:26,398 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 07:55:26,399 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 07:55:26,400 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 07:55:26,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 07:55:26,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 07:55:26,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 07:55:26,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 07:55:26,403 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 07:55:26,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 07:55:26,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 07:55:26,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 07:55:26,406 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 07:55:26,437 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 07:55:26,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 07:55:26,438 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 07:55:26,438 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 07:55:26,439 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 07:55:26,439 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 07:55:26,440 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 07:55:26,440 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 07:55:26,440 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 07:55:26,440 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 07:55:26,441 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 07:55:26,441 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 07:55:26,441 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 07:55:26,442 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 07:55:26,442 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 07:55:26,442 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 07:55:26,442 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 07:55:26,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 07:55:26,443 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 07:55:26,443 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 07:55:26,443 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 07:55:26,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 07:55:26,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 07:55:26,444 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 07:55:26,444 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 07:55:26,444 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 07:55:26,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 07:55:26,444 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 07:55:26,444 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 07:55:26,445 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 07:55:26,445 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 07:55:26,445 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d612e3d3aaa54cbaaae78896c02f6ca9c3968df93584b0bde88897a60cfa04a [2021-11-17 07:55:26,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 07:55:26,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 07:55:26,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 07:55:26,723 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 07:55:26,724 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 07:55:26,725 INFO L432 ainManager$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-ethernet-fealnx.cil.i [2021-11-17 07:55:26,777 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f4c98fc0/93e0177839c244b5b0ba12ca3011e156/FLAG8e462fe00 [2021-11-17 07:55:27,524 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 07:55:27,524 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-ethernet-fealnx.cil.i [2021-11-17 07:55:27,584 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f4c98fc0/93e0177839c244b5b0ba12ca3011e156/FLAG8e462fe00 [2021-11-17 07:55:27,752 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f4c98fc0/93e0177839c244b5b0ba12ca3011e156 [2021-11-17 07:55:27,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 07:55:27,756 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 07:55:27,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 07:55:27,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 07:55:27,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 07:55:27,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:55:27" (1/1) ... [2021-11-17 07:55:27,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14287b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:55:27, skipping insertion in model container [2021-11-17 07:55:27,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:55:27" (1/1) ... [2021-11-17 07:55:27,782 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 07:55:27,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 07:55:29,784 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-ethernet-fealnx.cil.i[319618,319631] [2021-11-17 07:55:29,787 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-ethernet-fealnx.cil.i[319787,319800] [2021-11-17 07:55:29,788 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-ethernet-fealnx.cil.i[319954,319967] [2021-11-17 07:55:29,788 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-ethernet-fealnx.cil.i[320122,320135] [2021-11-17 07:55:29,815 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 07:55:29,857 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 07:55:30,149 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-ethernet-fealnx.cil.i[319618,319631] [2021-11-17 07:55:30,150 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-ethernet-fealnx.cil.i[319787,319800] [2021-11-17 07:55:30,150 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-ethernet-fealnx.cil.i[319954,319967] [2021-11-17 07:55:30,150 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-ethernet-fealnx.cil.i[320122,320135] [2021-11-17 07:55:30,158 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 07:55:30,301 INFO L208 MainTranslator]: Completed translation [2021-11-17 07:55:30,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:55:30 WrapperNode [2021-11-17 07:55:30,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 07:55:30,303 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 07:55:30,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 07:55:30,304 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 07:55:30,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:55:30" (1/1) ... [2021-11-17 07:55:30,404 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:55:30" (1/1) ... [2021-11-17 07:55:30,557 INFO L137 Inliner]: procedures = 434, calls = 1806, calls flagged for inlining = 214, calls inlined = 197, statements flattened = 4285 [2021-11-17 07:55:30,557 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 07:55:30,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 07:55:30,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 07:55:30,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 07:55:30,566 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:55:30" (1/1) ... [2021-11-17 07:55:30,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:55:30" (1/1) ... [2021-11-17 07:55:30,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:55:30" (1/1) ... [2021-11-17 07:55:30,597 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:55:30" (1/1) ... [2021-11-17 07:55:30,745 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:55:30" (1/1) ... [2021-11-17 07:55:30,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:55:30" (1/1) ... [2021-11-17 07:55:30,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:55:30" (1/1) ... [2021-11-17 07:55:30,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 07:55:30,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 07:55:30,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 07:55:30,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 07:55:30,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:55:30" (1/1) ... [2021-11-17 07:55:30,846 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 07:55:30,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 07:55:30,872 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 07:55:30,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 07:55:30,908 INFO L130 BoogieDeclarations]: Found specification of procedure getlinkstatus [2021-11-17 07:55:30,908 INFO L138 BoogieDeclarations]: Found implementation of procedure getlinkstatus [2021-11-17 07:55:30,909 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-11-17 07:55:30,909 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-11-17 07:55:30,909 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-17 07:55:30,909 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-17 07:55:30,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 07:55:30,909 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 07:55:30,910 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-17 07:55:30,910 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-17 07:55:30,910 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-17 07:55:30,910 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-17 07:55:30,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 07:55:30,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 07:55:30,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-17 07:55:30,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-17 07:55:30,911 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-17 07:55:30,911 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-17 07:55:30,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_79 [2021-11-17 07:55:30,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_79 [2021-11-17 07:55:30,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_67 [2021-11-17 07:55:30,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_67 [2021-11-17 07:55:30,912 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-17 07:55:30,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-17 07:55:30,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-17 07:55:30,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-17 07:55:30,912 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-17 07:55:30,912 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-17 07:55:30,913 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-17 07:55:30,913 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-17 07:55:30,913 INFO L130 BoogieDeclarations]: Found specification of procedure fealnx_tx_timeout [2021-11-17 07:55:30,913 INFO L138 BoogieDeclarations]: Found implementation of procedure fealnx_tx_timeout [2021-11-17 07:55:30,914 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-17 07:55:30,914 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-17 07:55:30,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 07:55:30,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 07:55:30,914 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-17 07:55:30,914 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-17 07:55:30,915 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2021-11-17 07:55:30,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2021-11-17 07:55:30,915 INFO L130 BoogieDeclarations]: Found specification of procedure getlinktype [2021-11-17 07:55:30,915 INFO L138 BoogieDeclarations]: Found implementation of procedure getlinktype [2021-11-17 07:55:30,915 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-17 07:55:30,916 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-17 07:55:30,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 07:55:30,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-17 07:55:30,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-17 07:55:30,916 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 07:55:30,917 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 07:55:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 07:55:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure reset_rx_descriptors [2021-11-17 07:55:30,918 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_rx_descriptors [2021-11-17 07:55:30,918 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-17 07:55:30,918 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-17 07:55:30,919 INFO L130 BoogieDeclarations]: Found specification of procedure fealnx_remove_one [2021-11-17 07:55:30,919 INFO L138 BoogieDeclarations]: Found implementation of procedure fealnx_remove_one [2021-11-17 07:55:30,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 07:55:30,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-17 07:55:30,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-17 07:55:30,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 07:55:30,920 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-11-17 07:55:30,920 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-11-17 07:55:30,920 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-17 07:55:30,920 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-17 07:55:30,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-17 07:55:30,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-17 07:55:30,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-17 07:55:30,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-17 07:55:30,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-17 07:55:30,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-17 07:55:30,922 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-17 07:55:30,922 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-17 07:55:30,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-17 07:55:30,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-17 07:55:30,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 07:55:30,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-17 07:55:30,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-17 07:55:30,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-17 07:55:30,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-17 07:55:30,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 07:55:30,923 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2021-11-17 07:55:30,923 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2021-11-17 07:55:30,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 07:55:30,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 07:55:30,924 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 07:55:30,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 07:55:30,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 07:55:30,925 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 07:55:30,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 07:55:30,926 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-17 07:55:30,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-17 07:55:30,926 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-17 07:55:30,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-17 07:55:30,926 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-17 07:55:30,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-17 07:55:30,927 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 07:55:30,927 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 07:55:30,927 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-17 07:55:30,927 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-17 07:55:30,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-17 07:55:30,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-17 07:55:30,927 INFO L130 BoogieDeclarations]: Found specification of procedure stop_nic_rx [2021-11-17 07:55:30,928 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_nic_rx [2021-11-17 07:55:30,928 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-11-17 07:55:30,928 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-11-17 07:55:30,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 07:55:30,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 07:55:30,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 07:55:30,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 07:55:30,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 07:55:30,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 07:55:30,930 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2021-11-17 07:55:30,930 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2021-11-17 07:55:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-17 07:55:30,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-17 07:55:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-17 07:55:30,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-17 07:55:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_netdev_private [2021-11-17 07:55:30,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_netdev_private [2021-11-17 07:55:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure enable_rxtx [2021-11-17 07:55:30,934 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_rxtx [2021-11-17 07:55:30,935 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-17 07:55:30,939 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-17 07:55:30,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 07:55:30,939 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 07:55:30,939 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-17 07:55:30,939 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-17 07:55:30,940 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-17 07:55:30,940 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-17 07:55:30,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_78 [2021-11-17 07:55:30,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_78 [2021-11-17 07:55:30,941 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-17 07:55:30,941 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-17 07:55:30,941 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-17 07:55:30,941 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-17 07:55:30,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 07:55:30,941 INFO L130 BoogieDeclarations]: Found specification of procedure reset_and_disable_rxtx [2021-11-17 07:55:30,941 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_and_disable_rxtx [2021-11-17 07:55:30,942 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-17 07:55:30,942 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-17 07:55:30,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 07:55:30,942 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-17 07:55:30,942 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-17 07:55:30,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 07:55:30,942 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-17 07:55:30,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-17 07:55:30,943 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 07:55:30,943 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 07:55:30,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_netdev_private [2021-11-17 07:55:30,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_netdev_private [2021-11-17 07:55:30,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-17 07:55:30,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-17 07:55:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2021-11-17 07:55:30,944 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2021-11-17 07:55:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-17 07:55:30,944 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-17 07:55:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-17 07:55:30,944 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-17 07:55:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-17 07:55:30,945 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-17 07:55:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure stop_nic_rxtx [2021-11-17 07:55:30,945 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_nic_rxtx [2021-11-17 07:55:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure m80x_send_cmd_to_phy [2021-11-17 07:55:30,945 INFO L138 BoogieDeclarations]: Found implementation of procedure m80x_send_cmd_to_phy [2021-11-17 07:55:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 07:55:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffers [2021-11-17 07:55:30,946 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffers [2021-11-17 07:55:30,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 07:55:30,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 07:55:30,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-17 07:55:30,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-17 07:55:30,946 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-17 07:55:30,946 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-17 07:55:30,946 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-17 07:55:30,947 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-17 07:55:30,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 07:55:30,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-17 07:55:30,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-17 07:55:30,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_fealnx_exit_14_2 [2021-11-17 07:55:30,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_fealnx_exit_14_2 [2021-11-17 07:55:31,622 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 07:55:31,625 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 07:55:32,145 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 07:55:33,899 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-17 07:55:33,959 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 07:55:33,982 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 07:55:33,984 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-17 07:55:33,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 07:55:33 BoogieIcfgContainer [2021-11-17 07:55:33,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 07:55:33,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 07:55:33,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 07:55:33,993 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 07:55:33,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:55:27" (1/3) ... [2021-11-17 07:55:33,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ae67e28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:55:33, skipping insertion in model container [2021-11-17 07:55:33,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:55:30" (2/3) ... [2021-11-17 07:55:33,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ae67e28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:55:33, skipping insertion in model container [2021-11-17 07:55:33,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 07:55:33" (3/3) ... [2021-11-17 07:55:33,995 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i [2021-11-17 07:55:33,999 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 07:55:33,999 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-17 07:55:34,057 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 07:55:34,071 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 07:55:34,071 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-17 07:55:34,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 1564 states, 1091 states have (on average 1.2768102658111824) internal successors, (1393), 1112 states have internal predecessors, (1393), 389 states have call successors, (389), 82 states have call predecessors, (389), 81 states have return successors, (383), 380 states have call predecessors, (383), 383 states have call successors, (383) [2021-11-17 07:55:34,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-17 07:55:34,145 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:55:34,146 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:55:34,147 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:55:34,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:55:34,152 INFO L85 PathProgramCache]: Analyzing trace with hash 11578464, now seen corresponding path program 1 times [2021-11-17 07:55:34,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:55:34,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205338829] [2021-11-17 07:55:34,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:55:34,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:55:34,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:34,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:55:34,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:34,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:34,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:34,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:55:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:34,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:34,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:34,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:55:34,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:34,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:34,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:55:34,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:34,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:34,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:55:34,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:34,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:34,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:34,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:55:34,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:34,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:34,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:55:34,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:34,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:34,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:55:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:34,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:34,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:55:34,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:34,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:34,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 07:55:34,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:34,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 07:55:34,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:34,853 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-17 07:55:34,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:55:34,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205338829] [2021-11-17 07:55:34,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205338829] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:55:34,854 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:55:34,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:55:34,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152953146] [2021-11-17 07:55:34,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:55:34,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:55:34,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:55:34,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:55:34,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:55:34,885 INFO L87 Difference]: Start difference. First operand has 1564 states, 1091 states have (on average 1.2768102658111824) internal successors, (1393), 1112 states have internal predecessors, (1393), 389 states have call successors, (389), 82 states have call predecessors, (389), 81 states have return successors, (383), 380 states have call predecessors, (383), 383 states have call successors, (383) Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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) [2021-11-17 07:55:38,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:55:38,028 INFO L93 Difference]: Finished difference Result 4647 states and 6595 transitions. [2021-11-17 07:55:38,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:55:38,031 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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 127 [2021-11-17 07:55:38,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:55:38,063 INFO L225 Difference]: With dead ends: 4647 [2021-11-17 07:55:38,064 INFO L226 Difference]: Without dead ends: 3096 [2021-11-17 07:55:38,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:55:38,083 INFO L933 BasicCegarLoop]: 2251 mSDtfsCounter, 2779 mSDsluCounter, 2277 mSDsCounter, 0 mSdLazyCounter, 1458 mSolverCounterSat, 1140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3120 SdHoareTripleChecker+Valid, 4528 SdHoareTripleChecker+Invalid, 2598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1140 IncrementalHoareTripleChecker+Valid, 1458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-17 07:55:38,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3120 Valid, 4528 Invalid, 2598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1140 Valid, 1458 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-17 07:55:38,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3096 states. [2021-11-17 07:55:38,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3096 to 2996. [2021-11-17 07:55:38,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2996 states, 2111 states have (on average 1.2695405021316912) internal successors, (2680), 2152 states have internal predecessors, (2680), 724 states have call successors, (724), 159 states have call predecessors, (724), 158 states have return successors, (720), 714 states have call predecessors, (720), 720 states have call successors, (720) [2021-11-17 07:55:38,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2996 states to 2996 states and 4124 transitions. [2021-11-17 07:55:38,375 INFO L78 Accepts]: Start accepts. Automaton has 2996 states and 4124 transitions. Word has length 127 [2021-11-17 07:55:38,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:55:38,377 INFO L470 AbstractCegarLoop]: Abstraction has 2996 states and 4124 transitions. [2021-11-17 07:55:38,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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) [2021-11-17 07:55:38,377 INFO L276 IsEmpty]: Start isEmpty. Operand 2996 states and 4124 transitions. [2021-11-17 07:55:38,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-17 07:55:38,383 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:55:38,384 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:55:38,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 07:55:38,385 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:55:38,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:55:38,386 INFO L85 PathProgramCache]: Analyzing trace with hash -94211857, now seen corresponding path program 1 times [2021-11-17 07:55:38,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:55:38,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531732408] [2021-11-17 07:55:38,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:55:38,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:55:38,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:38,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:55:38,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:38,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:38,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:38,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:55:38,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:38,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:38,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:38,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:55:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:38,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:38,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:55:38,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:38,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:38,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:38,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:55:38,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:38,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:38,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:38,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:55:38,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:38,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:38,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:38,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:55:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:38,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:38,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:38,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:55:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:38,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:38,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:38,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:55:38,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:38,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:38,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 07:55:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:38,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 07:55:38,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:38,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-11-17 07:55:38,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:38,698 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-17 07:55:38,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:55:38,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531732408] [2021-11-17 07:55:38,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531732408] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:55:38,699 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:55:38,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:55:38,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397081970] [2021-11-17 07:55:38,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:55:38,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:55:38,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:55:38,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:55:38,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:55:38,702 INFO L87 Difference]: Start difference. First operand 2996 states and 4124 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-17 07:55:41,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:55:41,602 INFO L93 Difference]: Finished difference Result 8638 states and 11911 transitions. [2021-11-17 07:55:41,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:55:41,603 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 129 [2021-11-17 07:55:41,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:55:41,642 INFO L225 Difference]: With dead ends: 8638 [2021-11-17 07:55:41,642 INFO L226 Difference]: Without dead ends: 5665 [2021-11-17 07:55:41,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:55:41,662 INFO L933 BasicCegarLoop]: 2305 mSDtfsCounter, 2464 mSDsluCounter, 2341 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 1128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2757 SdHoareTripleChecker+Valid, 4646 SdHoareTripleChecker+Invalid, 2492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1128 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-17 07:55:41,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2757 Valid, 4646 Invalid, 2492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1128 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-17 07:55:41,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5665 states. [2021-11-17 07:55:41,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5665 to 5467. [2021-11-17 07:55:41,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5467 states, 3842 states have (on average 1.2631441957313898) internal successors, (4853), 3922 states have internal predecessors, (4853), 1309 states have call successors, (1309), 308 states have call predecessors, (1309), 313 states have return successors, (1337), 1284 states have call predecessors, (1337), 1305 states have call successors, (1337) [2021-11-17 07:55:41,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5467 states to 5467 states and 7499 transitions. [2021-11-17 07:55:41,931 INFO L78 Accepts]: Start accepts. Automaton has 5467 states and 7499 transitions. Word has length 129 [2021-11-17 07:55:41,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:55:41,933 INFO L470 AbstractCegarLoop]: Abstraction has 5467 states and 7499 transitions. [2021-11-17 07:55:41,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-17 07:55:41,934 INFO L276 IsEmpty]: Start isEmpty. Operand 5467 states and 7499 transitions. [2021-11-17 07:55:41,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-17 07:55:41,940 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:55:41,940 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:55:41,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 07:55:41,941 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)] === [2021-11-17 07:55:41,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:55:41,942 INFO L85 PathProgramCache]: Analyzing trace with hash 305562421, now seen corresponding path program 1 times [2021-11-17 07:55:41,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:55:41,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064253175] [2021-11-17 07:55:41,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:55:41,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:55:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:42,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:55:42,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:42,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:42,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:42,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:55:42,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:42,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:42,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:42,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:55:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:42,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:42,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:42,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:55:42,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:42,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:42,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:42,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:55:42,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:42,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:42,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:42,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:55:42,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:42,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:42,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:55:42,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:42,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:42,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:55:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:42,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:42,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:42,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:55:42,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:42,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:42,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 07:55:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:42,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 07:55:42,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:42,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 07:55:42,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:42,301 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-17 07:55:42,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:55:42,301 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064253175] [2021-11-17 07:55:42,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064253175] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:55:42,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:55:42,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:55:42,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576394722] [2021-11-17 07:55:42,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:55:42,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:55:42,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:55:42,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:55:42,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:55:42,304 INFO L87 Difference]: Start difference. First operand 5467 states and 7499 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-17 07:55:45,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:55:45,161 INFO L93 Difference]: Finished difference Result 16349 states and 22494 transitions. [2021-11-17 07:55:45,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:55:45,162 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 132 [2021-11-17 07:55:45,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:55:45,223 INFO L225 Difference]: With dead ends: 16349 [2021-11-17 07:55:45,223 INFO L226 Difference]: Without dead ends: 10905 [2021-11-17 07:55:45,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:55:45,248 INFO L933 BasicCegarLoop]: 2513 mSDtfsCounter, 2527 mSDsluCounter, 2357 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 1114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2844 SdHoareTripleChecker+Valid, 4870 SdHoareTripleChecker+Invalid, 2479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1114 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-17 07:55:45,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2844 Valid, 4870 Invalid, 2479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1114 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-17 07:55:45,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10905 states. [2021-11-17 07:55:45,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10905 to 10525. [2021-11-17 07:55:45,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10525 states, 7436 states have (on average 1.2658687466379774) internal successors, (9413), 7598 states have internal predecessors, (9413), 2479 states have call successors, (2479), 608 states have call predecessors, (2479), 607 states have return successors, (2539), 2414 states have call predecessors, (2539), 2475 states have call successors, (2539) [2021-11-17 07:55:45,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10525 states to 10525 states and 14431 transitions. [2021-11-17 07:55:45,692 INFO L78 Accepts]: Start accepts. Automaton has 10525 states and 14431 transitions. Word has length 132 [2021-11-17 07:55:45,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:55:45,692 INFO L470 AbstractCegarLoop]: Abstraction has 10525 states and 14431 transitions. [2021-11-17 07:55:45,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-17 07:55:45,695 INFO L276 IsEmpty]: Start isEmpty. Operand 10525 states and 14431 transitions. [2021-11-17 07:55:45,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-17 07:55:45,698 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:55:45,698 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:55:45,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 07:55:45,699 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)] === [2021-11-17 07:55:45,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:55:45,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1460878253, now seen corresponding path program 1 times [2021-11-17 07:55:45,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:55:45,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918567997] [2021-11-17 07:55:45,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:55:45,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:55:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:45,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:55:45,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:45,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:45,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:45,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:55:45,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:45,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:45,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:45,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:55:45,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:45,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:45,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:55:45,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:45,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:45,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:45,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:55:45,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:45,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:45,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:45,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:55:45,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:45,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:45,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:55:45,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:45,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:45,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:45,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:55:45,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:45,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:45,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:45,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:55:45,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:45,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:45,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:45,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 07:55:45,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:45,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 07:55:45,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:45,919 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-17 07:55:45,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:55:45,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918567997] [2021-11-17 07:55:45,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918567997] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:55:45,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:55:45,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:55:45,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396379965] [2021-11-17 07:55:45,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:55:45,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:55:45,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:55:45,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:55:45,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:55:45,922 INFO L87 Difference]: Start difference. First operand 10525 states and 14431 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-17 07:55:49,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:55:49,040 INFO L93 Difference]: Finished difference Result 30661 states and 42226 transitions. [2021-11-17 07:55:49,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:55:49,041 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 134 [2021-11-17 07:55:49,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:55:49,150 INFO L225 Difference]: With dead ends: 30661 [2021-11-17 07:55:49,150 INFO L226 Difference]: Without dead ends: 20159 [2021-11-17 07:55:49,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:55:49,199 INFO L933 BasicCegarLoop]: 2210 mSDtfsCounter, 2530 mSDsluCounter, 2256 mSDsCounter, 0 mSdLazyCounter, 1462 mSolverCounterSat, 1167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2847 SdHoareTripleChecker+Valid, 4466 SdHoareTripleChecker+Invalid, 2629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1167 IncrementalHoareTripleChecker+Valid, 1462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-17 07:55:49,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2847 Valid, 4466 Invalid, 2629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1167 Valid, 1462 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-17 07:55:49,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20159 states. [2021-11-17 07:55:49,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20159 to 19427. [2021-11-17 07:55:49,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19427 states, 13610 states have (on average 1.266936076414401) internal successors, (17243), 13924 states have internal predecessors, (17243), 4645 states have call successors, (4645), 1174 states have call predecessors, (4645), 1169 states have return successors, (4769), 4504 states have call predecessors, (4769), 4641 states have call successors, (4769) [2021-11-17 07:55:50,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19427 states to 19427 states and 26657 transitions. [2021-11-17 07:55:50,017 INFO L78 Accepts]: Start accepts. Automaton has 19427 states and 26657 transitions. Word has length 134 [2021-11-17 07:55:50,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:55:50,019 INFO L470 AbstractCegarLoop]: Abstraction has 19427 states and 26657 transitions. [2021-11-17 07:55:50,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-17 07:55:50,020 INFO L276 IsEmpty]: Start isEmpty. Operand 19427 states and 26657 transitions. [2021-11-17 07:55:50,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-17 07:55:50,022 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:55:50,022 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:55:50,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 07:55:50,022 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:55:50,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:55:50,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1833140722, now seen corresponding path program 1 times [2021-11-17 07:55:50,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:55:50,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011278447] [2021-11-17 07:55:50,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:55:50,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:55:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:50,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:55:50,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:50,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:50,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:50,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:55:50,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:50,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:50,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:50,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:55:50,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:50,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:50,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:55:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:50,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:50,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:50,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:55:50,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:50,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:50,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:55:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:50,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:50,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:50,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:55:50,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:50,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:50,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:50,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:55:50,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:50,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:50,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:50,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:55:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:50,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:50,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:50,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 07:55:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:50,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 07:55:50,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:50,275 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-17 07:55:50,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:55:50,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011278447] [2021-11-17 07:55:50,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011278447] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:55:50,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:55:50,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 07:55:50,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059499066] [2021-11-17 07:55:50,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:55:50,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 07:55:50,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:55:50,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 07:55:50,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-17 07:55:50,278 INFO L87 Difference]: Start difference. First operand 19427 states and 26657 transitions. Second operand has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-17 07:55:55,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:55:55,131 INFO L93 Difference]: Finished difference Result 41934 states and 57341 transitions. [2021-11-17 07:55:55,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 07:55:55,132 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 134 [2021-11-17 07:55:55,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:55:55,224 INFO L225 Difference]: With dead ends: 41934 [2021-11-17 07:55:55,225 INFO L226 Difference]: Without dead ends: 22530 [2021-11-17 07:55:55,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-17 07:55:55,295 INFO L933 BasicCegarLoop]: 2796 mSDtfsCounter, 5091 mSDsluCounter, 3626 mSDsCounter, 0 mSdLazyCounter, 4641 mSolverCounterSat, 1991 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5694 SdHoareTripleChecker+Valid, 6422 SdHoareTripleChecker+Invalid, 6632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1991 IncrementalHoareTripleChecker+Valid, 4641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-11-17 07:55:55,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5694 Valid, 6422 Invalid, 6632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1991 Valid, 4641 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2021-11-17 07:55:55,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22530 states. [2021-11-17 07:55:56,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22530 to 21479. [2021-11-17 07:55:56,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21479 states, 15105 states have (on average 1.2533598146309168) internal successors, (18932), 15459 states have internal predecessors, (18932), 4989 states have call successors, (4989), 1410 states have call predecessors, (4989), 1382 states have return successors, (5049), 4800 states have call predecessors, (5049), 4985 states have call successors, (5049) [2021-11-17 07:55:56,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21479 states to 21479 states and 28970 transitions. [2021-11-17 07:55:56,164 INFO L78 Accepts]: Start accepts. Automaton has 21479 states and 28970 transitions. Word has length 134 [2021-11-17 07:55:56,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:55:56,165 INFO L470 AbstractCegarLoop]: Abstraction has 21479 states and 28970 transitions. [2021-11-17 07:55:56,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-17 07:55:56,167 INFO L276 IsEmpty]: Start isEmpty. Operand 21479 states and 28970 transitions. [2021-11-17 07:55:56,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-17 07:55:56,169 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:55:56,169 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 9, 9, 9, 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] [2021-11-17 07:55:56,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 07:55:56,170 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:55:56,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:55:56,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1457727249, now seen corresponding path program 1 times [2021-11-17 07:55:56,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:55:56,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088807122] [2021-11-17 07:55:56,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:55:56,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:55:56,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:56,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:55:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:56,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:56,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:56,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:55:56,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:56,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:56,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:56,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:55:56,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:56,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:56,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:56,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:55:56,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:56,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:56,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:56,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:55:56,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:56,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:56,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:56,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:55:56,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:56,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:56,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:56,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:55:56,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:56,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:56,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:56,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:55:56,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:56,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:56,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:55:56,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:56,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:56,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:56,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 07:55:56,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:56,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 07:55:56,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:56,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 07:55:56,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:56,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-17 07:55:56,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:56,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 07:55:56,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:56,406 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2021-11-17 07:55:56,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:55:56,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088807122] [2021-11-17 07:55:56,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088807122] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:55:56,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:55:56,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:55:56,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047801666] [2021-11-17 07:55:56,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:55:56,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:55:56,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:55:56,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:55:56,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:55:56,409 INFO L87 Difference]: Start difference. First operand 21479 states and 28970 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-17 07:55:59,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:55:59,555 INFO L93 Difference]: Finished difference Result 65105 states and 88210 transitions. [2021-11-17 07:55:59,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:55:59,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 155 [2021-11-17 07:55:59,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:55:59,773 INFO L225 Difference]: With dead ends: 65105 [2021-11-17 07:55:59,773 INFO L226 Difference]: Without dead ends: 43649 [2021-11-17 07:55:59,860 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 [2021-11-17 07:55:59,861 INFO L933 BasicCegarLoop]: 2521 mSDtfsCounter, 2646 mSDsluCounter, 2363 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 1130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2996 SdHoareTripleChecker+Valid, 4884 SdHoareTripleChecker+Invalid, 2584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1130 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-17 07:55:59,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2996 Valid, 4884 Invalid, 2584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1130 Valid, 1454 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-17 07:55:59,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43649 states. [2021-11-17 07:56:01,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43649 to 41747. [2021-11-17 07:56:01,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41747 states, 29327 states have (on average 1.2532819586046988) internal successors, (36755), 30063 states have internal predecessors, (36755), 9726 states have call successors, (9726), 2746 states have call predecessors, (9726), 2691 states have return successors, (9850), 9315 states have call predecessors, (9850), 9722 states have call successors, (9850) [2021-11-17 07:56:01,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41747 states to 41747 states and 56331 transitions. [2021-11-17 07:56:01,561 INFO L78 Accepts]: Start accepts. Automaton has 41747 states and 56331 transitions. Word has length 155 [2021-11-17 07:56:01,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:56:01,562 INFO L470 AbstractCegarLoop]: Abstraction has 41747 states and 56331 transitions. [2021-11-17 07:56:01,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-17 07:56:01,562 INFO L276 IsEmpty]: Start isEmpty. Operand 41747 states and 56331 transitions. [2021-11-17 07:56:01,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-11-17 07:56:01,564 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:56:01,565 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1] [2021-11-17 07:56:01,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 07:56:01,566 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:56:01,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:56:01,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1944694420, now seen corresponding path program 1 times [2021-11-17 07:56:01,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:56:01,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100195671] [2021-11-17 07:56:01,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:56:01,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:56:01,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:01,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:56:01,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:01,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:01,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:56:01,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:01,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:02,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:56:02,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:02,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:02,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:02,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:56:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:02,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:02,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:02,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:56:02,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:02,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:02,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:02,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:56:02,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:02,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:02,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:02,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:56:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:02,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:02,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:56:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:02,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:02,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:02,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:56:02,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:02,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:02,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:02,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 07:56:02,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:02,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 07:56:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:02,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 07:56:02,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:02,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 07:56:02,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:02,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 07:56:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:02,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:02,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:02,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 07:56:02,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:02,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 07:56:02,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:02,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 07:56:02,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:02,107 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2021-11-17 07:56:02,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:56:02,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100195671] [2021-11-17 07:56:02,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100195671] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:56:02,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:56:02,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:56:02,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520985859] [2021-11-17 07:56:02,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:56:02,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:56:02,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:56:02,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:56:02,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:56:02,109 INFO L87 Difference]: Start difference. First operand 41747 states and 56331 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-17 07:56:06,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:56:06,191 INFO L93 Difference]: Finished difference Result 126045 states and 170713 transitions. [2021-11-17 07:56:06,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:56:06,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 183 [2021-11-17 07:56:06,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:56:06,634 INFO L225 Difference]: With dead ends: 126045 [2021-11-17 07:56:06,634 INFO L226 Difference]: Without dead ends: 84377 [2021-11-17 07:56:06,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:56:06,776 INFO L933 BasicCegarLoop]: 2624 mSDtfsCounter, 2573 mSDsluCounter, 2447 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 1045 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2909 SdHoareTripleChecker+Valid, 5071 SdHoareTripleChecker+Invalid, 2491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1045 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-17 07:56:06,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2909 Valid, 5071 Invalid, 2491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1045 Valid, 1446 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-17 07:56:06,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84377 states. [2021-11-17 07:56:09,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84377 to 80717. [2021-11-17 07:56:09,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80717 states, 56931 states have (on average 1.2524108130895295) internal successors, (71301), 58177 states have internal predecessors, (71301), 18562 states have call successors, (18562), 5298 states have call predecessors, (18562), 5221 states have return successors, (18814), 17997 states have call predecessors, (18814), 18558 states have call successors, (18814) [2021-11-17 07:56:10,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80717 states to 80717 states and 108677 transitions. [2021-11-17 07:56:10,189 INFO L78 Accepts]: Start accepts. Automaton has 80717 states and 108677 transitions. Word has length 183 [2021-11-17 07:56:10,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:56:10,190 INFO L470 AbstractCegarLoop]: Abstraction has 80717 states and 108677 transitions. [2021-11-17 07:56:10,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-17 07:56:10,190 INFO L276 IsEmpty]: Start isEmpty. Operand 80717 states and 108677 transitions. [2021-11-17 07:56:10,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-11-17 07:56:10,193 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:56:10,193 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1] [2021-11-17 07:56:10,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 07:56:10,193 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:56:10,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:56:10,194 INFO L85 PathProgramCache]: Analyzing trace with hash 2085243030, now seen corresponding path program 1 times [2021-11-17 07:56:10,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:56:10,194 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622968330] [2021-11-17 07:56:10,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:56:10,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:56:10,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:10,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:56:10,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:10,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:10,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:10,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:56:10,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:10,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:10,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:56:10,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:10,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:10,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:10,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:56:10,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:10,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:10,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:10,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:56:10,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:10,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:10,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:10,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:56:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:10,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:10,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:10,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:56:10,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:10,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:10,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:56:10,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:10,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:10,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:10,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:56:10,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:10,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:10,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:10,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 07:56:10,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:10,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 07:56:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:10,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 07:56:10,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:10,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 07:56:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:10,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 07:56:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:10,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:10,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:10,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 07:56:10,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:10,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 07:56:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:10,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 07:56:10,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:10,543 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2021-11-17 07:56:10,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:56:10,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622968330] [2021-11-17 07:56:10,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622968330] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:56:10,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:56:10,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:56:10,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759151539] [2021-11-17 07:56:10,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:56:10,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:56:10,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:56:10,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:56:10,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:56:10,545 INFO L87 Difference]: Start difference. First operand 80717 states and 108677 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 07:56:14,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:56:14,168 INFO L93 Difference]: Finished difference Result 84379 states and 114239 transitions. [2021-11-17 07:56:14,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:56:14,169 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 183 [2021-11-17 07:56:14,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:56:14,507 INFO L225 Difference]: With dead ends: 84379 [2021-11-17 07:56:14,507 INFO L226 Difference]: Without dead ends: 84377 [2021-11-17 07:56:14,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:56:14,552 INFO L933 BasicCegarLoop]: 1988 mSDtfsCounter, 2250 mSDsluCounter, 3776 mSDsCounter, 0 mSdLazyCounter, 1743 mSolverCounterSat, 822 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2459 SdHoareTripleChecker+Valid, 5764 SdHoareTripleChecker+Invalid, 2565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 822 IncrementalHoareTripleChecker+Valid, 1743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-17 07:56:14,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2459 Valid, 5764 Invalid, 2565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [822 Valid, 1743 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-17 07:56:14,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84377 states. [2021-11-17 07:56:16,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84377 to 80721. [2021-11-17 07:56:16,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80721 states, 56934 states have (on average 1.252397512909685) internal successors, (71304), 58180 states have internal predecessors, (71304), 18562 states have call successors, (18562), 5299 states have call predecessors, (18562), 5222 states have return successors, (18814), 17997 states have call predecessors, (18814), 18558 states have call successors, (18814) [2021-11-17 07:56:17,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80721 states to 80721 states and 108680 transitions. [2021-11-17 07:56:17,286 INFO L78 Accepts]: Start accepts. Automaton has 80721 states and 108680 transitions. Word has length 183 [2021-11-17 07:56:17,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:56:17,287 INFO L470 AbstractCegarLoop]: Abstraction has 80721 states and 108680 transitions. [2021-11-17 07:56:17,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 07:56:17,287 INFO L276 IsEmpty]: Start isEmpty. Operand 80721 states and 108680 transitions. [2021-11-17 07:56:17,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-17 07:56:17,290 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:56:17,290 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 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] [2021-11-17 07:56:17,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 07:56:17,291 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:56:17,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:56:17,291 INFO L85 PathProgramCache]: Analyzing trace with hash 581128741, now seen corresponding path program 1 times [2021-11-17 07:56:17,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:56:17,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11309520] [2021-11-17 07:56:17,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:56:17,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:56:17,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:17,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:56:17,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:17,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:17,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:17,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:56:17,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:17,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:17,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:17,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:56:17,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:17,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:17,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:17,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:56:17,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:17,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:17,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:17,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:56:17,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:17,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:17,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:17,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:56:17,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:17,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:17,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:17,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:56:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:17,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:17,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:17,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:56:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:17,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:17,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:17,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:56:17,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:17,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:17,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:17,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 07:56:17,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:17,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 07:56:17,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:17,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 07:56:17,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:17,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 07:56:17,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:17,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 07:56:17,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:17,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:17,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:17,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 07:56:17,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:17,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 07:56:17,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:17,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 07:56:17,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:17,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 07:56:17,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:17,629 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2021-11-17 07:56:17,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:56:17,630 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11309520] [2021-11-17 07:56:17,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11309520] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:56:17,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:56:17,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:56:17,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719683625] [2021-11-17 07:56:17,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:56:17,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:56:17,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:56:17,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:56:17,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:56:17,632 INFO L87 Difference]: Start difference. First operand 80721 states and 108680 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 07:56:21,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:56:21,198 INFO L93 Difference]: Finished difference Result 84383 states and 114242 transitions. [2021-11-17 07:56:21,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:56:21,199 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 188 [2021-11-17 07:56:21,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:56:21,461 INFO L225 Difference]: With dead ends: 84383 [2021-11-17 07:56:21,462 INFO L226 Difference]: Without dead ends: 84381 [2021-11-17 07:56:21,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:56:21,641 INFO L933 BasicCegarLoop]: 1990 mSDtfsCounter, 2242 mSDsluCounter, 3773 mSDsCounter, 0 mSdLazyCounter, 1743 mSolverCounterSat, 821 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2452 SdHoareTripleChecker+Valid, 5763 SdHoareTripleChecker+Invalid, 2564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 821 IncrementalHoareTripleChecker+Valid, 1743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-17 07:56:21,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2452 Valid, 5763 Invalid, 2564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [821 Valid, 1743 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-17 07:56:21,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84381 states. [2021-11-17 07:56:23,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84381 to 80725. [2021-11-17 07:56:24,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80725 states, 56937 states have (on average 1.2523842141314083) internal successors, (71307), 58183 states have internal predecessors, (71307), 18562 states have call successors, (18562), 5300 states have call predecessors, (18562), 5223 states have return successors, (18814), 17997 states have call predecessors, (18814), 18558 states have call successors, (18814) [2021-11-17 07:56:24,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80725 states to 80725 states and 108683 transitions. [2021-11-17 07:56:24,258 INFO L78 Accepts]: Start accepts. Automaton has 80725 states and 108683 transitions. Word has length 188 [2021-11-17 07:56:24,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:56:24,260 INFO L470 AbstractCegarLoop]: Abstraction has 80725 states and 108683 transitions. [2021-11-17 07:56:24,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 07:56:24,260 INFO L276 IsEmpty]: Start isEmpty. Operand 80725 states and 108683 transitions. [2021-11-17 07:56:24,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-17 07:56:24,263 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:56:24,264 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:56:24,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 07:56:24,264 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:56:24,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:56:24,265 INFO L85 PathProgramCache]: Analyzing trace with hash -609615434, now seen corresponding path program 1 times [2021-11-17 07:56:24,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:56:24,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811699293] [2021-11-17 07:56:24,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:56:24,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:56:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:24,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:56:24,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:24,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:24,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:56:24,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:24,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:24,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:24,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:56:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:24,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:24,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:56:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:24,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:24,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:24,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:56:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:24,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:24,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:56:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:24,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:24,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:24,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:56:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:24,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:24,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:56:24,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:24,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:24,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:24,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:56:24,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:24,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:24,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:24,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 07:56:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:24,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 07:56:24,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:24,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 07:56:24,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:24,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 07:56:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:24,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 07:56:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:24,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:24,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 07:56:24,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:24,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 07:56:24,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:24,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 07:56:24,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:24,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 07:56:24,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:24,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 07:56:24,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:24,567 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2021-11-17 07:56:24,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:56:24,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811699293] [2021-11-17 07:56:24,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811699293] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:56:24,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:56:24,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:56:24,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116893700] [2021-11-17 07:56:24,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:56:24,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:56:24,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:56:24,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:56:24,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:56:24,570 INFO L87 Difference]: Start difference. First operand 80725 states and 108683 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 07:56:28,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:56:28,380 INFO L93 Difference]: Finished difference Result 84387 states and 114245 transitions. [2021-11-17 07:56:28,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:56:28,381 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 193 [2021-11-17 07:56:28,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:56:28,658 INFO L225 Difference]: With dead ends: 84387 [2021-11-17 07:56:28,658 INFO L226 Difference]: Without dead ends: 84385 [2021-11-17 07:56:28,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:56:28,701 INFO L933 BasicCegarLoop]: 1991 mSDtfsCounter, 2242 mSDsluCounter, 3776 mSDsCounter, 0 mSdLazyCounter, 1743 mSolverCounterSat, 820 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2451 SdHoareTripleChecker+Valid, 5767 SdHoareTripleChecker+Invalid, 2563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 820 IncrementalHoareTripleChecker+Valid, 1743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-17 07:56:28,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2451 Valid, 5767 Invalid, 2563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [820 Valid, 1743 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-17 07:56:28,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84385 states. [2021-11-17 07:56:31,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84385 to 80729. [2021-11-17 07:56:31,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80729 states, 56940 states have (on average 1.2523709167544783) internal successors, (71310), 58186 states have internal predecessors, (71310), 18562 states have call successors, (18562), 5301 states have call predecessors, (18562), 5224 states have return successors, (18814), 17997 states have call predecessors, (18814), 18558 states have call successors, (18814) [2021-11-17 07:56:31,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80729 states to 80729 states and 108686 transitions. [2021-11-17 07:56:31,523 INFO L78 Accepts]: Start accepts. Automaton has 80729 states and 108686 transitions. Word has length 193 [2021-11-17 07:56:31,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:56:31,524 INFO L470 AbstractCegarLoop]: Abstraction has 80729 states and 108686 transitions. [2021-11-17 07:56:31,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 07:56:31,524 INFO L276 IsEmpty]: Start isEmpty. Operand 80729 states and 108686 transitions. [2021-11-17 07:56:31,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-17 07:56:31,528 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:56:31,528 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:56:31,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 07:56:31,529 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:56:31,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:56:31,529 INFO L85 PathProgramCache]: Analyzing trace with hash -865449917, now seen corresponding path program 1 times [2021-11-17 07:56:31,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:56:31,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159286929] [2021-11-17 07:56:31,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:56:31,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:56:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:56:31,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:31,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:56:31,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:31,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:56:31,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:31,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:56:31,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:31,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:56:31,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:31,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:56:31,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:31,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:56:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:31,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:56:31,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:31,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:56:31,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:31,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 07:56:31,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 07:56:31,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 07:56:31,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 07:56:31,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 07:56:31,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:31,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 07:56:31,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 07:56:31,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 07:56:31,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 07:56:31,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 07:56:31,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 07:56:31,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-17 07:56:31,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 07:56:31,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:31,772 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2021-11-17 07:56:31,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:56:31,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159286929] [2021-11-17 07:56:31,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159286929] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:56:31,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:56:31,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 07:56:31,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745967639] [2021-11-17 07:56:31,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:56:31,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 07:56:31,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:56:31,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 07:56:31,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:56:31,776 INFO L87 Difference]: Start difference. First operand 80729 states and 108686 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, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-17 07:56:39,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:56:39,803 INFO L93 Difference]: Finished difference Result 205916 states and 278332 transitions. [2021-11-17 07:56:39,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 07:56:39,803 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, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 209 [2021-11-17 07:56:39,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:56:40,307 INFO L225 Difference]: With dead ends: 205916 [2021-11-17 07:56:40,307 INFO L226 Difference]: Without dead ends: 125266 [2021-11-17 07:56:40,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 07:56:40,512 INFO L933 BasicCegarLoop]: 3638 mSDtfsCounter, 2934 mSDsluCounter, 3635 mSDsCounter, 0 mSdLazyCounter, 2625 mSolverCounterSat, 1928 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3161 SdHoareTripleChecker+Valid, 7273 SdHoareTripleChecker+Invalid, 4553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1928 IncrementalHoareTripleChecker+Valid, 2625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-17 07:56:40,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3161 Valid, 7273 Invalid, 4553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1928 Valid, 2625 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-11-17 07:56:40,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125266 states.