./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.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 6eed6410a0dd7e708ffb27250b590aa2913bf9f742c15130caf6eadad29510cc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 11:15:38,650 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 11:15:38,653 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 11:15:38,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 11:15:38,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 11:15:38,693 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 11:15:38,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 11:15:38,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 11:15:38,697 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 11:15:38,701 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 11:15:38,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 11:15:38,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 11:15:38,703 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 11:15:38,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 11:15:38,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 11:15:38,710 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 11:15:38,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 11:15:38,712 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 11:15:38,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 11:15:38,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 11:15:38,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 11:15:38,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 11:15:38,721 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 11:15:38,721 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 11:15:38,726 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 11:15:38,726 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 11:15:38,726 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 11:15:38,727 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 11:15:38,728 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 11:15:38,728 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 11:15:38,728 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 11:15:38,729 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 11:15:38,730 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 11:15:38,731 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 11:15:38,731 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 11:15:38,732 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 11:15:38,732 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 11:15:38,732 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 11:15:38,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 11:15:38,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 11:15:38,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 11:15:38,735 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 11:15:38,758 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 11:15:38,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 11:15:38,759 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 11:15:38,759 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 11:15:38,760 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 11:15:38,760 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 11:15:38,760 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 11:15:38,760 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 11:15:38,760 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 11:15:38,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 11:15:38,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 11:15:38,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 11:15:38,761 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 11:15:38,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 11:15:38,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 11:15:38,762 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 11:15:38,762 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 11:15:38,762 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 11:15:38,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 11:15:38,762 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 11:15:38,763 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 11:15:38,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 11:15:38,763 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 11:15:38,763 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 11:15:38,763 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 11:15:38,763 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 11:15:38,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 11:15:38,764 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 11:15:38,764 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 11:15:38,765 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 11:15:38,765 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 11:15:38,765 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6eed6410a0dd7e708ffb27250b590aa2913bf9f742c15130caf6eadad29510cc [2021-11-17 11:15:38,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 11:15:38,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 11:15:38,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 11:15:38,984 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 11:15:38,985 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 11:15:38,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i [2021-11-17 11:15:39,038 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79289e53d/1d3f73d246c548509585d6be9488185f/FLAG096a70336 [2021-11-17 11:15:39,697 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 11:15:39,697 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i [2021-11-17 11:15:39,742 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79289e53d/1d3f73d246c548509585d6be9488185f/FLAG096a70336 [2021-11-17 11:15:40,007 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79289e53d/1d3f73d246c548509585d6be9488185f [2021-11-17 11:15:40,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 11:15:40,010 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 11:15:40,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 11:15:40,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 11:15:40,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 11:15:40,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:15:40" (1/1) ... [2021-11-17 11:15:40,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56216e2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:15:40, skipping insertion in model container [2021-11-17 11:15:40,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:15:40" (1/1) ... [2021-11-17 11:15:40,025 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 11:15:40,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 11:15:42,590 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404089,404102] [2021-11-17 11:15:42,594 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404258,404271] [2021-11-17 11:15:42,595 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404425,404438] [2021-11-17 11:15:42,595 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404593,404606] [2021-11-17 11:15:42,619 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 11:15:42,667 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 11:15:42,963 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404089,404102] [2021-11-17 11:15:42,964 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404258,404271] [2021-11-17 11:15:42,964 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404425,404438] [2021-11-17 11:15:42,964 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404593,404606] [2021-11-17 11:15:42,971 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 11:15:43,127 INFO L208 MainTranslator]: Completed translation [2021-11-17 11:15:43,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:15:43 WrapperNode [2021-11-17 11:15:43,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 11:15:43,129 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 11:15:43,129 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 11:15:43,130 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 11:15:43,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:15:43" (1/1) ... [2021-11-17 11:15:43,216 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:15:43" (1/1) ... [2021-11-17 11:15:43,408 INFO L137 Inliner]: procedures = 559, calls = 2801, calls flagged for inlining = 291, calls inlined = 253, statements flattened = 5810 [2021-11-17 11:15:43,409 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 11:15:43,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 11:15:43,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 11:15:43,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 11:15:43,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:15:43" (1/1) ... [2021-11-17 11:15:43,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:15:43" (1/1) ... [2021-11-17 11:15:43,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:15:43" (1/1) ... [2021-11-17 11:15:43,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:15:43" (1/1) ... [2021-11-17 11:15:43,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:15:43" (1/1) ... [2021-11-17 11:15:43,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:15:43" (1/1) ... [2021-11-17 11:15:43,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:15:43" (1/1) ... [2021-11-17 11:15:43,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 11:15:43,698 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 11:15:43,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 11:15:43,699 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 11:15:43,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:15:43" (1/1) ... [2021-11-17 11:15:43,705 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 11:15:43,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 11:15:43,723 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 11:15:43,743 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 11:15:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-17 11:15:43,759 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-17 11:15:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 11:15:43,759 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 11:15:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-17 11:15:43,760 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-17 11:15:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-17 11:15:43,760 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-17 11:15:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 11:15:43,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 11:15:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-17 11:15:43,761 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-17 11:15:43,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-17 11:15:43,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-17 11:15:43,761 INFO L130 BoogieDeclarations]: Found specification of procedure free_tbufs [2021-11-17 11:15:43,761 INFO L138 BoogieDeclarations]: Found implementation of procedure free_tbufs [2021-11-17 11:15:43,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_80 [2021-11-17 11:15:43,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_80 [2021-11-17 11:15:43,761 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-17 11:15:43,762 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-17 11:15:43,762 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-17 11:15:43,762 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-17 11:15:43,762 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-17 11:15:43,762 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-17 11:15:43,762 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-17 11:15:43,762 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-17 11:15:43,762 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-11-17 11:15:43,763 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-11-17 11:15:43,763 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_poll [2021-11-17 11:15:43,763 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_poll [2021-11-17 11:15:43,763 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-11-17 11:15:43,763 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-11-17 11:15:43,763 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-17 11:15:43,763 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-17 11:15:43,763 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_wait_bit_low [2021-11-17 11:15:43,764 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_wait_bit_low [2021-11-17 11:15:43,764 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-17 11:15:43,764 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-17 11:15:43,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-17 11:15:43,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-17 11:15:43,764 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-17 11:15:43,765 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-17 11:15:43,765 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-17 11:15:43,765 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-17 11:15:43,765 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-17 11:15:43,765 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-17 11:15:43,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 11:15:43,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 11:15:43,766 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-17 11:15:43,766 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-17 11:15:43,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 11:15:43,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_62 [2021-11-17 11:15:43,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_62 [2021-11-17 11:15:43,767 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-17 11:15:43,767 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-17 11:15:43,768 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_wait_bit [2021-11-17 11:15:43,768 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_wait_bit [2021-11-17 11:15:43,768 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 11:15:43,768 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 11:15:43,768 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-17 11:15:43,768 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-17 11:15:43,768 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_rbufs [2021-11-17 11:15:43,769 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_rbufs [2021-11-17 11:15:43,769 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-17 11:15:43,769 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-17 11:15:43,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 11:15:43,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-17 11:15:43,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-17 11:15:43,769 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_interrupt [2021-11-17 11:15:43,769 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_interrupt [2021-11-17 11:15:43,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 11:15:43,770 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-17 11:15:43,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-17 11:15:43,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-17 11:15:43,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-17 11:15:43,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-17 11:15:43,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-17 11:15:43,771 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_task_disable [2021-11-17 11:15:43,771 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_task_disable [2021-11-17 11:15:43,771 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-11-17 11:15:43,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-11-17 11:15:43,771 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-17 11:15:43,771 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-17 11:15:43,772 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-17 11:15:43,772 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-17 11:15:43,772 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_carrier [2021-11-17 11:15:43,772 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_carrier [2021-11-17 11:15:43,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-17 11:15:43,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-17 11:15:43,773 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_shutdown [2021-11-17 11:15:43,773 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_shutdown [2021-11-17 11:15:43,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 11:15:43,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-17 11:15:43,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-17 11:15:43,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-17 11:15:43,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-17 11:15:43,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-17 11:15:43,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-17 11:15:43,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-17 11:15:43,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-17 11:15:43,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 11:15:43,774 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2021-11-17 11:15:43,775 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2021-11-17 11:15:43,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 11:15:43,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 11:15:43,775 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 11:15:43,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 11:15:43,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 11:15:43,776 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-17 11:15:43,776 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-11-17 11:15:43,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-11-17 11:15:43,776 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 11:15:43,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 11:15:43,779 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_rx_mode [2021-11-17 11:15:43,780 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_rx_mode [2021-11-17 11:15:43,780 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-17 11:15:43,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-17 11:15:43,781 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_update_rx_crc_and_missed_errord [2021-11-17 11:15:43,781 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_update_rx_crc_and_missed_errord [2021-11-17 11:15:43,781 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-11-17 11:15:43,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-11-17 11:15:43,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rhine_private [2021-11-17 11:15:43,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rhine_private [2021-11-17 11:15:43,785 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-17 11:15:43,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-17 11:15:43,786 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-17 11:15:43,786 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-17 11:15:43,786 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 11:15:43,786 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 11:15:43,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-17 11:15:43,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-17 11:15:43,786 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2021-11-17 11:15:43,786 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2021-11-17 11:15:43,786 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-17 11:15:43,787 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-17 11:15:43,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_68 [2021-11-17 11:15:43,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_68 [2021-11-17 11:15:43,787 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_power_init [2021-11-17 11:15:43,787 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_power_init [2021-11-17 11:15:43,787 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_tx_timeout [2021-11-17 11:15:43,787 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_tx_timeout [2021-11-17 11:15:43,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rhine_private [2021-11-17 11:15:43,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rhine_private [2021-11-17 11:15:43,787 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-11-17 11:15:43,788 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-11-17 11:15:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 11:15:43,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 11:15:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-17 11:15:43,788 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-17 11:15:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 11:15:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 11:15:43,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 11:15:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-17 11:15:43,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-17 11:15:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-17 11:15:43,789 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_chip_reset [2021-11-17 11:15:43,789 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_chip_reset [2021-11-17 11:15:43,789 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-17 11:15:43,789 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-17 11:15:43,789 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-17 11:15:43,789 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-17 11:15:43,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 11:15:43,789 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 11:15:43,789 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_cam_mask [2021-11-17 11:15:43,789 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_cam_mask [2021-11-17 11:15:43,790 INFO L130 BoogieDeclarations]: Found specification of procedure init_registers [2021-11-17 11:15:43,790 INFO L138 BoogieDeclarations]: Found implementation of procedure init_registers [2021-11-17 11:15:43,790 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-17 11:15:43,790 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-17 11:15:43,790 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_remove_one [2021-11-17 11:15:43,790 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_remove_one [2021-11-17 11:15:43,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-17 11:15:43,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-17 11:15:43,790 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-17 11:15:43,791 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-17 11:15:43,791 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_close [2021-11-17 11:15:43,791 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_close [2021-11-17 11:15:43,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_79 [2021-11-17 11:15:43,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_79 [2021-11-17 11:15:43,791 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-17 11:15:43,791 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-17 11:15:43,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 11:15:43,791 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-17 11:15:43,791 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-17 11:15:43,792 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-17 11:15:43,792 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-17 11:15:43,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 11:15:43,792 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_check_media [2021-11-17 11:15:43,792 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_check_media [2021-11-17 11:15:43,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rhine_cleanup_14_2 [2021-11-17 11:15:43,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rhine_cleanup_14_2 [2021-11-17 11:15:43,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 11:15:43,792 INFO L130 BoogieDeclarations]: Found specification of procedure free_rbufs [2021-11-17 11:15:43,792 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rbufs [2021-11-17 11:15:43,793 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_get_events [2021-11-17 11:15:43,793 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_get_events [2021-11-17 11:15:43,793 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-17 11:15:43,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-17 11:15:43,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-17 11:15:43,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-17 11:15:43,793 INFO L130 BoogieDeclarations]: Found specification of procedure enable_mmio [2021-11-17 11:15:43,793 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_mmio [2021-11-17 11:15:43,793 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_vlan_cam_mask [2021-11-17 11:15:43,793 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_vlan_cam_mask [2021-11-17 11:15:43,793 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-17 11:15:43,794 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-17 11:15:43,794 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-17 11:15:43,794 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-17 11:15:43,794 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 11:15:43,794 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 11:15:43,794 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-17 11:15:43,794 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-17 11:15:43,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-17 11:15:43,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-17 11:15:43,794 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-17 11:15:43,795 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-17 11:15:43,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-17 11:15:43,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-17 11:15:43,795 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-17 11:15:43,795 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-17 11:15:43,795 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-17 11:15:43,795 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-17 11:15:43,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_63 [2021-11-17 11:15:43,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_63 [2021-11-17 11:15:43,795 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_disable_linkmon [2021-11-17 11:15:43,796 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_disable_linkmon [2021-11-17 11:15:43,796 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_ack_events [2021-11-17 11:15:43,855 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_ack_events [2021-11-17 11:15:43,855 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-17 11:15:43,855 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-17 11:15:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_resume [2021-11-17 11:15:43,856 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_resume [2021-11-17 11:15:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 11:15:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_67 [2021-11-17 11:15:43,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_67 [2021-11-17 11:15:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 11:15:43,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 11:15:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2021-11-17 11:15:43,856 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2021-11-17 11:15:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-17 11:15:43,856 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-17 11:15:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_wait_bit_high [2021-11-17 11:15:43,856 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_wait_bit_high [2021-11-17 11:15:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_irq_disable [2021-11-17 11:15:43,856 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_irq_disable [2021-11-17 11:15:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_task_enable [2021-11-17 11:15:43,856 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_task_enable [2021-11-17 11:15:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_tbufs [2021-11-17 11:15:43,856 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_tbufs [2021-11-17 11:15:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-17 11:15:43,856 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-17 11:15:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-17 11:15:43,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-17 11:15:43,857 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-17 11:15:43,857 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-17 11:15:43,857 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-17 11:15:43,857 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-17 11:15:43,857 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_enable_linkmon [2021-11-17 11:15:43,857 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_enable_linkmon [2021-11-17 11:15:43,857 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_update_vcam [2021-11-17 11:15:43,857 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_update_vcam [2021-11-17 11:15:43,857 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-17 11:15:43,857 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-17 11:15:43,857 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-17 11:15:43,857 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-17 11:15:43,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 11:15:43,857 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_suspend [2021-11-17 11:15:43,857 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_suspend [2021-11-17 11:15:43,857 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_open [2021-11-17 11:15:43,857 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_open [2021-11-17 11:15:43,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-17 11:15:43,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-17 11:15:44,483 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 11:15:44,485 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 11:15:44,621 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 11:22:50,770 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-17 11:22:50,823 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 11:22:50,847 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 11:22:50,847 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-17 11:22:50,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:22:50 BoogieIcfgContainer [2021-11-17 11:22:50,850 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 11:22:50,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 11:22:50,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 11:22:50,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 11:22:50,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 11:15:40" (1/3) ... [2021-11-17 11:22:50,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303f424e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:22:50, skipping insertion in model container [2021-11-17 11:22:50,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:15:43" (2/3) ... [2021-11-17 11:22:50,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303f424e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:22:50, skipping insertion in model container [2021-11-17 11:22:50,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:22:50" (3/3) ... [2021-11-17 11:22:50,860 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i [2021-11-17 11:22:50,864 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 11:22:50,864 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-17 11:22:50,917 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 11:22:50,921 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 11:22:50,921 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-17 11:22:50,957 INFO L276 IsEmpty]: Start isEmpty. Operand has 2254 states, 1521 states have (on average 1.2741617357001973) internal successors, (1938), 1570 states have internal predecessors, (1938), 604 states have call successors, (604), 128 states have call predecessors, (604), 127 states have return successors, (595), 582 states have call predecessors, (595), 595 states have call successors, (595) [2021-11-17 11:22:50,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-11-17 11:22:50,971 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:22:50,971 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:22:50,972 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 11:22:50,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:22:50,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1035436214, now seen corresponding path program 1 times [2021-11-17 11:22:50,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:22:50,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780646892] [2021-11-17 11:22:50,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:22:50,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:22:51,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:51,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:22:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:51,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:22:51,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:51,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:22:51,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:52,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:22:52,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:52,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:22:52,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:52,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:22:52,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:52,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:22:52,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:52,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:22:52,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:52,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:22:52,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:52,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:22:52,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:52,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:22:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:52,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:22:52,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:52,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:22:52,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:52,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:22:52,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:52,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:22:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:52,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:22:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:52,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:22:52,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:52,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:22:52,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:52,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:22:52,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:52,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:22:52,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:52,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:22:52,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:52,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:22:52,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:52,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:22:52,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:52,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:22:52,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:52,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:22:52,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:52,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:22:52,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:52,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:22:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:52,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:22:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:52,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 11:22:52,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:52,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-11-17 11:22:52,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:22:52,275 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2021-11-17 11:22:52,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:22:52,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780646892] [2021-11-17 11:22:52,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780646892] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:22:52,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:22:52,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 11:22:52,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546998346] [2021-11-17 11:22:52,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:22:52,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 11:22:52,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:22:52,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 11:22:52,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 11:22:52,313 INFO L87 Difference]: Start difference. First operand has 2254 states, 1521 states have (on average 1.2741617357001973) internal successors, (1938), 1570 states have internal predecessors, (1938), 604 states have call successors, (604), 128 states have call predecessors, (604), 127 states have return successors, (595), 582 states have call predecessors, (595), 595 states have call successors, (595) Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-17 11:22:54,425 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:22:56,748 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:23:07,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:23:07,654 INFO L93 Difference]: Finished difference Result 6627 states and 9506 transitions. [2021-11-17 11:23:07,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 11:23:07,656 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 184 [2021-11-17 11:23:07,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:23:07,698 INFO L225 Difference]: With dead ends: 6627 [2021-11-17 11:23:07,699 INFO L226 Difference]: Without dead ends: 4393 [2021-11-17 11:23:07,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:23:07,717 INFO L933 BasicCegarLoop]: 3205 mSDtfsCounter, 3767 mSDsluCounter, 3364 mSDsCounter, 0 mSdLazyCounter, 2055 mSolverCounterSat, 1824 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4282 SdHoareTripleChecker+Valid, 6569 SdHoareTripleChecker+Invalid, 3881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1824 IncrementalHoareTripleChecker+Valid, 2055 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2021-11-17 11:23:07,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4282 Valid, 6569 Invalid, 3881 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1824 Valid, 2055 Invalid, 2 Unknown, 0 Unchecked, 14.7s Time] [2021-11-17 11:23:07,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4393 states. [2021-11-17 11:23:07,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4393 to 4293. [2021-11-17 11:23:07,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4293 states, 2900 states have (on average 1.2582758620689656) internal successors, (3649), 2995 states have internal predecessors, (3649), 1140 states have call successors, (1140), 251 states have call predecessors, (1140), 250 states have return successors, (1136), 1110 states have call predecessors, (1136), 1136 states have call successors, (1136) [2021-11-17 11:23:07,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4293 states to 4293 states and 5925 transitions. [2021-11-17 11:23:07,990 INFO L78 Accepts]: Start accepts. Automaton has 4293 states and 5925 transitions. Word has length 184 [2021-11-17 11:23:07,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:23:07,993 INFO L470 AbstractCegarLoop]: Abstraction has 4293 states and 5925 transitions. [2021-11-17 11:23:07,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-17 11:23:07,993 INFO L276 IsEmpty]: Start isEmpty. Operand 4293 states and 5925 transitions. [2021-11-17 11:23:08,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-17 11:23:08,002 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:23:08,003 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:23:08,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 11:23:08,004 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 11:23:08,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:23:08,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1674848728, now seen corresponding path program 1 times [2021-11-17 11:23:08,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:23:08,006 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516486349] [2021-11-17 11:23:08,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:23:08,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:23:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:23:08,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:23:08,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:23:08,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:08,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:23:08,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:08,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:23:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:08,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:23:08,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:08,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:23:08,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:08,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:23:08,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:23:08,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:23:08,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:08,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:23:08,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:08,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:23:08,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:08,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:23:08,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:23:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:08,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 11:23:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 11:23:08,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:08,806 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2021-11-17 11:23:08,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:23:08,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516486349] [2021-11-17 11:23:08,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516486349] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:23:08,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:23:08,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 11:23:08,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451118955] [2021-11-17 11:23:08,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:23:08,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 11:23:08,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:23:08,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 11:23:08,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 11:23:08,812 INFO L87 Difference]: Start difference. First operand 4293 states and 5925 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-17 11:23:10,897 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:23:13,220 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:23:23,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:23:23,950 INFO L93 Difference]: Finished difference Result 12269 states and 17057 transitions. [2021-11-17 11:23:23,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 11:23:23,950 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 191 [2021-11-17 11:23:23,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:23:23,991 INFO L225 Difference]: With dead ends: 12269 [2021-11-17 11:23:23,992 INFO L226 Difference]: Without dead ends: 8009 [2021-11-17 11:23:24,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:23:24,009 INFO L933 BasicCegarLoop]: 3126 mSDtfsCounter, 3304 mSDsluCounter, 3315 mSDsCounter, 0 mSdLazyCounter, 2021 mSolverCounterSat, 1742 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3758 SdHoareTripleChecker+Valid, 6441 SdHoareTripleChecker+Invalid, 3765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1742 IncrementalHoareTripleChecker+Valid, 2021 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2021-11-17 11:23:24,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3758 Valid, 6441 Invalid, 3765 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1742 Valid, 2021 Invalid, 2 Unknown, 0 Unchecked, 14.6s Time] [2021-11-17 11:23:24,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8009 states. [2021-11-17 11:23:24,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8009 to 7796. [2021-11-17 11:23:24,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7796 states, 5245 states have (on average 1.257959961868446) internal successors, (6598), 5425 states have internal predecessors, (6598), 2067 states have call successors, (2067), 482 states have call predecessors, (2067), 481 states have return successors, (2067), 2006 states have call predecessors, (2067), 2063 states have call successors, (2067) [2021-11-17 11:23:24,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7796 states to 7796 states and 10732 transitions. [2021-11-17 11:23:24,277 INFO L78 Accepts]: Start accepts. Automaton has 7796 states and 10732 transitions. Word has length 191 [2021-11-17 11:23:24,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:23:24,278 INFO L470 AbstractCegarLoop]: Abstraction has 7796 states and 10732 transitions. [2021-11-17 11:23:24,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-17 11:23:24,279 INFO L276 IsEmpty]: Start isEmpty. Operand 7796 states and 10732 transitions. [2021-11-17 11:23:24,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-17 11:23:24,283 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:23:24,283 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:23:24,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 11:23:24,284 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 11:23:24,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:23:24,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1110319682, now seen corresponding path program 1 times [2021-11-17 11:23:24,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:23:24,284 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272738793] [2021-11-17 11:23:24,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:23:24,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:23:24,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:24,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:23:24,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:24,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:24,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:23:24,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:24,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:24,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:24,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:23:24,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:24,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:24,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:23:24,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:24,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:24,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:24,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:23:24,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:24,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:24,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:24,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:23:24,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:24,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:24,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:24,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:23:24,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:24,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:24,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:24,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:23:24,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:24,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:24,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:24,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:23:24,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:24,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:24,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:24,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:23:24,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:24,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:24,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:24,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:23:24,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:24,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:24,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:23:24,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:24,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:24,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:24,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:23:24,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:24,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:25,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:25,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:23:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:25,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:25,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:25,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 11:23:25,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:25,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 11:23:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:25,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 11:23:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:25,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-17 11:23:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:25,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:25,051 INFO L134 CoverageAnalysis]: Checked inductivity of 864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 864 trivial. 0 not checked. [2021-11-17 11:23:25,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:23:25,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272738793] [2021-11-17 11:23:25,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272738793] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:23:25,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:23:25,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 11:23:25,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436324262] [2021-11-17 11:23:25,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:23:25,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 11:23:25,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:23:25,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 11:23:25,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 11:23:25,056 INFO L87 Difference]: Start difference. First operand 7796 states and 10732 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-17 11:23:27,145 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:23:29,479 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:23:40,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:23:40,793 INFO L93 Difference]: Finished difference Result 22556 states and 31230 transitions. [2021-11-17 11:23:40,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 11:23:40,793 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 214 [2021-11-17 11:23:40,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:23:40,872 INFO L225 Difference]: With dead ends: 22556 [2021-11-17 11:23:40,872 INFO L226 Difference]: Without dead ends: 14793 [2021-11-17 11:23:40,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:23:40,915 INFO L933 BasicCegarLoop]: 3414 mSDtfsCounter, 3304 mSDsluCounter, 3388 mSDsCounter, 0 mSdLazyCounter, 2105 mSolverCounterSat, 1642 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3795 SdHoareTripleChecker+Valid, 6802 SdHoareTripleChecker+Invalid, 3749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1642 IncrementalHoareTripleChecker+Valid, 2105 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2021-11-17 11:23:40,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3795 Valid, 6802 Invalid, 3749 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1642 Valid, 2105 Invalid, 2 Unknown, 0 Unchecked, 15.1s Time] [2021-11-17 11:23:40,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14793 states. [2021-11-17 11:23:41,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14793 to 14408. [2021-11-17 11:23:41,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14408 states, 9649 states have (on average 1.2517359311845788) internal successors, (12078), 9979 states have internal predecessors, (12078), 3819 states have call successors, (3819), 940 states have call predecessors, (3819), 937 states have return successors, (3819), 3704 states have call predecessors, (3819), 3815 states have call successors, (3819) [2021-11-17 11:23:41,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14408 states to 14408 states and 19716 transitions. [2021-11-17 11:23:41,417 INFO L78 Accepts]: Start accepts. Automaton has 14408 states and 19716 transitions. Word has length 214 [2021-11-17 11:23:41,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:23:41,418 INFO L470 AbstractCegarLoop]: Abstraction has 14408 states and 19716 transitions. [2021-11-17 11:23:41,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-17 11:23:41,419 INFO L276 IsEmpty]: Start isEmpty. Operand 14408 states and 19716 transitions. [2021-11-17 11:23:41,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-17 11:23:41,423 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:23:41,423 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 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] [2021-11-17 11:23:41,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 11:23:41,423 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 11:23:41,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:23:41,424 INFO L85 PathProgramCache]: Analyzing trace with hash -455281072, now seen corresponding path program 1 times [2021-11-17 11:23:41,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:23:41,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429118431] [2021-11-17 11:23:41,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:23:41,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:23:41,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:23:42,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:23:42,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:42,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:23:42,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:42,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:23:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:42,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:23:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:42,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:23:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:42,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:23:42,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:42,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:23:42,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:23:42,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:42,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:23:42,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:42,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:23:42,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:42,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:23:42,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:42,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:23:42,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:42,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:23:42,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:42,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 11:23:42,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 11:23:42,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 11:23:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 11:23:42,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:23:42,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:23:42,335 INFO L134 CoverageAnalysis]: Checked inductivity of 864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 864 trivial. 0 not checked. [2021-11-17 11:23:42,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:23:42,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429118431] [2021-11-17 11:23:42,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429118431] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:23:42,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:23:42,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 11:23:42,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158992735] [2021-11-17 11:23:42,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:23:42,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 11:23:42,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:23:42,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 11:23:42,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-17 11:23:42,337 INFO L87 Difference]: Start difference. First operand 14408 states and 19716 transitions. Second operand has 7 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-17 11:23:44,422 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:23:46,755 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:24:18,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:24:18,542 INFO L93 Difference]: Finished difference Result 37017 states and 50747 transitions. [2021-11-17 11:24:18,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 11:24:18,542 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 209 [2021-11-17 11:24:18,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:24:18,637 INFO L225 Difference]: With dead ends: 37017 [2021-11-17 11:24:18,638 INFO L226 Difference]: Without dead ends: 22642 [2021-11-17 11:24:18,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-17 11:24:18,684 INFO L933 BasicCegarLoop]: 3819 mSDtfsCounter, 14209 mSDsluCounter, 4918 mSDsCounter, 0 mSdLazyCounter, 5580 mSolverCounterSat, 8263 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15155 SdHoareTripleChecker+Valid, 8737 SdHoareTripleChecker+Invalid, 13845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8263 IncrementalHoareTripleChecker+Valid, 5580 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.9s IncrementalHoareTripleChecker+Time [2021-11-17 11:24:18,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15155 Valid, 8737 Invalid, 13845 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8263 Valid, 5580 Invalid, 2 Unknown, 0 Unchecked, 34.9s Time] [2021-11-17 11:24:18,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22642 states. [2021-11-17 11:24:19,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22642 to 21954. [2021-11-17 11:24:19,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21954 states, 14642 states have (on average 1.243136183581478) internal successors, (18202), 15151 states have internal predecessors, (18202), 5783 states have call successors, (5783), 1536 states have call predecessors, (5783), 1526 states have return successors, (5785), 5575 states have call predecessors, (5785), 5779 states have call successors, (5785) [2021-11-17 11:24:19,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21954 states to 21954 states and 29770 transitions. [2021-11-17 11:24:19,351 INFO L78 Accepts]: Start accepts. Automaton has 21954 states and 29770 transitions. Word has length 209 [2021-11-17 11:24:19,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:24:19,352 INFO L470 AbstractCegarLoop]: Abstraction has 21954 states and 29770 transitions. [2021-11-17 11:24:19,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-17 11:24:19,352 INFO L276 IsEmpty]: Start isEmpty. Operand 21954 states and 29770 transitions. [2021-11-17 11:24:19,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-11-17 11:24:19,357 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:24:19,358 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:24:19,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 11:24:19,358 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 11:24:19,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:24:19,359 INFO L85 PathProgramCache]: Analyzing trace with hash 601744054, now seen corresponding path program 1 times [2021-11-17 11:24:19,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:24:19,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679884745] [2021-11-17 11:24:19,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:24:19,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:24:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:19,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:24:19,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:19,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:24:19,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:19,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:24:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:19,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:24:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:19,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:24:19,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:19,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:24:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:19,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:24:19,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:19,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:24:19,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:19,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:24:19,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:19,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:24:19,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:19,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:24:19,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:19,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:24:19,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:19,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:24:19,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:19,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:24:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:19,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:24:19,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:19,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:24:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:19,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:24:19,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:19,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:24:19,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:19,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:24:19,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:19,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:24:19,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:19,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:24:19,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:19,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:24:19,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:19,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:24:19,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:19,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:24:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:19,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:24:19,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:19,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:24:19,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:19,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:24:19,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:19,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:24:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:19,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 11:24:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:19,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 11:24:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:20,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 11:24:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:20,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-11-17 11:24:20,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:20,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-17 11:24:20,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:20,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 11:24:20,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:20,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:24:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:20,113 INFO L134 CoverageAnalysis]: Checked inductivity of 916 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2021-11-17 11:24:20,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:24:20,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679884745] [2021-11-17 11:24:20,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679884745] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:24:20,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:24:20,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 11:24:20,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412808023] [2021-11-17 11:24:20,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:24:20,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 11:24:20,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:24:20,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 11:24:20,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 11:24:20,115 INFO L87 Difference]: Start difference. First operand 21954 states and 29770 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-17 11:24:22,199 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:24:24,515 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:24:36,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:24:36,878 INFO L93 Difference]: Finished difference Result 61984 states and 84541 transitions. [2021-11-17 11:24:36,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 11:24:36,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 239 [2021-11-17 11:24:36,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:24:37,305 INFO L225 Difference]: With dead ends: 61984 [2021-11-17 11:24:37,305 INFO L226 Difference]: Without dead ends: 40063 [2021-11-17 11:24:37,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:24:37,372 INFO L933 BasicCegarLoop]: 3727 mSDtfsCounter, 3572 mSDsluCounter, 3631 mSDsCounter, 0 mSdLazyCounter, 2080 mSolverCounterSat, 1706 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4083 SdHoareTripleChecker+Valid, 7358 SdHoareTripleChecker+Invalid, 3788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1706 IncrementalHoareTripleChecker+Valid, 2080 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2021-11-17 11:24:37,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4083 Valid, 7358 Invalid, 3788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1706 Valid, 2080 Invalid, 2 Unknown, 0 Unchecked, 15.7s Time] [2021-11-17 11:24:37,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40063 states. [2021-11-17 11:24:38,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40063 to 38916. [2021-11-17 11:24:38,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38916 states, 25995 states have (on average 1.2405462588959415) internal successors, (32248), 26932 states have internal predecessors, (32248), 10215 states have call successors, (10215), 2722 states have call predecessors, (10215), 2703 states have return successors, (10223), 9821 states have call predecessors, (10223), 10211 states have call successors, (10223) [2021-11-17 11:24:38,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38916 states to 38916 states and 52686 transitions. [2021-11-17 11:24:38,786 INFO L78 Accepts]: Start accepts. Automaton has 38916 states and 52686 transitions. Word has length 239 [2021-11-17 11:24:38,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:24:38,787 INFO L470 AbstractCegarLoop]: Abstraction has 38916 states and 52686 transitions. [2021-11-17 11:24:38,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-17 11:24:38,787 INFO L276 IsEmpty]: Start isEmpty. Operand 38916 states and 52686 transitions. [2021-11-17 11:24:38,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-11-17 11:24:38,791 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:24:38,791 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:24:38,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 11:24:38,791 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 11:24:38,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:24:38,792 INFO L85 PathProgramCache]: Analyzing trace with hash 756415631, now seen corresponding path program 1 times [2021-11-17 11:24:38,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:24:38,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378743087] [2021-11-17 11:24:38,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:24:38,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:24:39,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:24:39,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:24:39,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:24:39,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:24:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:24:39,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:24:39,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:24:39,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:24:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:24:39,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:24:39,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:24:39,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:24:39,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:24:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:24:39,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:24:39,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:24:39,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:24:39,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:24:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:24:39,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:24:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:24:39,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:24:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:24:39,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:24:39,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:24:39,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:24:39,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:24:39,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:24:39,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 11:24:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 11:24:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 11:24:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 11:24:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 11:24:39,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:24:39,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 11:24:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 11:24:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 11:24:39,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:24:39,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2021-11-17 11:24:39,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:24:39,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378743087] [2021-11-17 11:24:39,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378743087] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:24:39,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:24:39,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 11:24:39,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116055796] [2021-11-17 11:24:39,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:24:39,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 11:24:39,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:24:39,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 11:24:39,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 11:24:39,540 INFO L87 Difference]: Start difference. First operand 38916 states and 52686 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (26), 3 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 11:24:41,743 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:24:44,069 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:24:56,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:24:56,641 INFO L93 Difference]: Finished difference Result 115163 states and 156896 transitions. [2021-11-17 11:24:56,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 11:24:56,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (26), 3 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 245 [2021-11-17 11:24:56,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:24:57,144 INFO L225 Difference]: With dead ends: 115163 [2021-11-17 11:24:57,145 INFO L226 Difference]: Without dead ends: 77294 [2021-11-17 11:24:57,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:24:57,256 INFO L933 BasicCegarLoop]: 4710 mSDtfsCounter, 3174 mSDsluCounter, 4029 mSDsCounter, 0 mSdLazyCounter, 2063 mSolverCounterSat, 1429 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3682 SdHoareTripleChecker+Valid, 8739 SdHoareTripleChecker+Invalid, 3494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1429 IncrementalHoareTripleChecker+Valid, 2063 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2021-11-17 11:24:57,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3682 Valid, 8739 Invalid, 3494 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1429 Valid, 2063 Invalid, 2 Unknown, 0 Unchecked, 15.2s Time] [2021-11-17 11:24:57,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77294 states. [2021-11-17 11:24:59,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77294 to 75136. [2021-11-17 11:24:59,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75136 states, 50235 states have (on average 1.2395341893102418) internal successors, (62268), 51972 states have internal predecessors, (62268), 19657 states have call successors, (19657), 5262 states have call predecessors, (19657), 5241 states have return successors, (19677), 19005 states have call predecessors, (19677), 19653 states have call successors, (19677) [2021-11-17 11:24:59,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75136 states to 75136 states and 101602 transitions. [2021-11-17 11:24:59,869 INFO L78 Accepts]: Start accepts. Automaton has 75136 states and 101602 transitions. Word has length 245 [2021-11-17 11:24:59,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:24:59,870 INFO L470 AbstractCegarLoop]: Abstraction has 75136 states and 101602 transitions. [2021-11-17 11:24:59,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (26), 3 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 11:24:59,870 INFO L276 IsEmpty]: Start isEmpty. Operand 75136 states and 101602 transitions. [2021-11-17 11:24:59,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-11-17 11:24:59,874 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:24:59,874 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:24:59,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 11:24:59,875 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 11:24:59,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:24:59,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1615323631, now seen corresponding path program 1 times [2021-11-17 11:24:59,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:24:59,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19686356] [2021-11-17 11:24:59,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:24:59,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:25:00,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:25:00,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:25:00,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:00,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:25:00,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:25:00,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:25:00,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:00,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:25:00,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:00,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:25:00,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:00,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:25:00,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:00,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:25:00,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:00,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:25:00,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:00,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:25:00,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:00,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:25:00,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:00,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:25:00,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:00,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:25:00,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:00,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 11:25:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 11:25:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 11:25:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 11:25:00,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 11:25:00,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:00,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 11:25:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 11:25:00,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 11:25:00,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:00,945 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1041 trivial. 0 not checked. [2021-11-17 11:25:00,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:25:00,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19686356] [2021-11-17 11:25:00,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19686356] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:25:00,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:25:00,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 11:25:00,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987122577] [2021-11-17 11:25:00,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:25:00,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 11:25:00,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:25:00,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 11:25:00,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 11:25:00,947 INFO L87 Difference]: Start difference. First operand 75136 states and 101602 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 11:25:03,033 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:25:15,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:25:15,745 INFO L93 Difference]: Finished difference Result 78066 states and 106191 transitions. [2021-11-17 11:25:15,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 11:25:15,746 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 245 [2021-11-17 11:25:15,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:25:16,158 INFO L225 Difference]: With dead ends: 78066 [2021-11-17 11:25:16,159 INFO L226 Difference]: Without dead ends: 78064 [2021-11-17 11:25:16,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 11:25:16,193 INFO L933 BasicCegarLoop]: 2819 mSDtfsCounter, 3091 mSDsluCounter, 5594 mSDsCounter, 0 mSdLazyCounter, 2385 mSolverCounterSat, 1259 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3409 SdHoareTripleChecker+Valid, 8413 SdHoareTripleChecker+Invalid, 3645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1259 IncrementalHoareTripleChecker+Valid, 2385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2021-11-17 11:25:16,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3409 Valid, 8413 Invalid, 3645 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1259 Valid, 2385 Invalid, 1 Unknown, 0 Unchecked, 12.6s Time] [2021-11-17 11:25:16,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78064 states. [2021-11-17 11:25:18,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78064 to 75908. [2021-11-17 11:25:18,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75908 states, 50742 states have (on average 1.238559772969138) internal successors, (62847), 52527 states have internal predecessors, (62847), 19753 states have call successors, (19753), 5431 states have call predecessors, (19753), 5410 states have return successors, (19773), 19101 states have call predecessors, (19773), 19749 states have call successors, (19773) [2021-11-17 11:25:18,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75908 states to 75908 states and 102373 transitions. [2021-11-17 11:25:18,842 INFO L78 Accepts]: Start accepts. Automaton has 75908 states and 102373 transitions. Word has length 245 [2021-11-17 11:25:18,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:25:18,843 INFO L470 AbstractCegarLoop]: Abstraction has 75908 states and 102373 transitions. [2021-11-17 11:25:18,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 11:25:18,843 INFO L276 IsEmpty]: Start isEmpty. Operand 75908 states and 102373 transitions. [2021-11-17 11:25:18,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-11-17 11:25:18,848 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:25:18,848 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:25:18,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 11:25:18,849 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 11:25:18,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:25:18,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1092338553, now seen corresponding path program 1 times [2021-11-17 11:25:18,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:25:18,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824867877] [2021-11-17 11:25:18,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:25:18,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:25:19,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:25:19,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:19,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:25:19,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:19,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:25:19,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:19,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:25:19,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:19,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:25:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:25:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:19,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:25:19,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:19,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:25:19,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:19,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:25:19,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:19,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:25:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:19,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:25:19,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:25:19,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:19,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:25:19,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:19,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:25:19,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 11:25:19,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 11:25:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 11:25:19,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 11:25:19,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 11:25:19,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:19,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 11:25:19,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 11:25:19,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 11:25:19,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-11-17 11:25:19,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:19,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1043 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1041 trivial. 0 not checked. [2021-11-17 11:25:19,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:25:19,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824867877] [2021-11-17 11:25:19,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824867877] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:25:19,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:25:19,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 11:25:19,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621028474] [2021-11-17 11:25:19,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:25:19,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 11:25:19,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:25:19,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 11:25:19,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 11:25:19,862 INFO L87 Difference]: Start difference. First operand 75908 states and 102373 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 11:25:21,943 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:25:34,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:25:34,387 INFO L93 Difference]: Finished difference Result 78068 states and 106193 transitions. [2021-11-17 11:25:34,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 11:25:34,387 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 250 [2021-11-17 11:25:34,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:25:34,675 INFO L225 Difference]: With dead ends: 78068 [2021-11-17 11:25:34,676 INFO L226 Difference]: Without dead ends: 78066 [2021-11-17 11:25:34,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 11:25:34,722 INFO L933 BasicCegarLoop]: 2822 mSDtfsCounter, 3064 mSDsluCounter, 5581 mSDsCounter, 0 mSdLazyCounter, 2339 mSolverCounterSat, 1262 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3376 SdHoareTripleChecker+Valid, 8403 SdHoareTripleChecker+Invalid, 3602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1262 IncrementalHoareTripleChecker+Valid, 2339 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2021-11-17 11:25:34,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3376 Valid, 8403 Invalid, 3602 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1262 Valid, 2339 Invalid, 1 Unknown, 0 Unchecked, 12.4s Time] [2021-11-17 11:25:34,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78066 states. [2021-11-17 11:25:36,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78066 to 75912. [2021-11-17 11:25:36,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75912 states, 50745 states have (on average 1.238545669524091) internal successors, (62850), 52530 states have internal predecessors, (62850), 19753 states have call successors, (19753), 5432 states have call predecessors, (19753), 5411 states have return successors, (19773), 19101 states have call predecessors, (19773), 19749 states have call successors, (19773) [2021-11-17 11:25:37,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75912 states to 75912 states and 102376 transitions. [2021-11-17 11:25:37,207 INFO L78 Accepts]: Start accepts. Automaton has 75912 states and 102376 transitions. Word has length 250 [2021-11-17 11:25:37,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:25:37,208 INFO L470 AbstractCegarLoop]: Abstraction has 75912 states and 102376 transitions. [2021-11-17 11:25:37,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 11:25:37,208 INFO L276 IsEmpty]: Start isEmpty. Operand 75912 states and 102376 transitions. [2021-11-17 11:25:37,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-11-17 11:25:37,214 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:25:37,215 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:25:37,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 11:25:37,217 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 11:25:37,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:25:37,217 INFO L85 PathProgramCache]: Analyzing trace with hash 907267985, now seen corresponding path program 1 times [2021-11-17 11:25:37,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:25:37,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506675647] [2021-11-17 11:25:37,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:25:37,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:25:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:25:38,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:38,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:25:38,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:25:38,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:38,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:25:38,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:25:38,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:38,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:25:38,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:38,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:25:38,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:38,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:25:38,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:38,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:25:38,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:38,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:25:38,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:38,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:25:38,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:38,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:25:38,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:25:38,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:38,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:25:38,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:38,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 11:25:38,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 11:25:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 11:25:38,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 11:25:38,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 11:25:38,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:38,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 11:25:38,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 11:25:38,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 11:25:38,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-11-17 11:25:38,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 11:25:38,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:38,251 INFO L134 CoverageAnalysis]: Checked inductivity of 1049 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1045 trivial. 0 not checked. [2021-11-17 11:25:38,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:25:38,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506675647] [2021-11-17 11:25:38,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506675647] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:25:38,252 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:25:38,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 11:25:38,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88828121] [2021-11-17 11:25:38,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:25:38,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 11:25:38,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:25:38,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 11:25:38,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 11:25:38,254 INFO L87 Difference]: Start difference. First operand 75912 states and 102376 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-17 11:25:40,334 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:25:52,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:25:52,949 INFO L93 Difference]: Finished difference Result 78072 states and 106196 transitions. [2021-11-17 11:25:52,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 11:25:52,949 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 255 [2021-11-17 11:25:52,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:25:53,337 INFO L225 Difference]: With dead ends: 78072 [2021-11-17 11:25:53,337 INFO L226 Difference]: Without dead ends: 78070 [2021-11-17 11:25:53,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 11:25:53,369 INFO L933 BasicCegarLoop]: 2830 mSDtfsCounter, 3057 mSDsluCounter, 5599 mSDsCounter, 0 mSdLazyCounter, 2339 mSolverCounterSat, 1263 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3367 SdHoareTripleChecker+Valid, 8429 SdHoareTripleChecker+Invalid, 3603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1263 IncrementalHoareTripleChecker+Valid, 2339 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2021-11-17 11:25:53,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3367 Valid, 8429 Invalid, 3603 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1263 Valid, 2339 Invalid, 1 Unknown, 0 Unchecked, 12.3s Time] [2021-11-17 11:25:53,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78070 states. [2021-11-17 11:25:55,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78070 to 75916. [2021-11-17 11:25:55,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75916 states, 50748 states have (on average 1.238531567746512) internal successors, (62853), 52533 states have internal predecessors, (62853), 19753 states have call successors, (19753), 5433 states have call predecessors, (19753), 5412 states have return successors, (19773), 19101 states have call predecessors, (19773), 19749 states have call successors, (19773) [2021-11-17 11:25:55,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75916 states to 75916 states and 102379 transitions. [2021-11-17 11:25:55,987 INFO L78 Accepts]: Start accepts. Automaton has 75916 states and 102379 transitions. Word has length 255 [2021-11-17 11:25:55,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:25:55,988 INFO L470 AbstractCegarLoop]: Abstraction has 75916 states and 102379 transitions. [2021-11-17 11:25:55,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-17 11:25:55,988 INFO L276 IsEmpty]: Start isEmpty. Operand 75916 states and 102379 transitions. [2021-11-17 11:25:55,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-11-17 11:25:55,996 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:25:55,996 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:25:55,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 11:25:55,997 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 11:25:55,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:25:55,997 INFO L85 PathProgramCache]: Analyzing trace with hash -85820363, now seen corresponding path program 1 times [2021-11-17 11:25:55,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:25:55,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989736443] [2021-11-17 11:25:55,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:25:55,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:25:56,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:25:56,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:56,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:25:56,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:56,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:25:56,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:56,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:25:56,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:25:56,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:56,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:25:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:56,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:25:56,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:25:56,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:56,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:25:56,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:56,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:25:56,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:25:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:25:56,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:25:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:56,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:25:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 11:25:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 11:25:56,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 11:25:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 11:25:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 11:25:56,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:25:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 11:25:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 11:25:56,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-17 11:25:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-17 11:25:56,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 11:25:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-17 11:25:56,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-11-17 11:25:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-17 11:25:56,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:25:56,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1068 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1057 trivial. 0 not checked. [2021-11-17 11:25:56,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:25:56,793 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989736443] [2021-11-17 11:25:56,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989736443] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:25:56,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:25:56,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 11:25:56,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160170770] [2021-11-17 11:25:56,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:25:56,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 11:25:56,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:25:56,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 11:25:56,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:25:56,795 INFO L87 Difference]: Start difference. First operand 75916 states and 102379 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-17 11:25:58,879 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:26:01,237 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:26:03,570 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:26:27,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:26:27,957 INFO L93 Difference]: Finished difference Result 190657 states and 258621 transitions. [2021-11-17 11:26:27,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 11:26:27,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 269 [2021-11-17 11:26:27,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:26:28,660 INFO L225 Difference]: With dead ends: 190657 [2021-11-17 11:26:28,661 INFO L226 Difference]: Without dead ends: 115788 [2021-11-17 11:26:28,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 11:26:28,847 INFO L933 BasicCegarLoop]: 5210 mSDtfsCounter, 3781 mSDsluCounter, 4911 mSDsCounter, 0 mSdLazyCounter, 4015 mSolverCounterSat, 3039 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4147 SdHoareTripleChecker+Valid, 10121 SdHoareTripleChecker+Invalid, 7057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3039 IncrementalHoareTripleChecker+Valid, 4015 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.0s IncrementalHoareTripleChecker+Time [2021-11-17 11:26:28,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4147 Valid, 10121 Invalid, 7057 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3039 Valid, 4015 Invalid, 3 Unknown, 0 Unchecked, 27.0s Time] [2021-11-17 11:26:28,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115788 states. [2021-11-17 11:26:32,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115788 to 112544. [2021-11-17 11:26:32,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112544 states, 75264 states have (on average 1.238108524659864) internal successors, (93185), 77873 states have internal predecessors, (93185), 29243 states have call successors, (29243), 8057 states have call predecessors, (29243), 8034 states have return successors, (29275), 28333 states have call predecessors, (29275), 29239 states have call successors, (29275) [2021-11-17 11:26:33,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112544 states to 112544 states and 151703 transitions. [2021-11-17 11:26:33,546 INFO L78 Accepts]: Start accepts. Automaton has 112544 states and 151703 transitions. Word has length 269 [2021-11-17 11:26:33,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:26:33,546 INFO L470 AbstractCegarLoop]: Abstraction has 112544 states and 151703 transitions. [2021-11-17 11:26:33,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-17 11:26:33,546 INFO L276 IsEmpty]: Start isEmpty. Operand 112544 states and 151703 transitions. [2021-11-17 11:26:33,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-11-17 11:26:33,552 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:26:33,552 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:26:33,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 11:26:33,553 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 11:26:33,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:26:33,553 INFO L85 PathProgramCache]: Analyzing trace with hash -841635193, now seen corresponding path program 1 times [2021-11-17 11:26:33,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:26:33,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93663916] [2021-11-17 11:26:33,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:26:33,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:26:33,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:26:34,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:26:34,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:26:34,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:26:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:26:34,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:26:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:26:34,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:26:34,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:26:34,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:26:34,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:26:34,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:26:34,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:26:34,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:26:34,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:26:34,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:26:34,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:26:34,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:26:34,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:26:34,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:26:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:26:34,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:26:34,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:26:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:26:34,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:26:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:26:34,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:26:34,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:26:34,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 11:26:34,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 11:26:34,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 11:26:34,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 11:26:34,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 11:26:34,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:26:34,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 11:26:34,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 11:26:34,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 11:26:34,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-11-17 11:26:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 11:26:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 11:26:34,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:34,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1053 trivial. 0 not checked. [2021-11-17 11:26:34,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:26:34,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93663916] [2021-11-17 11:26:34,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93663916] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:26:34,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:26:34,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 11:26:34,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292076979] [2021-11-17 11:26:34,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:26:34,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 11:26:34,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:26:34,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 11:26:34,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 11:26:34,518 INFO L87 Difference]: Start difference. First operand 112544 states and 151703 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-17 11:26:36,602 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:26:51,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:26:51,058 INFO L93 Difference]: Finished difference Result 115760 states and 157393 transitions. [2021-11-17 11:26:51,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 11:26:51,059 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 260 [2021-11-17 11:26:51,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:26:51,528 INFO L225 Difference]: With dead ends: 115760 [2021-11-17 11:26:51,529 INFO L226 Difference]: Without dead ends: 115758 [2021-11-17 11:26:51,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 11:26:51,584 INFO L933 BasicCegarLoop]: 2821 mSDtfsCounter, 3064 mSDsluCounter, 5580 mSDsCounter, 0 mSdLazyCounter, 2339 mSolverCounterSat, 1264 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3375 SdHoareTripleChecker+Valid, 8401 SdHoareTripleChecker+Invalid, 3604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1264 IncrementalHoareTripleChecker+Valid, 2339 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2021-11-17 11:26:51,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3375 Valid, 8401 Invalid, 3604 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1264 Valid, 2339 Invalid, 1 Unknown, 0 Unchecked, 12.7s Time] [2021-11-17 11:26:51,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115758 states. [2021-11-17 11:26:55,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115758 to 112548. [2021-11-17 11:26:55,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112548 states, 75267 states have (on average 1.238099034105252) internal successors, (93188), 77876 states have internal predecessors, (93188), 29243 states have call successors, (29243), 8058 states have call predecessors, (29243), 8035 states have return successors, (29275), 28333 states have call predecessors, (29275), 29239 states have call successors, (29275) [2021-11-17 11:26:56,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112548 states to 112548 states and 151706 transitions. [2021-11-17 11:26:56,480 INFO L78 Accepts]: Start accepts. Automaton has 112548 states and 151706 transitions. Word has length 260 [2021-11-17 11:26:56,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:26:56,480 INFO L470 AbstractCegarLoop]: Abstraction has 112548 states and 151706 transitions. [2021-11-17 11:26:56,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-17 11:26:56,480 INFO L276 IsEmpty]: Start isEmpty. Operand 112548 states and 151706 transitions. [2021-11-17 11:26:56,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-11-17 11:26:56,486 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:26:56,486 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:26:56,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 11:26:56,487 INFO L402 AbstractCegarLoop]: === Iteration 12 === 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 11:26:56,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:26:56,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1961799407, now seen corresponding path program 1 times [2021-11-17 11:26:56,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:26:56,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103312039] [2021-11-17 11:26:56,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:26:56,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:26:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:26:57,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:26:57,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:26:57,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:26:57,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:26:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:26:57,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:26:57,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:26:57,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:26:57,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:26:57,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:26:57,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:26:57,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:26:57,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:26:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:26:57,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:26:57,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:26:57,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:26:57,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:26:57,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:26:57,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:26:57,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:26:57,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:26:57,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:26:57,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:26:57,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:26:57,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:26:57,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:26:57,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 11:26:57,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 11:26:57,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 11:26:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 11:26:57,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 11:26:57,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:26:57,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 11:26:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 11:26:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 11:26:57,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-11-17 11:26:57,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 11:26:57,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 11:26:57,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 11:26:57,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:26:57,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1065 trivial. 0 not checked. [2021-11-17 11:26:57,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:26:57,479 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103312039] [2021-11-17 11:26:57,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103312039] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:26:57,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:26:57,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 11:26:57,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110381560] [2021-11-17 11:26:57,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:26:57,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 11:26:57,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:26:57,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 11:26:57,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 11:26:57,481 INFO L87 Difference]: Start difference. First operand 112548 states and 151706 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-17 11:26:59,560 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:27:13,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:27:13,932 INFO L93 Difference]: Finished difference Result 115764 states and 157396 transitions. [2021-11-17 11:27:13,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 11:27:13,933 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 265 [2021-11-17 11:27:13,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:27:14,535 INFO L225 Difference]: With dead ends: 115764 [2021-11-17 11:27:14,535 INFO L226 Difference]: Without dead ends: 115762 [2021-11-17 11:27:14,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 11:27:14,590 INFO L933 BasicCegarLoop]: 2822 mSDtfsCounter, 3064 mSDsluCounter, 5581 mSDsCounter, 0 mSdLazyCounter, 2339 mSolverCounterSat, 1259 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3376 SdHoareTripleChecker+Valid, 8403 SdHoareTripleChecker+Invalid, 3599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1259 IncrementalHoareTripleChecker+Valid, 2339 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2021-11-17 11:27:14,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3376 Valid, 8403 Invalid, 3599 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1259 Valid, 2339 Invalid, 1 Unknown, 0 Unchecked, 12.5s Time] [2021-11-17 11:27:14,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115762 states. [2021-11-17 11:27:18,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115762 to 112552. [2021-11-17 11:27:18,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112552 states, 75270 states have (on average 1.238089544307161) internal successors, (93191), 77879 states have internal predecessors, (93191), 29243 states have call successors, (29243), 8059 states have call predecessors, (29243), 8036 states have return successors, (29275), 28333 states have call predecessors, (29275), 29239 states have call successors, (29275) [2021-11-17 11:27:19,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112552 states to 112552 states and 151709 transitions. [2021-11-17 11:27:19,313 INFO L78 Accepts]: Start accepts. Automaton has 112552 states and 151709 transitions. Word has length 265 [2021-11-17 11:27:19,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:27:19,313 INFO L470 AbstractCegarLoop]: Abstraction has 112552 states and 151709 transitions. [2021-11-17 11:27:19,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-17 11:27:19,314 INFO L276 IsEmpty]: Start isEmpty. Operand 112552 states and 151709 transitions. [2021-11-17 11:27:19,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2021-11-17 11:27:19,320 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:27:19,320 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:19,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-17 11:27:19,320 INFO L402 AbstractCegarLoop]: === Iteration 13 === 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 11:27:19,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:27:19,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1120106824, now seen corresponding path program 1 times [2021-11-17 11:27:19,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:27:19,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566399121] [2021-11-17 11:27:19,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:27:19,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:27:19,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:19,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:27:19,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:19,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:27:19,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:19,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:27:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:19,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:27:19,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:19,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:27:19,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:19,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:27:19,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:19,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:27:19,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:19,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:27:19,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:19,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:27:19,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:19,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:27:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:19,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:27:19,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:19,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:27:19,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:19,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:27:19,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:19,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:27:19,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:19,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:27:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:27:20,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:27:20,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:27:20,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:27:20,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:27:20,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:27:20,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:27:20,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:27:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:27:20,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:27:20,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:27:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:27:20,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:27:20,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 11:27:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 11:27:20,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 11:27:20,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 11:27:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:27:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-11-17 11:27:20,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:27:20,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:27:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 11:27:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-17 11:27:20,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-11-17 11:27:20,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:27:20,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-11-17 11:27:20,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 11:27:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:27:20,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 11:27:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-11-17 11:27:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 11:27:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 11:27:20,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:27:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:27:20,218 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2021-11-17 11:27:20,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:27:20,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566399121] [2021-11-17 11:27:20,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566399121] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:27:20,219 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:27:20,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 11:27:20,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422547332] [2021-11-17 11:27:20,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:27:20,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 11:27:20,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:27:20,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 11:27:20,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:27:20,220 INFO L87 Difference]: Start difference. First operand 112552 states and 151709 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (41), 4 states have call predecessors, (41), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2021-11-17 11:27:22,306 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:27:24,659 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:27:26,976 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []