./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-ipw2x00-ipw2100.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 adae9e973a71be7ae6bae40bd619f2dd42436469ca3cae3ee4a6c75222eea08e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 09:33:26,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 09:33:26,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 09:33:26,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 09:33:26,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 09:33:26,842 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 09:33:26,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 09:33:26,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 09:33:26,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 09:33:26,852 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 09:33:26,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 09:33:26,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 09:33:26,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 09:33:26,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 09:33:26,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 09:33:26,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 09:33:26,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 09:33:26,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 09:33:26,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 09:33:26,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 09:33:26,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 09:33:26,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 09:33:26,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 09:33:26,878 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 09:33:26,880 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 09:33:26,884 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 09:33:26,884 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 09:33:26,885 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 09:33:26,886 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 09:33:26,887 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 09:33:26,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 09:33:26,888 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 09:33:26,889 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 09:33:26,890 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 09:33:26,891 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 09:33:26,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 09:33:26,892 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 09:33:26,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 09:33:26,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 09:33:26,893 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 09:33:26,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 09:33:26,894 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 09:33:26,914 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 09:33:26,918 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 09:33:26,918 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 09:33:26,918 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 09:33:26,919 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 09:33:26,920 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 09:33:26,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 09:33:26,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 09:33:26,920 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 09:33:26,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 09:33:26,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 09:33:26,922 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 09:33:26,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 09:33:26,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 09:33:26,922 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 09:33:26,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 09:33:26,922 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 09:33:26,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 09:33:26,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 09:33:26,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 09:33:26,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 09:33:26,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 09:33:26,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 09:33:26,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 09:33:26,924 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 09:33:26,924 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 09:33:26,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 09:33:26,925 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 09:33:26,926 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 09:33:26,926 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 09:33:26,926 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 09:33:26,926 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> adae9e973a71be7ae6bae40bd619f2dd42436469ca3cae3ee4a6c75222eea08e [2021-11-17 09:33:27,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 09:33:27,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 09:33:27,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 09:33:27,163 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 09:33:27,164 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 09:33:27,165 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i [2021-11-17 09:33:27,224 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e5a5be48/0a2762124e9846d3aee5cd3dd974dd71/FLAGd6f0bf75c [2021-11-17 09:33:28,084 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 09:33:28,085 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i [2021-11-17 09:33:28,140 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e5a5be48/0a2762124e9846d3aee5cd3dd974dd71/FLAGd6f0bf75c [2021-11-17 09:33:28,195 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e5a5be48/0a2762124e9846d3aee5cd3dd974dd71 [2021-11-17 09:33:28,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 09:33:28,201 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 09:33:28,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 09:33:28,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 09:33:28,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 09:33:28,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 09:33:28" (1/1) ... [2021-11-17 09:33:28,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b89118f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:33:28, skipping insertion in model container [2021-11-17 09:33:28,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 09:33:28" (1/1) ... [2021-11-17 09:33:28,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 09:33:28,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 09:33:34,322 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i[772474,772487] [2021-11-17 09:33:34,325 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i[772643,772656] [2021-11-17 09:33:34,325 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i[772810,772823] [2021-11-17 09:33:34,329 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i[772978,772991] [2021-11-17 09:33:34,367 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 09:33:34,415 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 09:33:34,960 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i[772474,772487] [2021-11-17 09:33:34,961 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i[772643,772656] [2021-11-17 09:33:34,961 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i[772810,772823] [2021-11-17 09:33:34,961 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i[772978,772991] [2021-11-17 09:33:34,972 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 09:33:35,219 INFO L208 MainTranslator]: Completed translation [2021-11-17 09:33:35,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:33:35 WrapperNode [2021-11-17 09:33:35,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 09:33:35,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 09:33:35,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 09:33:35,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 09:33:35,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:33:35" (1/1) ... [2021-11-17 09:33:35,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:33:35" (1/1) ... [2021-11-17 09:33:35,651 INFO L137 Inliner]: procedures = 710, calls = 11680, calls flagged for inlining = 309, calls inlined = 228, statements flattened = 12496 [2021-11-17 09:33:35,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 09:33:35,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 09:33:35,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 09:33:35,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 09:33:35,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:33:35" (1/1) ... [2021-11-17 09:33:35,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:33:35" (1/1) ... [2021-11-17 09:33:35,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:33:35" (1/1) ... [2021-11-17 09:33:35,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:33:35" (1/1) ... [2021-11-17 09:33:35,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:33:35" (1/1) ... [2021-11-17 09:33:35,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:33:35" (1/1) ... [2021-11-17 09:33:36,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:33:35" (1/1) ... [2021-11-17 09:33:36,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 09:33:36,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 09:33:36,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 09:33:36,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 09:33:36,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:33:35" (1/1) ... [2021-11-17 09:33:36,098 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 09:33:36,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 09:33:36,115 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 09:33:36,137 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 09:33:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-17 09:33:36,143 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-17 09:33:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 09:33:36,143 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 09:33:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure read_register [2021-11-17 09:33:36,143 INFO L138 BoogieDeclarations]: Found implementation of procedure read_register [2021-11-17 09:33:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_send_data [2021-11-17 09:33:36,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_send_data [2021-11-17 09:33:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure write_register_byte [2021-11-17 09:33:36,144 INFO L138 BoogieDeclarations]: Found implementation of procedure write_register_byte [2021-11-17 09:33:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 09:33:36,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 09:33:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-17 09:33:36,144 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-17 09:33:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2021-11-17 09:33:36,144 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2021-11-17 09:33:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_release_firmware [2021-11-17 09:33:36,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_release_firmware [2021-11-17 09:33:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_78 [2021-11-17 09:33:36,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_78 [2021-11-17 09:33:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-17 09:33:36,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-17 09:33:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_configure_security [2021-11-17 09:33:36,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_configure_security [2021-11-17 09:33:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-17 09:33:36,145 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-17 09:33:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-17 09:33:36,146 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-17 09:33:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_reset_adapter [2021-11-17 09:33:36,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_reset_adapter [2021-11-17 09:33:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_security_information [2021-11-17 09:33:36,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_security_information [2021-11-17 09:33:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-17 09:33:36,146 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-17 09:33:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-17 09:33:36,147 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-17 09:33:36,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-17 09:33:36,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-17 09:33:36,147 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-17 09:33:36,147 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-17 09:33:36,147 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-17 09:33:36,147 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-17 09:33:36,147 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_mandatory_bssid [2021-11-17 09:33:36,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_mandatory_bssid [2021-11-17 09:33:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 09:33:36,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 09:33:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_rfkill_set_hw_state [2021-11-17 09:33:36,148 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_rfkill_set_hw_state [2021-11-17 09:33:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_unregister [2021-11-17 09:33:36,148 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_unregister [2021-11-17 09:33:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_disable_adapter [2021-11-17 09:33:36,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_disable_adapter [2021-11-17 09:33:36,149 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-17 09:33:36,149 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-17 09:33:36,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 09:33:36,149 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_hw_send_command [2021-11-17 09:33:36,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_hw_send_command [2021-11-17 09:33:36,149 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-17 09:33:36,149 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-17 09:33:36,149 INFO L130 BoogieDeclarations]: Found specification of procedure read_nic_word [2021-11-17 09:33:36,149 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nic_word [2021-11-17 09:33:36,150 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-17 09:33:36,150 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-17 09:33:36,150 INFO L130 BoogieDeclarations]: Found specification of procedure isr_scan_complete [2021-11-17 09:33:36,150 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_scan_complete [2021-11-17 09:33:36,150 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_power_mode [2021-11-17 09:33:36,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_power_mode [2021-11-17 09:33:36,150 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 09:33:36,150 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 09:33:36,150 INFO L130 BoogieDeclarations]: Found specification of procedure write_nic_byte [2021-11-17 09:33:36,151 INFO L138 BoogieDeclarations]: Found implementation of procedure write_nic_byte [2021-11-17 09:33:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2021-11-17 09:33:36,151 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2021-11-17 09:33:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 09:33:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-17 09:33:36,151 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-17 09:33:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-17 09:33:36,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-17 09:33:36,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 09:33:36,152 INFO L130 BoogieDeclarations]: Found specification of procedure write_nic_dword [2021-11-17 09:33:36,152 INFO L138 BoogieDeclarations]: Found implementation of procedure write_nic_dword [2021-11-17 09:33:36,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-17 09:33:36,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-17 09:33:36,152 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_channel [2021-11-17 09:33:36,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_channel [2021-11-17 09:33:36,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 09:33:36,152 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-17 09:33:36,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-17 09:33:36,153 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_up [2021-11-17 09:33:36,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_up [2021-11-17 09:33:36,153 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_send_commands [2021-11-17 09:33:36,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_send_commands [2021-11-17 09:33:36,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 09:33:36,153 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 09:33:36,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-17 09:33:36,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-17 09:33:36,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-17 09:33:36,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-17 09:33:36,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-17 09:33:36,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-17 09:33:36,154 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-17 09:33:36,154 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-17 09:33:36,154 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-17 09:33:36,154 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-17 09:33:36,154 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_enable_adapter [2021-11-17 09:33:36,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_enable_adapter [2021-11-17 09:33:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-17 09:33:36,155 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-17 09:33:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_scan_options [2021-11-17 09:33:36,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_scan_options [2021-11-17 09:33:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure libipw_txb_free [2021-11-17 09:33:36,155 INFO L138 BoogieDeclarations]: Found implementation of procedure libipw_txb_free [2021-11-17 09:33:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_reset_fatalerror [2021-11-17 09:33:36,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_reset_fatalerror [2021-11-17 09:33:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-17 09:33:36,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-17 09:33:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 09:33:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 09:33:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_tx_rates [2021-11-17 09:33:36,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_tx_rates [2021-11-17 09:33:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 09:33:36,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 09:33:36,157 INFO L130 BoogieDeclarations]: Found specification of procedure print_ssid [2021-11-17 09:33:36,157 INFO L138 BoogieDeclarations]: Found implementation of procedure print_ssid [2021-11-17 09:33:36,157 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 09:33:36,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 09:33:36,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 09:33:36,157 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-11-17 09:33:36,157 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-11-17 09:33:36,157 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-17 09:33:36,157 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_snapshot_free [2021-11-17 09:33:36,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_snapshot_free [2021-11-17 09:33:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-17 09:33:36,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-17 09:33:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure snprint_line [2021-11-17 09:33:36,158 INFO L138 BoogieDeclarations]: Found implementation of procedure snprint_line [2021-11-17 09:33:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-17 09:33:36,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-17 09:33:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_reset [2021-11-17 09:33:36,158 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_reset [2021-11-17 09:33:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-17 09:33:36,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-17 09:33:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-17 09:33:36,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-17 09:33:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 09:33:36,159 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 09:33:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure sw_reset_and_clock [2021-11-17 09:33:36,159 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_reset_and_clock [2021-11-17 09:33:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_enable_interrupts [2021-11-17 09:33:36,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_enable_interrupts [2021-11-17 09:33:36,160 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-11-17 09:33:36,160 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-11-17 09:33:36,160 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_resume [2021-11-17 09:33:36,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_resume [2021-11-17 09:33:36,160 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2021-11-17 09:33:36,160 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2021-11-17 09:33:36,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 09:33:36,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 09:33:36,160 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_send_event [2021-11-17 09:33:36,161 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_send_event [2021-11-17 09:33:36,161 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_pci_remove_one [2021-11-17 09:33:36,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_pci_remove_one [2021-11-17 09:33:36,161 INFO L130 BoogieDeclarations]: Found specification of procedure bd_queue_free [2021-11-17 09:33:36,161 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_queue_free [2021-11-17 09:33:36,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-17 09:33:36,161 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-17 09:33:36,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 09:33:36,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 09:33:36,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 09:33:36,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 09:33:36,162 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_alloc_skb [2021-11-17 09:33:36,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_alloc_skb [2021-11-17 09:33:36,162 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-17 09:33:36,162 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-17 09:33:36,162 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_get_ordinal [2021-11-17 09:33:36,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_get_ordinal [2021-11-17 09:33:36,162 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_hw_stop_adapter [2021-11-17 09:33:36,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_hw_stop_adapter [2021-11-17 09:33:36,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-17 09:33:36,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-17 09:33:36,163 INFO L130 BoogieDeclarations]: Found specification of procedure write_register [2021-11-17 09:33:36,163 INFO L138 BoogieDeclarations]: Found implementation of procedure write_register [2021-11-17 09:33:36,163 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_hw_set_gpio [2021-11-17 09:33:36,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_hw_set_gpio [2021-11-17 09:33:36,163 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-17 09:33:36,163 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-17 09:33:36,163 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_down [2021-11-17 09:33:36,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_down [2021-11-17 09:33:36,164 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_close [2021-11-17 09:33:36,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_close [2021-11-17 09:33:36,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_low_lock_of_ipw2100_priv [2021-11-17 09:33:36,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_low_lock_of_ipw2100_priv [2021-11-17 09:33:36,164 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_wait_for_card_state [2021-11-17 09:33:36,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_wait_for_card_state [2021-11-17 09:33:36,164 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_rf_kill [2021-11-17 09:33:36,164 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_rf_kill [2021-11-17 09:33:36,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-17 09:33:36,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-17 09:33:36,165 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-17 09:33:36,165 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-17 09:33:36,165 INFO L130 BoogieDeclarations]: Found specification of procedure read_register_byte [2021-11-17 09:33:36,165 INFO L138 BoogieDeclarations]: Found implementation of procedure read_register_byte [2021-11-17 09:33:36,165 INFO L130 BoogieDeclarations]: Found specification of procedure status_queue_free [2021-11-17 09:33:36,165 INFO L138 BoogieDeclarations]: Found implementation of procedure status_queue_free [2021-11-17 09:33:36,165 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-17 09:33:36,166 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-17 09:33:36,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 09:33:36,166 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 09:33:36,166 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-17 09:33:36,166 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-17 09:33:36,166 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_rx_free [2021-11-17 09:33:36,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_rx_free [2021-11-17 09:33:36,166 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-17 09:33:36,166 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-17 09:33:36,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-17 09:33:36,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-17 09:33:36,167 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-17 09:33:36,167 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-17 09:33:36,167 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-17 09:33:36,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-17 09:33:36,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 09:33:36,167 INFO L130 BoogieDeclarations]: Found specification of procedure mod_delayed_work [2021-11-17 09:33:36,167 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_delayed_work [2021-11-17 09:33:36,167 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-17 09:33:36,168 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-17 09:33:36,168 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_shutdown [2021-11-17 09:33:36,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_shutdown [2021-11-17 09:33:36,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 09:33:36,168 INFO L130 BoogieDeclarations]: Found specification of procedure write_nic_word [2021-11-17 09:33:36,168 INFO L138 BoogieDeclarations]: Found implementation of procedure write_nic_word [2021-11-17 09:33:36,168 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_association_lost [2021-11-17 09:33:36,168 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_association_lost [2021-11-17 09:33:36,168 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_free [2021-11-17 09:33:36,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_free [2021-11-17 09:33:36,169 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_mac_address [2021-11-17 09:33:36,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_mac_address [2021-11-17 09:33:36,169 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_essid [2021-11-17 09:33:36,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_essid [2021-11-17 09:33:36,169 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2021-11-17 09:33:36,169 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2021-11-17 09:33:36,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 09:33:36,169 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_disable_interrupts [2021-11-17 09:33:36,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_disable_interrupts [2021-11-17 09:33:36,170 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-17 09:33:36,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-17 09:33:36,170 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_rts_threshold [2021-11-17 09:33:36,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_rts_threshold [2021-11-17 09:33:36,170 INFO L130 BoogieDeclarations]: Found specification of procedure read_nic_byte [2021-11-17 09:33:36,170 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nic_byte [2021-11-17 09:33:36,170 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-17 09:33:36,170 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-17 09:33:36,170 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 09:33:36,171 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 09:33:36,171 INFO L130 BoogieDeclarations]: Found specification of procedure free_libipw [2021-11-17 09:33:36,171 INFO L138 BoogieDeclarations]: Found implementation of procedure free_libipw [2021-11-17 09:33:36,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-17 09:33:36,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-17 09:33:36,171 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-17 09:33:36,171 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-17 09:33:36,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-17 09:33:36,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-17 09:33:36,172 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_msg_free [2021-11-17 09:33:36,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_msg_free [2021-11-17 09:33:36,172 INFO L130 BoogieDeclarations]: Found specification of procedure printk_buf [2021-11-17 09:33:36,172 INFO L138 BoogieDeclarations]: Found implementation of procedure printk_buf [2021-11-17 09:33:36,172 INFO L130 BoogieDeclarations]: Found specification of procedure ipw_ethtool_get_drvinfo [2021-11-17 09:33:36,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw_ethtool_get_drvinfo [2021-11-17 09:33:36,172 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-11-17 09:33:36,172 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-11-17 09:33:36,172 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_tx_power [2021-11-17 09:33:36,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_tx_power [2021-11-17 09:33:36,173 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-17 09:33:36,173 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-17 09:33:36,173 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2021-11-17 09:33:36,173 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2021-11-17 09:33:36,173 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-17 09:33:36,173 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-17 09:33:36,173 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2021-11-17 09:33:36,173 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2021-11-17 09:33:36,173 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_system_config [2021-11-17 09:33:36,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_system_config [2021-11-17 09:33:36,174 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_kill_works [2021-11-17 09:33:36,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_kill_works [2021-11-17 09:33:36,174 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2021-11-17 09:33:36,174 INFO L138 BoogieDeclarations]: Found implementation of procedure strnlen [2021-11-17 09:33:36,174 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 09:33:36,174 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 09:33:36,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 09:33:36,174 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_queues_free [2021-11-17 09:33:36,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_queues_free [2021-11-17 09:33:36,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 09:33:36,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 09:33:36,175 INFO L130 BoogieDeclarations]: Found specification of procedure rf_kill_active [2021-11-17 09:33:36,175 INFO L138 BoogieDeclarations]: Found implementation of procedure rf_kill_active [2021-11-17 09:33:36,175 INFO L130 BoogieDeclarations]: Found specification of procedure get_seconds [2021-11-17 09:33:36,175 INFO L138 BoogieDeclarations]: Found implementation of procedure get_seconds [2021-11-17 09:33:36,175 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-17 09:33:36,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-17 09:33:36,175 INFO L130 BoogieDeclarations]: Found specification of procedure bd_queue_allocate [2021-11-17 09:33:36,176 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_queue_allocate [2021-11-17 09:33:36,176 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-17 09:33:36,176 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-17 09:33:36,176 INFO L130 BoogieDeclarations]: Found specification of procedure libipw_priv [2021-11-17 09:33:36,176 INFO L138 BoogieDeclarations]: Found implementation of procedure libipw_priv [2021-11-17 09:33:36,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_91 [2021-11-17 09:33:36,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_91 [2021-11-17 09:33:36,176 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-17 09:33:36,176 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-17 09:33:36,176 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-17 09:33:36,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-17 09:33:36,177 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_timeout [2021-11-17 09:33:36,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_timeout [2021-11-17 09:33:36,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-17 09:33:36,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-17 09:33:36,177 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-17 09:33:36,177 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-17 09:33:36,177 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-17 09:33:36,177 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-17 09:33:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-17 09:33:36,178 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-17 09:33:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-17 09:33:36,178 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-17 09:33:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_open [2021-11-17 09:33:36,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_open [2021-11-17 09:33:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-17 09:33:36,179 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-17 09:33:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_queues_initialize [2021-11-17 09:33:36,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_queues_initialize [2021-11-17 09:33:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-17 09:33:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_low_lock_of_ipw2100_priv [2021-11-17 09:33:36,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_low_lock_of_ipw2100_priv [2021-11-17 09:33:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure pm_qos_update_request [2021-11-17 09:33:36,179 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_qos_update_request [2021-11-17 09:33:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_associated [2021-11-17 09:33:36,180 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_associated [2021-11-17 09:33:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 09:33:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_scanning [2021-11-17 09:33:36,180 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_scanning [2021-11-17 09:33:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure read_nic_dword [2021-11-17 09:33:36,180 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nic_dword [2021-11-17 09:33:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-17 09:33:36,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-17 09:33:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-17 09:33:36,180 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-17 09:33:36,181 INFO L130 BoogieDeclarations]: Found specification of procedure bd_queue_initialize [2021-11-17 09:33:36,181 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_queue_initialize [2021-11-17 09:33:36,181 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_start_scan [2021-11-17 09:33:36,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_start_scan [2021-11-17 09:33:36,181 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-17 09:33:36,181 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-17 09:33:37,142 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 09:33:37,152 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 09:33:47,136 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 09:35:53,444 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 09:35:53,463 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 09:35:53,463 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-17 09:35:53,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 09:35:53 BoogieIcfgContainer [2021-11-17 09:35:53,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 09:35:53,468 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 09:35:53,468 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 09:35:53,470 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 09:35:53,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 09:33:28" (1/3) ... [2021-11-17 09:35:53,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51919999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 09:35:53, skipping insertion in model container [2021-11-17 09:35:53,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:33:35" (2/3) ... [2021-11-17 09:35:53,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51919999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 09:35:53, skipping insertion in model container [2021-11-17 09:35:53,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 09:35:53" (3/3) ... [2021-11-17 09:35:53,472 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i [2021-11-17 09:35:53,476 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 09:35:53,476 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-17 09:35:53,527 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 09:35:53,540 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 09:35:53,541 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-17 09:35:53,595 INFO L276 IsEmpty]: Start isEmpty. Operand has 3484 states, 2462 states have (on average 1.3298131600324938) internal successors, (3274), 2490 states have internal predecessors, (3274), 853 states have call successors, (853), 166 states have call predecessors, (853), 165 states have return successors, (849), 847 states have call predecessors, (849), 849 states have call successors, (849) [2021-11-17 09:35:53,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-17 09:35:53,600 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:35:53,600 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-11-17 09:35:53,601 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 09:35:53,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:35:53,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1656102450, now seen corresponding path program 1 times [2021-11-17 09:35:53,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:35:53,614 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851215558] [2021-11-17 09:35:53,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:35:53,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:35:54,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:54,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:35:54,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:54,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:35:54,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:54,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 09:35:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:54,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:35:54,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:54,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-17 09:35:54,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:54,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 09:35:54,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:54,874 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-17 09:35:54,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:35:54,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851215558] [2021-11-17 09:35:54,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851215558] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:35:54,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:35:54,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:35:54,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535638350] [2021-11-17 09:35:54,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:35:54,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:35:54,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:35:54,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:35:54,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:35:54,916 INFO L87 Difference]: Start difference. First operand has 3484 states, 2462 states have (on average 1.3298131600324938) internal successors, (3274), 2490 states have internal predecessors, (3274), 853 states have call successors, (853), 166 states have call predecessors, (853), 165 states have return successors, (849), 847 states have call predecessors, (849), 849 states have call successors, (849) Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-17 09:35:55,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:35:55,555 INFO L93 Difference]: Finished difference Result 6940 states and 10364 transitions. [2021-11-17 09:35:55,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:35:55,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2021-11-17 09:35:55,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:35:55,590 INFO L225 Difference]: With dead ends: 6940 [2021-11-17 09:35:55,590 INFO L226 Difference]: Without dead ends: 3473 [2021-11-17 09:35:55,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 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 09:35:55,622 INFO L933 BasicCegarLoop]: 4953 mSDtfsCounter, 4926 mSDsluCounter, 9890 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4941 SdHoareTripleChecker+Valid, 14843 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-17 09:35:55,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4941 Valid, 14843 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-17 09:35:55,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3473 states. [2021-11-17 09:35:55,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3473 to 3473. [2021-11-17 09:35:55,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3473 states, 2456 states have (on average 1.3236970684039089) internal successors, (3251), 2483 states have internal predecessors, (3251), 849 states have call successors, (849), 166 states have call predecessors, (849), 165 states have return successors, (846), 844 states have call predecessors, (846), 846 states have call successors, (846) [2021-11-17 09:35:55,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3473 states to 3473 states and 4946 transitions. [2021-11-17 09:35:55,822 INFO L78 Accepts]: Start accepts. Automaton has 3473 states and 4946 transitions. Word has length 51 [2021-11-17 09:35:55,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:35:55,823 INFO L470 AbstractCegarLoop]: Abstraction has 3473 states and 4946 transitions. [2021-11-17 09:35:55,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-17 09:35:55,823 INFO L276 IsEmpty]: Start isEmpty. Operand 3473 states and 4946 transitions. [2021-11-17 09:35:55,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-17 09:35:55,827 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:35:55,827 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:35:55,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 09:35:55,828 INFO L402 AbstractCegarLoop]: === Iteration 2 === 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 09:35:55,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:35:55,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1570512369, now seen corresponding path program 1 times [2021-11-17 09:35:55,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:35:55,831 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310487119] [2021-11-17 09:35:55,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:35:55,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:35:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:56,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:35:56,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:56,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:35:56,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:56,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 09:35:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:56,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:35:56,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:56,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-17 09:35:56,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:56,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 09:35:56,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:56,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 09:35:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:56,550 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-17 09:35:56,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:35:56,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310487119] [2021-11-17 09:35:56,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310487119] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:35:56,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:35:56,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:35:56,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861492552] [2021-11-17 09:35:56,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:35:56,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:35:56,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:35:56,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:35:56,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:35:56,553 INFO L87 Difference]: Start difference. First operand 3473 states and 4946 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-17 09:35:56,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:35:56,981 INFO L93 Difference]: Finished difference Result 3479 states and 4951 transitions. [2021-11-17 09:35:56,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:35:56,982 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 56 [2021-11-17 09:35:56,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:35:56,996 INFO L225 Difference]: With dead ends: 3479 [2021-11-17 09:35:56,996 INFO L226 Difference]: Without dead ends: 3477 [2021-11-17 09:35:56,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:35:56,998 INFO L933 BasicCegarLoop]: 4943 mSDtfsCounter, 4909 mSDsluCounter, 9864 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4922 SdHoareTripleChecker+Valid, 14807 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 09:35:56,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4922 Valid, 14807 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 09:35:57,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3477 states. [2021-11-17 09:35:57,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3477 to 3477. [2021-11-17 09:35:57,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3477 states, 2459 states have (on average 1.3233021553477022) internal successors, (3254), 2486 states have internal predecessors, (3254), 849 states have call successors, (849), 167 states have call predecessors, (849), 166 states have return successors, (846), 844 states have call predecessors, (846), 846 states have call successors, (846) [2021-11-17 09:35:57,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3477 states to 3477 states and 4949 transitions. [2021-11-17 09:35:57,107 INFO L78 Accepts]: Start accepts. Automaton has 3477 states and 4949 transitions. Word has length 56 [2021-11-17 09:35:57,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:35:57,108 INFO L470 AbstractCegarLoop]: Abstraction has 3477 states and 4949 transitions. [2021-11-17 09:35:57,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-17 09:35:57,108 INFO L276 IsEmpty]: Start isEmpty. Operand 3477 states and 4949 transitions. [2021-11-17 09:35:57,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-17 09:35:57,110 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:35:57,110 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-17 09:35:57,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 09:35:57,110 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:35:57,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:35:57,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1624893586, now seen corresponding path program 1 times [2021-11-17 09:35:57,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:35:57,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864629025] [2021-11-17 09:35:57,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:35:57,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:35:57,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:57,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:35:57,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:57,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:35:57,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:57,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 09:35:57,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:57,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:35:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:57,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-17 09:35:57,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:57,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 09:35:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:57,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 09:35:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:57,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 09:35:57,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:57,749 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-17 09:35:57,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:35:57,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864629025] [2021-11-17 09:35:57,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864629025] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:35:57,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:35:57,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:35:57,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755874330] [2021-11-17 09:35:57,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:35:57,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:35:57,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:35:57,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:35:57,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:35:57,752 INFO L87 Difference]: Start difference. First operand 3477 states and 4949 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-17 09:35:58,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:35:58,286 INFO L93 Difference]: Finished difference Result 3483 states and 4954 transitions. [2021-11-17 09:35:58,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:35:58,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 61 [2021-11-17 09:35:58,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:35:58,300 INFO L225 Difference]: With dead ends: 3483 [2021-11-17 09:35:58,301 INFO L226 Difference]: Without dead ends: 3481 [2021-11-17 09:35:58,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:35:58,303 INFO L933 BasicCegarLoop]: 4943 mSDtfsCounter, 4909 mSDsluCounter, 9864 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4921 SdHoareTripleChecker+Valid, 14807 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-17 09:35:58,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4921 Valid, 14807 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-17 09:35:58,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3481 states. [2021-11-17 09:35:58,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3481 to 3481. [2021-11-17 09:35:58,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3481 states, 2462 states have (on average 1.3229082047116165) internal successors, (3257), 2489 states have internal predecessors, (3257), 849 states have call successors, (849), 168 states have call predecessors, (849), 167 states have return successors, (846), 844 states have call predecessors, (846), 846 states have call successors, (846) [2021-11-17 09:35:58,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3481 states to 3481 states and 4952 transitions. [2021-11-17 09:35:58,416 INFO L78 Accepts]: Start accepts. Automaton has 3481 states and 4952 transitions. Word has length 61 [2021-11-17 09:35:58,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:35:58,417 INFO L470 AbstractCegarLoop]: Abstraction has 3481 states and 4952 transitions. [2021-11-17 09:35:58,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-17 09:35:58,417 INFO L276 IsEmpty]: Start isEmpty. Operand 3481 states and 4952 transitions. [2021-11-17 09:35:58,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-17 09:35:58,421 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:35:58,422 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2021-11-17 09:35:58,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 09:35:58,422 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:35:58,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:35:58,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1487234095, now seen corresponding path program 1 times [2021-11-17 09:35:58,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:35:58,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744583312] [2021-11-17 09:35:58,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:35:58,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:35:58,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:58,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:35:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:58,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:35:58,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:58,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 09:35:58,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:58,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:35:58,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:59,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-17 09:35:59,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:59,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 09:35:59,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:59,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 09:35:59,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:59,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 09:35:59,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:59,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 09:35:59,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:59,053 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-17 09:35:59,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:35:59,053 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744583312] [2021-11-17 09:35:59,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744583312] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:35:59,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:35:59,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:35:59,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177876708] [2021-11-17 09:35:59,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:35:59,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:35:59,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:35:59,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:35:59,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:35:59,055 INFO L87 Difference]: Start difference. First operand 3481 states and 4952 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-17 09:35:59,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:35:59,464 INFO L93 Difference]: Finished difference Result 3487 states and 4957 transitions. [2021-11-17 09:35:59,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:35:59,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 66 [2021-11-17 09:35:59,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:35:59,480 INFO L225 Difference]: With dead ends: 3487 [2021-11-17 09:35:59,480 INFO L226 Difference]: Without dead ends: 3485 [2021-11-17 09:35:59,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:35:59,483 INFO L933 BasicCegarLoop]: 4943 mSDtfsCounter, 4909 mSDsluCounter, 9864 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4920 SdHoareTripleChecker+Valid, 14807 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 09:35:59,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4920 Valid, 14807 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 09:35:59,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3485 states. [2021-11-17 09:35:59,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3485 to 3485. [2021-11-17 09:35:59,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3485 states, 2465 states have (on average 1.3225152129817443) internal successors, (3260), 2492 states have internal predecessors, (3260), 849 states have call successors, (849), 169 states have call predecessors, (849), 168 states have return successors, (846), 844 states have call predecessors, (846), 846 states have call successors, (846) [2021-11-17 09:35:59,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3485 states to 3485 states and 4955 transitions. [2021-11-17 09:35:59,616 INFO L78 Accepts]: Start accepts. Automaton has 3485 states and 4955 transitions. Word has length 66 [2021-11-17 09:35:59,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:35:59,617 INFO L470 AbstractCegarLoop]: Abstraction has 3485 states and 4955 transitions. [2021-11-17 09:35:59,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-17 09:35:59,618 INFO L276 IsEmpty]: Start isEmpty. Operand 3485 states and 4955 transitions. [2021-11-17 09:35:59,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-17 09:35:59,620 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:35:59,620 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 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] [2021-11-17 09:35:59,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 09:35:59,621 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:35:59,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:35:59,621 INFO L85 PathProgramCache]: Analyzing trace with hash -2006616818, now seen corresponding path program 1 times [2021-11-17 09:35:59,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:35:59,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050845746] [2021-11-17 09:35:59,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:35:59,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:35:59,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:00,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:36:00,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:00,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:36:00,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:00,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 09:36:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:00,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:36:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:00,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-17 09:36:00,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:00,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 09:36:00,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:00,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 09:36:00,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:00,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 09:36:00,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:00,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 09:36:00,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:00,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 09:36:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:00,250 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-17 09:36:00,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:36:00,250 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050845746] [2021-11-17 09:36:00,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050845746] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:36:00,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:36:00,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:36:00,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240417734] [2021-11-17 09:36:00,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:36:00,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:36:00,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:36:00,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:36:00,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:36:00,253 INFO L87 Difference]: Start difference. First operand 3485 states and 4955 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-17 09:36:00,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:36:00,663 INFO L93 Difference]: Finished difference Result 3491 states and 4960 transitions. [2021-11-17 09:36:00,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:36:00,664 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 71 [2021-11-17 09:36:00,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:36:00,682 INFO L225 Difference]: With dead ends: 3491 [2021-11-17 09:36:00,682 INFO L226 Difference]: Without dead ends: 3489 [2021-11-17 09:36:00,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:36:00,686 INFO L933 BasicCegarLoop]: 4943 mSDtfsCounter, 4909 mSDsluCounter, 9864 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4919 SdHoareTripleChecker+Valid, 14807 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 09:36:00,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4919 Valid, 14807 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 09:36:00,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3489 states. [2021-11-17 09:36:00,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3489 to 3489. [2021-11-17 09:36:00,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3489 states, 2468 states have (on average 1.3221231766612642) internal successors, (3263), 2495 states have internal predecessors, (3263), 849 states have call successors, (849), 170 states have call predecessors, (849), 169 states have return successors, (846), 844 states have call predecessors, (846), 846 states have call successors, (846) [2021-11-17 09:36:00,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3489 states to 3489 states and 4958 transitions. [2021-11-17 09:36:00,797 INFO L78 Accepts]: Start accepts. Automaton has 3489 states and 4958 transitions. Word has length 71 [2021-11-17 09:36:00,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:36:00,797 INFO L470 AbstractCegarLoop]: Abstraction has 3489 states and 4958 transitions. [2021-11-17 09:36:00,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-17 09:36:00,798 INFO L276 IsEmpty]: Start isEmpty. Operand 3489 states and 4958 transitions. [2021-11-17 09:36:00,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-17 09:36:00,799 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:36:00,799 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:36:00,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 09:36:00,800 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 09:36:00,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:36:00,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1792438847, now seen corresponding path program 1 times [2021-11-17 09:36:00,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:36:00,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028645864] [2021-11-17 09:36:00,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:36:00,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:36:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:01,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:36:01,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:01,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:36:01,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:01,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 09:36:01,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:01,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:36:01,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:01,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-17 09:36:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:01,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 09:36:01,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:01,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-17 09:36:01,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:01,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 09:36:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:01,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 09:36:01,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:01,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 09:36:01,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:01,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-17 09:36:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:01,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 09:36:01,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:01,482 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-11-17 09:36:01,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:36:01,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028645864] [2021-11-17 09:36:01,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028645864] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:36:01,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:36:01,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:36:01,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236513740] [2021-11-17 09:36:01,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:36:01,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:36:01,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:36:01,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:36:01,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:36:01,484 INFO L87 Difference]: Start difference. First operand 3489 states and 4958 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-17 09:36:02,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:36:02,021 INFO L93 Difference]: Finished difference Result 3495 states and 4963 transitions. [2021-11-17 09:36:02,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:36:02,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 91 [2021-11-17 09:36:02,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:36:02,035 INFO L225 Difference]: With dead ends: 3495 [2021-11-17 09:36:02,035 INFO L226 Difference]: Without dead ends: 3493 [2021-11-17 09:36:02,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:36:02,038 INFO L933 BasicCegarLoop]: 4943 mSDtfsCounter, 4897 mSDsluCounter, 9864 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4906 SdHoareTripleChecker+Valid, 14807 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 09:36:02,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4906 Valid, 14807 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 09:36:02,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3493 states. [2021-11-17 09:36:02,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3493 to 3493. [2021-11-17 09:36:02,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3493 states, 2471 states have (on average 1.321732092270336) internal successors, (3266), 2498 states have internal predecessors, (3266), 849 states have call successors, (849), 171 states have call predecessors, (849), 170 states have return successors, (846), 844 states have call predecessors, (846), 846 states have call successors, (846) [2021-11-17 09:36:02,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3493 states to 3493 states and 4961 transitions. [2021-11-17 09:36:02,147 INFO L78 Accepts]: Start accepts. Automaton has 3493 states and 4961 transitions. Word has length 91 [2021-11-17 09:36:02,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:36:02,148 INFO L470 AbstractCegarLoop]: Abstraction has 3493 states and 4961 transitions. [2021-11-17 09:36:02,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-17 09:36:02,148 INFO L276 IsEmpty]: Start isEmpty. Operand 3493 states and 4961 transitions. [2021-11-17 09:36:02,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-17 09:36:02,152 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:36:02,153 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:36:02,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 09:36:02,153 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 09:36:02,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:36:02,153 INFO L85 PathProgramCache]: Analyzing trace with hash -452302690, now seen corresponding path program 1 times [2021-11-17 09:36:02,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:36:02,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875007612] [2021-11-17 09:36:02,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:36:02,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:36:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:02,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:36:02,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:02,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:36:02,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:02,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 09:36:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:02,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:36:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:02,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-17 09:36:02,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:02,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 09:36:02,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:02,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-17 09:36:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:02,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 09:36:02,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:02,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 09:36:02,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:02,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 09:36:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:02,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-17 09:36:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:02,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 09:36:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:02,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 09:36:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:02,785 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-11-17 09:36:02,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:36:02,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875007612] [2021-11-17 09:36:02,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875007612] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:36:02,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:36:02,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:36:02,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580854227] [2021-11-17 09:36:02,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:36:02,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:36:02,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:36:02,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:36:02,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:36:02,788 INFO L87 Difference]: Start difference. First operand 3493 states and 4961 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-17 09:36:03,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:36:03,187 INFO L93 Difference]: Finished difference Result 3499 states and 4966 transitions. [2021-11-17 09:36:03,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:36:03,188 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 96 [2021-11-17 09:36:03,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:36:03,202 INFO L225 Difference]: With dead ends: 3499 [2021-11-17 09:36:03,202 INFO L226 Difference]: Without dead ends: 3497 [2021-11-17 09:36:03,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:36:03,205 INFO L933 BasicCegarLoop]: 4943 mSDtfsCounter, 4897 mSDsluCounter, 9864 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4905 SdHoareTripleChecker+Valid, 14807 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 09:36:03,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4905 Valid, 14807 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 09:36:03,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3497 states. [2021-11-17 09:36:03,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3497 to 3497. [2021-11-17 09:36:03,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3497 states, 2474 states have (on average 1.3213419563459985) internal successors, (3269), 2501 states have internal predecessors, (3269), 849 states have call successors, (849), 172 states have call predecessors, (849), 171 states have return successors, (846), 844 states have call predecessors, (846), 846 states have call successors, (846) [2021-11-17 09:36:03,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3497 states to 3497 states and 4964 transitions. [2021-11-17 09:36:03,316 INFO L78 Accepts]: Start accepts. Automaton has 3497 states and 4964 transitions. Word has length 96 [2021-11-17 09:36:03,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:36:03,316 INFO L470 AbstractCegarLoop]: Abstraction has 3497 states and 4964 transitions. [2021-11-17 09:36:03,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-17 09:36:03,316 INFO L276 IsEmpty]: Start isEmpty. Operand 3497 states and 4964 transitions. [2021-11-17 09:36:03,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-17 09:36:03,317 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:36:03,318 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:36:03,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 09:36:03,318 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 09:36:03,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:36:03,318 INFO L85 PathProgramCache]: Analyzing trace with hash -86120543, now seen corresponding path program 1 times [2021-11-17 09:36:03,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:36:03,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847419176] [2021-11-17 09:36:03,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:36:03,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:36:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:03,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:36:03,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:03,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:36:03,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:03,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 09:36:03,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:03,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:36:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:03,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-17 09:36:03,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:03,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 09:36:03,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:03,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-17 09:36:03,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:03,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 09:36:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:03,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 09:36:03,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:03,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 09:36:03,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:03,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-17 09:36:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:03,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 09:36:03,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:04,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 09:36:04,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:04,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 09:36:04,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:04,023 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-17 09:36:04,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:36:04,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847419176] [2021-11-17 09:36:04,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847419176] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:36:04,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:36:04,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:36:04,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321917937] [2021-11-17 09:36:04,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:36:04,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:36:04,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:36:04,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:36:04,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:36:04,025 INFO L87 Difference]: Start difference. First operand 3497 states and 4964 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-17 09:36:04,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:36:04,478 INFO L93 Difference]: Finished difference Result 3634 states and 5109 transitions. [2021-11-17 09:36:04,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:36:04,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 101 [2021-11-17 09:36:04,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:36:04,512 INFO L225 Difference]: With dead ends: 3634 [2021-11-17 09:36:04,513 INFO L226 Difference]: Without dead ends: 3632 [2021-11-17 09:36:04,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:36:04,518 INFO L933 BasicCegarLoop]: 5028 mSDtfsCounter, 4499 mSDsluCounter, 10570 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4506 SdHoareTripleChecker+Valid, 15598 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 09:36:04,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4506 Valid, 15598 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 09:36:04,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3632 states. [2021-11-17 09:36:04,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3632 to 3632. [2021-11-17 09:36:04,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3632 states, 2569 states have (on average 1.314908524717789) internal successors, (3378), 2597 states have internal predecessors, (3378), 866 states have call successors, (866), 195 states have call predecessors, (866), 194 states have return successors, (863), 861 states have call predecessors, (863), 863 states have call successors, (863) [2021-11-17 09:36:04,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3632 states to 3632 states and 5107 transitions. [2021-11-17 09:36:04,671 INFO L78 Accepts]: Start accepts. Automaton has 3632 states and 5107 transitions. Word has length 101 [2021-11-17 09:36:04,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:36:04,672 INFO L470 AbstractCegarLoop]: Abstraction has 3632 states and 5107 transitions. [2021-11-17 09:36:04,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-17 09:36:04,672 INFO L276 IsEmpty]: Start isEmpty. Operand 3632 states and 5107 transitions. [2021-11-17 09:36:04,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-17 09:36:04,674 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:36:04,674 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:36:04,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 09:36:04,675 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 09:36:04,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:36:04,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1606047666, now seen corresponding path program 1 times [2021-11-17 09:36:04,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:36:04,675 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317431768] [2021-11-17 09:36:04,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:36:04,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:36:04,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:05,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:36:05,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:05,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:36:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:05,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 09:36:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:05,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:36:05,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:05,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-17 09:36:05,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:05,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 09:36:05,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:05,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 09:36:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:05,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 09:36:05,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:05,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 09:36:05,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:05,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 09:36:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:05,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 09:36:05,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:05,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 09:36:05,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:05,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-17 09:36:05,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:05,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 09:36:05,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:05,534 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2021-11-17 09:36:05,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:36:05,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317431768] [2021-11-17 09:36:05,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317431768] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:36:05,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:36:05,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:36:05,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328997484] [2021-11-17 09:36:05,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:36:05,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:36:05,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:36:05,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:36:05,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:36:05,537 INFO L87 Difference]: Start difference. First operand 3632 states and 5107 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-17 09:36:05,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:36:05,918 INFO L93 Difference]: Finished difference Result 3638 states and 5112 transitions. [2021-11-17 09:36:05,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:36:05,919 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 91 [2021-11-17 09:36:05,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:36:05,932 INFO L225 Difference]: With dead ends: 3638 [2021-11-17 09:36:05,932 INFO L226 Difference]: Without dead ends: 3636 [2021-11-17 09:36:05,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:36:05,936 INFO L933 BasicCegarLoop]: 4943 mSDtfsCounter, 4909 mSDsluCounter, 9864 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4915 SdHoareTripleChecker+Valid, 14807 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 09:36:05,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4915 Valid, 14807 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 09:36:05,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3636 states. [2021-11-17 09:36:06,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3636 to 3636. [2021-11-17 09:36:06,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3636 states, 2572 states have (on average 1.3145412130637637) internal successors, (3381), 2600 states have internal predecessors, (3381), 866 states have call successors, (866), 196 states have call predecessors, (866), 195 states have return successors, (863), 861 states have call predecessors, (863), 863 states have call successors, (863) [2021-11-17 09:36:06,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3636 states to 3636 states and 5110 transitions. [2021-11-17 09:36:06,057 INFO L78 Accepts]: Start accepts. Automaton has 3636 states and 5110 transitions. Word has length 91 [2021-11-17 09:36:06,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:36:06,058 INFO L470 AbstractCegarLoop]: Abstraction has 3636 states and 5110 transitions. [2021-11-17 09:36:06,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-17 09:36:06,058 INFO L276 IsEmpty]: Start isEmpty. Operand 3636 states and 5110 transitions. [2021-11-17 09:36:06,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-17 09:36:06,059 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:36:06,060 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 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] [2021-11-17 09:36:06,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 09:36:06,060 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 09:36:06,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:36:06,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1168038543, now seen corresponding path program 1 times [2021-11-17 09:36:06,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:36:06,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614944902] [2021-11-17 09:36:06,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:36:06,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:36:06,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:06,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:36:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:06,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:36:06,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:06,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 09:36:06,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:06,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:36:06,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:06,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-17 09:36:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:06,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 09:36:06,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:06,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 09:36:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:06,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 09:36:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:06,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 09:36:06,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:06,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 09:36:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:06,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 09:36:06,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:06,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 09:36:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:06,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-17 09:36:06,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:06,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 09:36:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:06,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 09:36:06,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:06,726 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-11-17 09:36:06,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:36:06,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614944902] [2021-11-17 09:36:06,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614944902] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:36:06,727 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:36:06,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:36:06,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379194704] [2021-11-17 09:36:06,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:36:06,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:36:06,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:36:06,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:36:06,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:36:06,728 INFO L87 Difference]: Start difference. First operand 3636 states and 5110 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-17 09:36:07,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:36:07,119 INFO L93 Difference]: Finished difference Result 3642 states and 5115 transitions. [2021-11-17 09:36:07,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:36:07,120 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 96 [2021-11-17 09:36:07,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:36:07,134 INFO L225 Difference]: With dead ends: 3642 [2021-11-17 09:36:07,134 INFO L226 Difference]: Without dead ends: 3640 [2021-11-17 09:36:07,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:36:07,139 INFO L933 BasicCegarLoop]: 4943 mSDtfsCounter, 4909 mSDsluCounter, 9864 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4914 SdHoareTripleChecker+Valid, 14807 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 09:36:07,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4914 Valid, 14807 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 09:36:07,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3640 states. [2021-11-17 09:36:07,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3640 to 3640. [2021-11-17 09:36:07,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3640 states, 2575 states have (on average 1.3141747572815534) internal successors, (3384), 2603 states have internal predecessors, (3384), 866 states have call successors, (866), 197 states have call predecessors, (866), 196 states have return successors, (863), 861 states have call predecessors, (863), 863 states have call successors, (863) [2021-11-17 09:36:07,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3640 states to 3640 states and 5113 transitions. [2021-11-17 09:36:07,277 INFO L78 Accepts]: Start accepts. Automaton has 3640 states and 5113 transitions. Word has length 96 [2021-11-17 09:36:07,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:36:07,278 INFO L470 AbstractCegarLoop]: Abstraction has 3640 states and 5113 transitions. [2021-11-17 09:36:07,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-17 09:36:07,278 INFO L276 IsEmpty]: Start isEmpty. Operand 3640 states and 5113 transitions. [2021-11-17 09:36:07,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-17 09:36:07,281 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:36:07,281 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:36:07,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 09:36:07,281 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 09:36:07,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:36:07,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1887736798, now seen corresponding path program 1 times [2021-11-17 09:36:07,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:36:07,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663251266] [2021-11-17 09:36:07,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:36:07,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:36:07,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:07,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:36:07,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:07,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:36:07,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:07,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 09:36:07,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:07,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:36:07,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:07,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-17 09:36:07,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:07,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 09:36:07,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:07,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-17 09:36:07,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:07,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 09:36:07,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:07,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 09:36:07,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:07,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 09:36:07,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:08,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-17 09:36:08,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:08,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 09:36:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:08,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 09:36:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:08,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 09:36:08,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:08,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 09:36:08,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:08,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 09:36:08,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:08,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 09:36:08,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:08,059 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2021-11-17 09:36:08,060 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:36:08,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663251266] [2021-11-17 09:36:08,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663251266] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:36:08,060 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:36:08,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:36:08,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604343563] [2021-11-17 09:36:08,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:36:08,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:36:08,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:36:08,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:36:08,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:36:08,062 INFO L87 Difference]: Start difference. First operand 3640 states and 5113 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-17 09:36:08,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:36:08,466 INFO L93 Difference]: Finished difference Result 3646 states and 5118 transitions. [2021-11-17 09:36:08,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:36:08,467 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 116 [2021-11-17 09:36:08,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:36:08,482 INFO L225 Difference]: With dead ends: 3646 [2021-11-17 09:36:08,482 INFO L226 Difference]: Without dead ends: 3644 [2021-11-17 09:36:08,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:36:08,591 INFO L933 BasicCegarLoop]: 4943 mSDtfsCounter, 4897 mSDsluCounter, 9864 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4901 SdHoareTripleChecker+Valid, 14807 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 09:36:08,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4901 Valid, 14807 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 09:36:08,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3644 states. [2021-11-17 09:36:08,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3644 to 3644. [2021-11-17 09:36:08,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3644 states, 2578 states have (on average 1.3138091543832429) internal successors, (3387), 2606 states have internal predecessors, (3387), 866 states have call successors, (866), 198 states have call predecessors, (866), 197 states have return successors, (863), 861 states have call predecessors, (863), 863 states have call successors, (863) [2021-11-17 09:36:08,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3644 states to 3644 states and 5116 transitions. [2021-11-17 09:36:08,700 INFO L78 Accepts]: Start accepts. Automaton has 3644 states and 5116 transitions. Word has length 116 [2021-11-17 09:36:08,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:36:08,700 INFO L470 AbstractCegarLoop]: Abstraction has 3644 states and 5116 transitions. [2021-11-17 09:36:08,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-17 09:36:08,700 INFO L276 IsEmpty]: Start isEmpty. Operand 3644 states and 5116 transitions. [2021-11-17 09:36:08,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-17 09:36:08,702 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:36:08,702 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 3, 3, 3, 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] [2021-11-17 09:36:08,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 09:36:08,702 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 09:36:08,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:36:08,703 INFO L85 PathProgramCache]: Analyzing trace with hash -823983279, now seen corresponding path program 1 times [2021-11-17 09:36:08,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:36:08,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578463864] [2021-11-17 09:36:08,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:36:08,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:36:08,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:09,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:36:09,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:09,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:36:09,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:09,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 09:36:09,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:09,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:36:09,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:09,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-17 09:36:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:09,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 09:36:09,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:09,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 09:36:09,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:09,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 09:36:09,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:09,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 09:36:09,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:09,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 09:36:09,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:09,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 09:36:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:09,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 09:36:09,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:09,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-17 09:36:09,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:09,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 09:36:09,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:09,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 09:36:09,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:09,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 09:36:09,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:09,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 09:36:09,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:09,311 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-17 09:36:09,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:36:09,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578463864] [2021-11-17 09:36:09,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578463864] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:36:09,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:36:09,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:36:09,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252612790] [2021-11-17 09:36:09,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:36:09,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:36:09,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:36:09,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:36:09,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:36:09,313 INFO L87 Difference]: Start difference. First operand 3644 states and 5116 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-17 09:36:09,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:36:09,843 INFO L93 Difference]: Finished difference Result 3650 states and 5121 transitions. [2021-11-17 09:36:09,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:36:09,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 106 [2021-11-17 09:36:09,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:36:09,858 INFO L225 Difference]: With dead ends: 3650 [2021-11-17 09:36:09,859 INFO L226 Difference]: Without dead ends: 3648 [2021-11-17 09:36:09,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:36:09,861 INFO L933 BasicCegarLoop]: 4943 mSDtfsCounter, 4909 mSDsluCounter, 9864 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4912 SdHoareTripleChecker+Valid, 14807 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 09:36:09,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4912 Valid, 14807 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 09:36:09,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3648 states. [2021-11-17 09:36:09,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3648 to 3648. [2021-11-17 09:36:09,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3648 states, 2581 states have (on average 1.3134444013948081) internal successors, (3390), 2609 states have internal predecessors, (3390), 866 states have call successors, (866), 199 states have call predecessors, (866), 198 states have return successors, (863), 861 states have call predecessors, (863), 863 states have call successors, (863) [2021-11-17 09:36:09,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3648 states to 3648 states and 5119 transitions. [2021-11-17 09:36:09,984 INFO L78 Accepts]: Start accepts. Automaton has 3648 states and 5119 transitions. Word has length 106 [2021-11-17 09:36:09,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:36:09,984 INFO L470 AbstractCegarLoop]: Abstraction has 3648 states and 5119 transitions. [2021-11-17 09:36:09,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-17 09:36:09,985 INFO L276 IsEmpty]: Start isEmpty. Operand 3648 states and 5119 transitions. [2021-11-17 09:36:09,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-17 09:36:09,986 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:36:09,987 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:36:09,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-17 09:36:09,987 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 09:36:09,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:36:09,987 INFO L85 PathProgramCache]: Analyzing trace with hash -657317070, now seen corresponding path program 1 times [2021-11-17 09:36:09,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:36:09,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837617969] [2021-11-17 09:36:09,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:36:09,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:36:10,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:10,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:36:10,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:10,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:36:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:10,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:36:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:10,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:36:10,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:10,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:36:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:10,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:36:10,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:10,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-17 09:36:10,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:10,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:36:10,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:10,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:36:10,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:10,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:36:10,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:10,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 09:36:10,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:10,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:36:10,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:10,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:36:10,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:10,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:36:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:10,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-17 09:36:10,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:10,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 09:36:10,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:10,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:36:10,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:10,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-17 09:36:10,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:10,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 09:36:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:10,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:36:10,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:10,749 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2021-11-17 09:36:10,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:36:10,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837617969] [2021-11-17 09:36:10,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837617969] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:36:10,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:36:10,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 09:36:10,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918871119] [2021-11-17 09:36:10,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:36:10,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 09:36:10,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:36:10,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 09:36:10,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 09:36:10,751 INFO L87 Difference]: Start difference. First operand 3648 states and 5119 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-17 09:36:12,910 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:36:15,918 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:36:18,247 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:36:20,641 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:36:35,978 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:36:38,284 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:36:40,734 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:36:43,030 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:36:46,012 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:36:48,360 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:36:50,794 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:36:53,288 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:36:55,769 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:36:58,461 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:37:01,310 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:37:03,598 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:37:05,938 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:37:08,718 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:37:11,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:37:11,745 INFO L93 Difference]: Finished difference Result 7617 states and 10728 transitions. [2021-11-17 09:37:11,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 09:37:11,746 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 131 [2021-11-17 09:37:11,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:37:11,799 INFO L225 Difference]: With dead ends: 7617 [2021-11-17 09:37:11,799 INFO L226 Difference]: Without dead ends: 3989 [2021-11-17 09:37:11,816 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 09:37:11,817 INFO L933 BasicCegarLoop]: 5050 mSDtfsCounter, 1558 mSDsluCounter, 5871 mSDsCounter, 0 mSdLazyCounter, 2157 mSolverCounterSat, 893 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1952 SdHoareTripleChecker+Valid, 10921 SdHoareTripleChecker+Invalid, 3068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 893 IncrementalHoareTripleChecker+Valid, 2157 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.4s IncrementalHoareTripleChecker+Time [2021-11-17 09:37:11,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1952 Valid, 10921 Invalid, 3068 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [893 Valid, 2157 Invalid, 18 Unknown, 0 Unchecked, 60.4s Time] [2021-11-17 09:37:11,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3989 states. [2021-11-17 09:37:11,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3989 to 3651. [2021-11-17 09:37:11,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3651 states, 2584 states have (on average 1.313467492260062) internal successors, (3394), 2612 states have internal predecessors, (3394), 866 states have call successors, (866), 199 states have call predecessors, (866), 198 states have return successors, (863), 861 states have call predecessors, (863), 863 states have call successors, (863) [2021-11-17 09:37:11,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3651 states to 3651 states and 5123 transitions. [2021-11-17 09:37:11,945 INFO L78 Accepts]: Start accepts. Automaton has 3651 states and 5123 transitions. Word has length 131 [2021-11-17 09:37:11,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:37:11,946 INFO L470 AbstractCegarLoop]: Abstraction has 3651 states and 5123 transitions. [2021-11-17 09:37:11,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-17 09:37:11,946 INFO L276 IsEmpty]: Start isEmpty. Operand 3651 states and 5123 transitions. [2021-11-17 09:37:11,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-17 09:37:11,948 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:37:11,948 INFO L514 BasicCegarLoop]: trace histogram [13, 12, 12, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:37:11,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-17 09:37:11,949 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:37:11,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:37:11,949 INFO L85 PathProgramCache]: Analyzing trace with hash 816702846, now seen corresponding path program 1 times [2021-11-17 09:37:11,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:37:11,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331815207] [2021-11-17 09:37:11,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:37:11,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:37:12,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:12,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:37:12,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:12,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:37:12,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:12,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 09:37:12,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:12,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:37:12,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:12,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-17 09:37:12,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:12,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 09:37:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:12,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-17 09:37:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:12,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 09:37:12,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:12,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 09:37:12,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:12,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 09:37:12,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:12,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-17 09:37:12,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:12,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 09:37:12,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:12,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 09:37:12,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:12,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 09:37:12,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:12,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 09:37:12,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:12,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 09:37:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:12,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 09:37:12,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:12,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 09:37:12,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:12,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 09:37:12,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:12,616 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2021-11-17 09:37:12,616 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:37:12,616 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331815207] [2021-11-17 09:37:12,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331815207] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:37:12,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:37:12,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:37:12,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126572081] [2021-11-17 09:37:12,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:37:12,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:37:12,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:37:12,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:37:12,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:37:12,618 INFO L87 Difference]: Start difference. First operand 3651 states and 5123 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 09:37:13,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:37:13,052 INFO L93 Difference]: Finished difference Result 3657 states and 5128 transitions. [2021-11-17 09:37:13,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:37:13,053 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 126 [2021-11-17 09:37:13,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:37:13,066 INFO L225 Difference]: With dead ends: 3657 [2021-11-17 09:37:13,066 INFO L226 Difference]: Without dead ends: 3655 [2021-11-17 09:37:13,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:37:13,068 INFO L933 BasicCegarLoop]: 4943 mSDtfsCounter, 4897 mSDsluCounter, 9864 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4899 SdHoareTripleChecker+Valid, 14807 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 09:37:13,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4899 Valid, 14807 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 09:37:13,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3655 states. [2021-11-17 09:37:13,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3655 to 3655. [2021-11-17 09:37:13,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3655 states, 2587 states have (on average 1.31310398144569) internal successors, (3397), 2615 states have internal predecessors, (3397), 866 states have call successors, (866), 200 states have call predecessors, (866), 199 states have return successors, (863), 861 states have call predecessors, (863), 863 states have call successors, (863) [2021-11-17 09:37:13,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3655 states to 3655 states and 5126 transitions. [2021-11-17 09:37:13,204 INFO L78 Accepts]: Start accepts. Automaton has 3655 states and 5126 transitions. Word has length 126 [2021-11-17 09:37:13,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:37:13,204 INFO L470 AbstractCegarLoop]: Abstraction has 3655 states and 5126 transitions. [2021-11-17 09:37:13,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 09:37:13,204 INFO L276 IsEmpty]: Start isEmpty. Operand 3655 states and 5126 transitions. [2021-11-17 09:37:13,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-17 09:37:13,206 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:37:13,206 INFO L514 BasicCegarLoop]: trace histogram [14, 13, 13, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:37:13,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-17 09:37:13,207 INFO L402 AbstractCegarLoop]: === Iteration 15 === 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 09:37:13,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:37:13,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1795947199, now seen corresponding path program 1 times [2021-11-17 09:37:13,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:37:13,208 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942031665] [2021-11-17 09:37:13,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:37:13,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:37:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:13,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:37:13,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:13,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:37:13,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:13,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 09:37:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:13,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:37:13,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:13,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-17 09:37:13,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:13,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 09:37:13,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:13,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-17 09:37:13,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:13,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 09:37:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:13,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 09:37:13,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:13,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 09:37:13,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:13,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-17 09:37:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:13,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 09:37:13,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:13,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 09:37:13,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:13,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 09:37:13,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:13,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 09:37:13,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:13,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 09:37:13,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:13,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 09:37:13,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:13,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 09:37:13,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:13,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 09:37:13,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:13,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 09:37:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:13,813 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2021-11-17 09:37:13,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:37:13,813 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942031665] [2021-11-17 09:37:13,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942031665] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:37:13,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:37:13,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:37:13,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665364544] [2021-11-17 09:37:13,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:37:13,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:37:13,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:37:13,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:37:13,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:37:13,815 INFO L87 Difference]: Start difference. First operand 3655 states and 5126 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 09:37:14,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:37:14,301 INFO L93 Difference]: Finished difference Result 3661 states and 5131 transitions. [2021-11-17 09:37:14,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:37:14,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 131 [2021-11-17 09:37:14,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:37:14,312 INFO L225 Difference]: With dead ends: 3661 [2021-11-17 09:37:14,312 INFO L226 Difference]: Without dead ends: 3657 [2021-11-17 09:37:14,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:37:14,316 INFO L933 BasicCegarLoop]: 4943 mSDtfsCounter, 4897 mSDsluCounter, 9864 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4898 SdHoareTripleChecker+Valid, 14807 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 09:37:14,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4898 Valid, 14807 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 09:37:14,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3657 states. [2021-11-17 09:37:14,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3657 to 3657. [2021-11-17 09:37:14,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3657 states, 2589 states have (on average 1.3124758594051757) internal successors, (3398), 2616 states have internal predecessors, (3398), 866 states have call successors, (866), 201 states have call predecessors, (866), 199 states have return successors, (863), 861 states have call predecessors, (863), 863 states have call successors, (863) [2021-11-17 09:37:14,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3657 states to 3657 states and 5127 transitions. [2021-11-17 09:37:14,435 INFO L78 Accepts]: Start accepts. Automaton has 3657 states and 5127 transitions. Word has length 131 [2021-11-17 09:37:14,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:37:14,435 INFO L470 AbstractCegarLoop]: Abstraction has 3657 states and 5127 transitions. [2021-11-17 09:37:14,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 09:37:14,436 INFO L276 IsEmpty]: Start isEmpty. Operand 3657 states and 5127 transitions. [2021-11-17 09:37:14,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-17 09:37:14,437 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:37:14,438 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:37:14,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-17 09:37:14,438 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:37:14,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:37:14,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1384825981, now seen corresponding path program 1 times [2021-11-17 09:37:14,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:37:14,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354883772] [2021-11-17 09:37:14,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:37:14,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:37:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:15,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:37:15,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:15,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:37:15,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:15,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:37:15,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:15,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:37:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:15,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:37:15,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:15,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:37:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:15,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-17 09:37:15,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:15,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:37:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:15,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:37:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:15,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:37:15,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:15,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 09:37:15,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:15,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:37:15,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:15,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:37:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:15,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:37:15,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:15,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-17 09:37:15,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:15,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 09:37:15,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:15,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:37:15,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:15,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-17 09:37:15,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:15,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 09:37:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:15,622 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2021-11-17 09:37:15,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:37:15,623 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354883772] [2021-11-17 09:37:15,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354883772] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:37:15,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:37:15,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 09:37:15,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045457630] [2021-11-17 09:37:15,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:37:15,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 09:37:15,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:37:15,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 09:37:15,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:37:15,626 INFO L87 Difference]: Start difference. First operand 3657 states and 5127 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-17 09:37:17,804 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:37:19,897 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:37:24,330 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:37:26,700 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:37:29,332 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:38:06,187 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:38:15,420 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:38:17,772 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:38:19,995 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:38:23,141 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:38:28,940 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:38:31,254 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:38:34,452 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:38:37,522 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:38:40,605 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:38:44,523 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:38:48,765 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:38:51,075 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:38:53,586 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:38:56,410 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:38:59,002 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:39:02,661 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:39:05,799 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:39:25,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:39:25,433 INFO L93 Difference]: Finished difference Result 6348 states and 9037 transitions. [2021-11-17 09:39:25,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-17 09:39:25,434 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 135 [2021-11-17 09:39:25,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:39:25,491 INFO L225 Difference]: With dead ends: 6348 [2021-11-17 09:39:25,491 INFO L226 Difference]: Without dead ends: 6346 [2021-11-17 09:39:25,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2021-11-17 09:39:25,496 INFO L933 BasicCegarLoop]: 5012 mSDtfsCounter, 8896 mSDsluCounter, 13999 mSDsCounter, 0 mSdLazyCounter, 10779 mSolverCounterSat, 5951 mSolverCounterUnsat, 23 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 118.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9503 SdHoareTripleChecker+Valid, 19011 SdHoareTripleChecker+Invalid, 16753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5951 IncrementalHoareTripleChecker+Valid, 10779 IncrementalHoareTripleChecker+Invalid, 23 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 127.8s IncrementalHoareTripleChecker+Time [2021-11-17 09:39:25,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9503 Valid, 19011 Invalid, 16753 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5951 Valid, 10779 Invalid, 23 Unknown, 0 Unchecked, 127.8s Time] [2021-11-17 09:39:25,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6346 states. [2021-11-17 09:39:25,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6346 to 5896. [2021-11-17 09:39:25,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5896 states, 4195 states have (on average 1.3129916567342075) internal successors, (5508), 4249 states have internal predecessors, (5508), 1365 states have call successors, (1365), 321 states have call predecessors, (1365), 333 states have return successors, (1449), 1361 states have call predecessors, (1449), 1362 states have call successors, (1449) [2021-11-17 09:39:25,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5896 states to 5896 states and 8322 transitions. [2021-11-17 09:39:25,733 INFO L78 Accepts]: Start accepts. Automaton has 5896 states and 8322 transitions. Word has length 135 [2021-11-17 09:39:25,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:39:25,734 INFO L470 AbstractCegarLoop]: Abstraction has 5896 states and 8322 transitions. [2021-11-17 09:39:25,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-17 09:39:25,734 INFO L276 IsEmpty]: Start isEmpty. Operand 5896 states and 8322 transitions. [2021-11-17 09:39:25,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-17 09:39:25,736 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:39:25,736 INFO L514 BasicCegarLoop]: trace histogram [15, 14, 14, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:39:25,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-17 09:39:25,736 INFO L402 AbstractCegarLoop]: === Iteration 17 === 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 09:39:25,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:39:25,737 INFO L85 PathProgramCache]: Analyzing trace with hash 528965406, now seen corresponding path program 1 times [2021-11-17 09:39:25,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:39:25,737 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648193200] [2021-11-17 09:39:25,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:39:25,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:39:25,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:26,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:39:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:26,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:39:26,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:26,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 09:39:26,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:26,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:39:26,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:26,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-17 09:39:26,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:26,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 09:39:26,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:26,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-17 09:39:26,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:26,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 09:39:26,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:26,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 09:39:26,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:26,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 09:39:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:26,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-17 09:39:26,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:26,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 09:39:26,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:26,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 09:39:26,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:26,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 09:39:26,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:26,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 09:39:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:26,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 09:39:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:26,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 09:39:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:26,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 09:39:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:26,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 09:39:26,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:26,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 09:39:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:26,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 09:39:26,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:26,366 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2021-11-17 09:39:26,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:39:26,367 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648193200] [2021-11-17 09:39:26,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648193200] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:39:26,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:39:26,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:39:26,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041283930] [2021-11-17 09:39:26,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:39:26,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:39:26,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:39:26,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:39:26,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:39:26,368 INFO L87 Difference]: Start difference. First operand 5896 states and 8322 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 09:39:27,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:39:27,039 INFO L93 Difference]: Finished difference Result 5896 states and 8322 transitions. [2021-11-17 09:39:27,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:39:27,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 136 [2021-11-17 09:39:27,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:39:27,057 INFO L225 Difference]: With dead ends: 5896 [2021-11-17 09:39:27,057 INFO L226 Difference]: Without dead ends: 5119 [2021-11-17 09:39:27,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:39:27,062 INFO L933 BasicCegarLoop]: 4941 mSDtfsCounter, 4893 mSDsluCounter, 9863 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4893 SdHoareTripleChecker+Valid, 14804 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 09:39:27,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4893 Valid, 14804 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 09:39:27,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5119 states. [2021-11-17 09:39:27,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5119 to 5119. [2021-11-17 09:39:27,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 3633 states have (on average 1.3132397467657584) internal successors, (4771), 3677 states have internal predecessors, (4771), 1181 states have call successors, (1181), 289 states have call predecessors, (1181), 303 states have return successors, (1268), 1182 states have call predecessors, (1268), 1181 states have call successors, (1268) [2021-11-17 09:39:27,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 7220 transitions. [2021-11-17 09:39:27,268 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 7220 transitions. Word has length 136 [2021-11-17 09:39:27,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:39:27,269 INFO L470 AbstractCegarLoop]: Abstraction has 5119 states and 7220 transitions. [2021-11-17 09:39:27,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 09:39:27,269 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 7220 transitions. [2021-11-17 09:39:27,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-17 09:39:27,274 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:39:27,275 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:39:27,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-17 09:39:27,275 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:39:27,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:39:27,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1867267886, now seen corresponding path program 1 times [2021-11-17 09:39:27,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:39:27,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698956330] [2021-11-17 09:39:27,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:39:27,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:39:27,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:27,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:39:27,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:27,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:39:27,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:27,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:39:27,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:27,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:39:27,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:28,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:39:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:28,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:39:28,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:28,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-17 09:39:28,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:28,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:39:28,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:28,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:39:28,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:28,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:39:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:28,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 09:39:28,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:28,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:39:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:28,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:39:28,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:28,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:39:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:28,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-17 09:39:28,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:28,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 09:39:28,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:28,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:39:28,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:28,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 09:39:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:28,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 09:39:28,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:28,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 09:39:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:28,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 09:39:28,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:28,279 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2021-11-17 09:39:28,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:39:28,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698956330] [2021-11-17 09:39:28,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698956330] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:39:28,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:39:28,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 09:39:28,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112410731] [2021-11-17 09:39:28,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:39:28,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 09:39:28,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:39:28,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 09:39:28,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-17 09:39:28,282 INFO L87 Difference]: Start difference. First operand 5119 states and 7220 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-17 09:39:30,468 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:39:33,315 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:39:35,683 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:39:38,258 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:39:41,878 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:39:45,691 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 09:39:53,835 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:09,999 WARN L515 Checker$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 09:40:16,370 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:18,692 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:21,158 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:23,455 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:27,464 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:31,479 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:34,873 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:37,764 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:40,392 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:43,350 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:46,904 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:50,098 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:52,605 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:55,131 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:57,448 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:59,963 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:41:02,830 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:41:05,130 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:41:14,804 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:41:21,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:41:21,256 INFO L93 Difference]: Finished difference Result 5618 states and 8004 transitions. [2021-11-17 09:41:21,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 09:41:21,257 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 147 [2021-11-17 09:41:21,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:41:21,319 INFO L225 Difference]: With dead ends: 5618 [2021-11-17 09:41:21,319 INFO L226 Difference]: Without dead ends: 5616 [2021-11-17 09:41:21,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-17 09:41:21,323 INFO L933 BasicCegarLoop]: 4810 mSDtfsCounter, 4899 mSDsluCounter, 14206 mSDsCounter, 0 mSdLazyCounter, 6960 mSolverCounterSat, 1757 mSolverCounterUnsat, 25 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 102.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5477 SdHoareTripleChecker+Valid, 19016 SdHoareTripleChecker+Invalid, 8742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1757 IncrementalHoareTripleChecker+Valid, 6960 IncrementalHoareTripleChecker+Invalid, 25 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 111.6s IncrementalHoareTripleChecker+Time [2021-11-17 09:41:21,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5477 Valid, 19016 Invalid, 8742 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1757 Valid, 6960 Invalid, 25 Unknown, 0 Unchecked, 111.6s Time] [2021-11-17 09:41:21,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5616 states. [2021-11-17 09:41:21,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5616 to 5245. [2021-11-17 09:41:21,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5245 states, 3725 states have (on average 1.312214765100671) internal successors, (4888), 3770 states have internal predecessors, (4888), 1201 states have call successors, (1201), 305 states have call predecessors, (1201), 317 states have return successors, (1288), 1199 states have call predecessors, (1288), 1201 states have call successors, (1288) [2021-11-17 09:41:21,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 7377 transitions. [2021-11-17 09:41:21,547 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 7377 transitions. Word has length 147 [2021-11-17 09:41:21,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:41:21,549 INFO L470 AbstractCegarLoop]: Abstraction has 5245 states and 7377 transitions. [2021-11-17 09:41:21,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-17 09:41:21,549 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 7377 transitions. [2021-11-17 09:41:21,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-17 09:41:21,551 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:41:21,551 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:41:21,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-17 09:41:21,551 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:41:21,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:41:21,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1138155487, now seen corresponding path program 1 times [2021-11-17 09:41:21,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:41:21,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089445434] [2021-11-17 09:41:21,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:41:21,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:41:21,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:22,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:41:22,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:22,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:41:22,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:22,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:41:22,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:22,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:22,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:22,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:41:22,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:22,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:41:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:22,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-17 09:41:22,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:22,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:22,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:22,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:41:22,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:22,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:41:22,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:22,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 09:41:22,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:22,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:22,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:22,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:41:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:22,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:41:22,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:22,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-17 09:41:22,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:22,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 09:41:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:22,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:22,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:22,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-17 09:41:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:22,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 09:41:22,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:22,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 09:41:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:22,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 09:41:22,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:22,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:41:22,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:22,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-17 09:41:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:22,665 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2021-11-17 09:41:22,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:41:22,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089445434] [2021-11-17 09:41:22,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089445434] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:41:22,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:41:22,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 09:41:22,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612791135] [2021-11-17 09:41:22,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:41:22,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 09:41:22,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:41:22,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 09:41:22,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:41:22,667 INFO L87 Difference]: Start difference. First operand 5245 states and 7377 transitions. Second operand has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-17 09:41:24,816 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:41:26,904 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:41:28,997 WARN L515 Checker$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 09:41:32,105 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:41:34,381 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:41:37,085 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:42:18,881 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:42:21,273 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:42:23,754 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:42:26,057 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:42:29,911 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:42:32,957 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:42:35,841 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:42:38,339 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:42:41,212 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:42:44,625 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:42:48,423 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:42:50,737 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:42:53,234 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:42:55,934 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:43:01,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:43:01,561 INFO L93 Difference]: Finished difference Result 5571 states and 7923 transitions. [2021-11-17 09:43:01,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-17 09:43:01,562 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 159 [2021-11-17 09:43:01,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:43:01,611 INFO L225 Difference]: With dead ends: 5571 [2021-11-17 09:43:01,611 INFO L226 Difference]: Without dead ends: 5569 [2021-11-17 09:43:01,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2021-11-17 09:43:01,615 INFO L933 BasicCegarLoop]: 4038 mSDtfsCounter, 3463 mSDsluCounter, 11827 mSDsCounter, 0 mSdLazyCounter, 6943 mSolverCounterSat, 3067 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 90.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3654 SdHoareTripleChecker+Valid, 15865 SdHoareTripleChecker+Invalid, 10030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3067 IncrementalHoareTripleChecker+Valid, 6943 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 97.5s IncrementalHoareTripleChecker+Time [2021-11-17 09:43:01,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3654 Valid, 15865 Invalid, 10030 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3067 Valid, 6943 Invalid, 20 Unknown, 0 Unchecked, 97.5s Time] [2021-11-17 09:43:01,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5569 states. [2021-11-17 09:43:01,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5569 to 5243. [2021-11-17 09:43:01,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 3724 states have (on average 1.3120300751879699) internal successors, (4886), 3768 states have internal predecessors, (4886), 1201 states have call successors, (1201), 305 states have call predecessors, (1201), 317 states have return successors, (1288), 1199 states have call predecessors, (1288), 1201 states have call successors, (1288) [2021-11-17 09:43:01,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 7375 transitions. [2021-11-17 09:43:01,818 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 7375 transitions. Word has length 159 [2021-11-17 09:43:01,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:43:01,819 INFO L470 AbstractCegarLoop]: Abstraction has 5243 states and 7375 transitions. [2021-11-17 09:43:01,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-17 09:43:01,819 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 7375 transitions. [2021-11-17 09:43:01,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2021-11-17 09:43:01,830 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:43:01,833 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:43:01,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-17 09:43:01,833 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:43:01,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:43:01,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1476281322, now seen corresponding path program 1 times [2021-11-17 09:43:01,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:43:01,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682678063] [2021-11-17 09:43:01,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:43:01,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:43:02,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:43:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:43:02,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:43:02,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:43:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:43:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:43:02,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-17 09:43:02,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:43:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:43:02,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:43:02,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 09:43:02,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:43:02,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:43:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:43:02,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-17 09:43:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 09:43:02,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:43:02,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-17 09:43:02,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 09:43:02,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-11-17 09:43:02,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 09:43:02,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:43:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 09:43:02,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 09:43:02,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 09:43:02,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 09:43:02,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 09:43:02,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 09:43:02,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:43:02,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:43:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-17 09:43:02,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:43:02,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:43:02,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-11-17 09:43:02,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:43:02,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-17 09:43:02,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-17 09:43:02,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-11-17 09:43:02,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-17 09:43:02,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 09:43:02,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 09:43:02,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-11-17 09:43:02,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 09:43:02,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:43:02,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-11-17 09:43:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-17 09:43:02,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-11-17 09:43:02,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 09:43:02,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:43:02,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:02,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 09:43:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:03,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:43:03,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:03,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-11-17 09:43:03,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:03,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:43:03,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:03,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:43:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:03,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-11-17 09:43:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:03,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:43:03,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:03,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:43:03,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:03,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-11-17 09:43:03,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:03,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:43:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:03,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:43:03,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:03,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:43:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:03,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:43:03,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:03,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:43:03,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:03,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:43:03,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:03,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2021-11-17 09:43:03,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:03,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:43:03,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:03,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:43:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:03,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:43:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:03,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:43:03,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:03,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:43:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:03,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:43:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:03,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 09:43:03,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:03,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2021-11-17 09:43:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:03,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 09:43:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:03,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2021-11-17 09:43:03,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:03,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2021-11-17 09:43:03,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:03,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2021-11-17 09:43:03,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:43:03,297 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2021-11-17 09:43:03,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:43:03,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682678063] [2021-11-17 09:43:03,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682678063] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:43:03,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:43:03,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 09:43:03,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71844461] [2021-11-17 09:43:03,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:43:03,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 09:43:03,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:43:03,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 09:43:03,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:43:03,299 INFO L87 Difference]: Start difference. First operand 5243 states and 7375 transitions. Second operand has 8 states, 8 states have (on average 26.625) internal successors, (213), 4 states have internal predecessors, (213), 3 states have call successors, (62), 6 states have call predecessors, (62), 1 states have return successors, (56), 2 states have call predecessors, (56), 3 states have call successors, (56) [2021-11-17 09:43:05,526 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:43:07,612 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:43:09,688 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:43:12,772 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:43:15,148 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:43:17,738 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:43:20,050 WARN L515 Checker$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 09:43:25,306 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:43:29,830 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 09:43:37,733 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:43:55,603 WARN L515 Checker$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 09:43:57,769 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:43:59,959 WARN L515 Checker$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 09:44:08,500 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:44:10,916 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:44:13,301 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:44:15,581 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:44:19,634 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:44:22,158 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:44:24,441 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:44:27,278 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:44:30,294 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:44:33,040 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:44:36,461 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:44:39,537 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:44:42,029 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:44:44,692 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:44:46,981 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:44:49,292 WARN L515 Checker$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 09:44:51,765 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:44:55,057 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:44:57,366 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:44:59,661 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:45:04,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:45:04,641 INFO L93 Difference]: Finished difference Result 10865 states and 15435 transitions. [2021-11-17 09:45:04,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-17 09:45:04,642 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 26.625) internal successors, (213), 4 states have internal predecessors, (213), 3 states have call successors, (62), 6 states have call predecessors, (62), 1 states have return successors, (56), 2 states have call predecessors, (56), 3 states have call successors, (56) Word has length 499 [2021-11-17 09:45:04,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:45:04,666 INFO L225 Difference]: With dead ends: 10865 [2021-11-17 09:45:04,666 INFO L226 Difference]: Without dead ends: 5640 [2021-11-17 09:45:04,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-11-17 09:45:04,688 INFO L933 BasicCegarLoop]: 3964 mSDtfsCounter, 3754 mSDsluCounter, 11075 mSDsCounter, 0 mSdLazyCounter, 5959 mSolverCounterSat, 3944 mSolverCounterUnsat, 31 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 110.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3832 SdHoareTripleChecker+Valid, 15039 SdHoareTripleChecker+Invalid, 9934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3944 IncrementalHoareTripleChecker+Valid, 5959 IncrementalHoareTripleChecker+Invalid, 31 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 120.1s IncrementalHoareTripleChecker+Time [2021-11-17 09:45:04,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3832 Valid, 15039 Invalid, 9934 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3944 Valid, 5959 Invalid, 31 Unknown, 0 Unchecked, 120.1s Time] [2021-11-17 09:45:04,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5640 states. [2021-11-17 09:45:04,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5640 to 5245. [2021-11-17 09:45:04,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5245 states, 3726 states have (on average 1.3118625872249061) internal successors, (4888), 3770 states have internal predecessors, (4888), 1201 states have call successors, (1201), 305 states have call predecessors, (1201), 317 states have return successors, (1288), 1199 states have call predecessors, (1288), 1201 states have call successors, (1288) [2021-11-17 09:45:04,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 7377 transitions. [2021-11-17 09:45:05,004 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 7377 transitions. Word has length 499 [2021-11-17 09:45:05,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:45:05,005 INFO L470 AbstractCegarLoop]: Abstraction has 5245 states and 7377 transitions. [2021-11-17 09:45:05,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 26.625) internal successors, (213), 4 states have internal predecessors, (213), 3 states have call successors, (62), 6 states have call predecessors, (62), 1 states have return successors, (56), 2 states have call predecessors, (56), 3 states have call successors, (56) [2021-11-17 09:45:05,006 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 7377 transitions. [2021-11-17 09:45:05,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 579 [2021-11-17 09:45:05,018 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:45:05,018 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:45:05,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-17 09:45:05,019 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:45:05,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:45:05,021 INFO L85 PathProgramCache]: Analyzing trace with hash -2004257296, now seen corresponding path program 1 times [2021-11-17 09:45:05,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:45:05,022 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254626704] [2021-11-17 09:45:05,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:45:05,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:45:05,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:45:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:45:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:45:05,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:45:05,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:45:05,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-17 09:45:05,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:05,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:45:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:45:05,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 09:45:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:05,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:45:05,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:45:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-17 09:45:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 09:45:05,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-17 09:45:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 09:45:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-11-17 09:45:05,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 09:45:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 09:45:05,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 09:45:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 09:45:05,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 09:45:05,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 09:45:05,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 09:45:05,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:05,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-17 09:45:05,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:05,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:05,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-11-17 09:45:05,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:05,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-17 09:45:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-17 09:45:05,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-11-17 09:45:05,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-17 09:45:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 09:45:05,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 09:45:05,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-11-17 09:45:05,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 09:45:05,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:45:05,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:05,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-11-17 09:45:05,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-17 09:45:06,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-11-17 09:45:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 09:45:06,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:06,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 09:45:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:45:06,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-11-17 09:45:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:06,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:06,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-11-17 09:45:06,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:06,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:06,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-11-17 09:45:06,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:06,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:45:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:06,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:06,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2021-11-17 09:45:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:06,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:06,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:06,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:45:06,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:06,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:06,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 09:45:06,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2021-11-17 09:45:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:06,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:06,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:06,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:45:06,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:06,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2021-11-17 09:45:06,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:06,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:06,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:06,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:45:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:06,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:45:06,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2021-11-17 09:45:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 09:45:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2021-11-17 09:45:06,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2021-11-17 09:45:06,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2021-11-17 09:45:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:45:06,511 INFO L134 CoverageAnalysis]: Checked inductivity of 949 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2021-11-17 09:45:06,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:45:06,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254626704] [2021-11-17 09:45:06,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254626704] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:45:06,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:45:06,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 09:45:06,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399648550] [2021-11-17 09:45:06,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:45:06,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 09:45:06,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:45:06,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 09:45:06,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:45:06,514 INFO L87 Difference]: Start difference. First operand 5245 states and 7377 transitions. Second operand has 8 states, 8 states have (on average 27.5) internal successors, (220), 4 states have internal predecessors, (220), 3 states have call successors, (64), 6 states have call predecessors, (64), 1 states have return successors, (58), 2 states have call predecessors, (58), 3 states have call successors, (58) [2021-11-17 09:45:08,680 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:45:10,773 WARN L515 Checker$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 09:45:14,032 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:45:16,421 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:45:19,040 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:45:35,152 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:45:52,814 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:46:02,043 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:46:04,315 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:46:06,699 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:46:09,006 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:46:12,398 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:46:15,112 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:46:18,207 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:46:20,905 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:46:23,681 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:46:26,717 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:46:29,725 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:46:32,306 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:46:35,386 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:46:37,701 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:46:40,165 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:46:43,031 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:46:45,337 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:46:49,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:46:49,463 INFO L93 Difference]: Finished difference Result 10869 states and 15439 transitions. [2021-11-17 09:46:49,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-17 09:46:49,464 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 27.5) internal successors, (220), 4 states have internal predecessors, (220), 3 states have call successors, (64), 6 states have call predecessors, (64), 1 states have return successors, (58), 2 states have call predecessors, (58), 3 states have call successors, (58) Word has length 578 [2021-11-17 09:46:49,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:46:49,482 INFO L225 Difference]: With dead ends: 10869 [2021-11-17 09:46:49,482 INFO L226 Difference]: Without dead ends: 5642 [2021-11-17 09:46:49,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-11-17 09:46:49,498 INFO L933 BasicCegarLoop]: 3965 mSDtfsCounter, 3089 mSDsluCounter, 11125 mSDsCounter, 0 mSdLazyCounter, 6092 mSolverCounterSat, 3040 mSolverCounterUnsat, 24 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 93.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3167 SdHoareTripleChecker+Valid, 15090 SdHoareTripleChecker+Invalid, 9156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3040 IncrementalHoareTripleChecker+Valid, 6092 IncrementalHoareTripleChecker+Invalid, 24 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 101.8s IncrementalHoareTripleChecker+Time [2021-11-17 09:46:49,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3167 Valid, 15090 Invalid, 9156 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3040 Valid, 6092 Invalid, 24 Unknown, 0 Unchecked, 101.8s Time] [2021-11-17 09:46:49,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5642 states. [2021-11-17 09:46:49,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5642 to 5247. [2021-11-17 09:46:49,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5247 states, 3728 states have (on average 1.3116952789699572) internal successors, (4890), 3772 states have internal predecessors, (4890), 1201 states have call successors, (1201), 305 states have call predecessors, (1201), 317 states have return successors, (1288), 1199 states have call predecessors, (1288), 1201 states have call successors, (1288) [2021-11-17 09:46:49,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5247 states to 5247 states and 7379 transitions. [2021-11-17 09:46:49,680 INFO L78 Accepts]: Start accepts. Automaton has 5247 states and 7379 transitions. Word has length 578 [2021-11-17 09:46:49,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:46:49,681 INFO L470 AbstractCegarLoop]: Abstraction has 5247 states and 7379 transitions. [2021-11-17 09:46:49,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 27.5) internal successors, (220), 4 states have internal predecessors, (220), 3 states have call successors, (64), 6 states have call predecessors, (64), 1 states have return successors, (58), 2 states have call predecessors, (58), 3 states have call successors, (58) [2021-11-17 09:46:49,681 INFO L276 IsEmpty]: Start isEmpty. Operand 5247 states and 7379 transitions. [2021-11-17 09:46:49,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 651 [2021-11-17 09:46:49,696 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:46:49,696 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:46:49,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-17 09:46:49,697 INFO L402 AbstractCegarLoop]: === Iteration 22 === 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 09:46:49,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:46:49,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1563781166, now seen corresponding path program 1 times [2021-11-17 09:46:49,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:46:49,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286387094] [2021-11-17 09:46:49,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:46:49,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:46:49,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:46:50,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:46:50,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:46:50,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:46:50,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:46:50,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-17 09:46:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:50,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:46:50,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:46:50,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 09:46:50,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:46:50,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:46:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-17 09:46:50,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 09:46:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:50,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-17 09:46:50,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 09:46:50,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-11-17 09:46:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 09:46:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:50,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 09:46:50,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 09:46:50,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 09:46:50,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 09:46:50,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 09:46:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 09:46:50,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-17 09:46:50,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:50,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:50,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-11-17 09:46:50,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:50,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-17 09:46:50,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-17 09:46:50,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-11-17 09:46:50,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-17 09:46:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 09:46:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 09:46:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-11-17 09:46:50,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 09:46:50,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:46:50,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-11-17 09:46:50,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-17 09:46:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-11-17 09:46:50,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 09:46:50,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:50,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 09:46:50,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:46:50,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-11-17 09:46:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:50,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:50,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-11-17 09:46:50,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:50,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-11-17 09:46:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:50,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:50,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:50,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:46:50,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:50,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:50,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2021-11-17 09:46:50,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:50,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:50,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:46:50,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:50,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:50,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:51,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 09:46:51,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2021-11-17 09:46:51,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:51,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:51,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:46:51,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:51,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:51,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2021-11-17 09:46:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:51,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:51,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:46:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:51,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 530 [2021-11-17 09:46:51,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:51,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:51,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:51,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:46:51,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:51,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2021-11-17 09:46:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:51,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:51,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:51,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:46:51,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:51,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:51,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 606 [2021-11-17 09:46:51,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 09:46:51,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 618 [2021-11-17 09:46:51,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2021-11-17 09:46:51,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2021-11-17 09:46:51,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:51,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1484 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1481 trivial. 0 not checked. [2021-11-17 09:46:51,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:46:51,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286387094] [2021-11-17 09:46:51,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286387094] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 09:46:51,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345964510] [2021-11-17 09:46:51,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:46:51,484 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 09:46:51,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 09:46:51,485 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 09:46:51,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-17 09:46:54,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:54,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 15981 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-17 09:46:54,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 09:46:56,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1484 backedges. 577 proven. 0 refuted. 0 times theorem prover too weak. 907 trivial. 0 not checked. [2021-11-17 09:46:56,687 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 09:46:56,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345964510] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:46:56,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 09:46:56,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-11-17 09:46:56,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210965774] [2021-11-17 09:46:56,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:46:56,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:46:56,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:46:56,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:46:56,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-11-17 09:46:56,689 INFO L87 Difference]: Start difference. First operand 5247 states and 7379 transitions. Second operand has 5 states, 5 states have (on average 48.2) internal successors, (241), 4 states have internal predecessors, (241), 2 states have call successors, (73), 2 states have call predecessors, (73), 3 states have return successors, (67), 3 states have call predecessors, (67), 2 states have call successors, (67) [2021-11-17 09:46:56,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:46:56,969 INFO L93 Difference]: Finished difference Result 10493 states and 14790 transitions. [2021-11-17 09:46:56,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 09:46:56,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 48.2) internal successors, (241), 4 states have internal predecessors, (241), 2 states have call successors, (73), 2 states have call predecessors, (73), 3 states have return successors, (67), 3 states have call predecessors, (67), 2 states have call successors, (67) Word has length 650 [2021-11-17 09:46:56,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:46:56,987 INFO L225 Difference]: With dead ends: 10493 [2021-11-17 09:46:56,988 INFO L226 Difference]: Without dead ends: 5264 [2021-11-17 09:46:57,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 869 GetRequests, 859 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-11-17 09:46:57,003 INFO L933 BasicCegarLoop]: 4387 mSDtfsCounter, 12 mSDsluCounter, 13148 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 17535 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 09:46:57,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 17535 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 09:46:57,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5264 states. [2021-11-17 09:46:57,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5264 to 5251. [2021-11-17 09:46:57,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 3731 states have (on average 1.3114446529080674) internal successors, (4893), 3775 states have internal predecessors, (4893), 1201 states have call successors, (1201), 305 states have call predecessors, (1201), 318 states have return successors, (1294), 1200 states have call predecessors, (1294), 1201 states have call successors, (1294) [2021-11-17 09:46:57,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 7388 transitions. [2021-11-17 09:46:57,183 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 7388 transitions. Word has length 650 [2021-11-17 09:46:57,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:46:57,184 INFO L470 AbstractCegarLoop]: Abstraction has 5251 states and 7388 transitions. [2021-11-17 09:46:57,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.2) internal successors, (241), 4 states have internal predecessors, (241), 2 states have call successors, (73), 2 states have call predecessors, (73), 3 states have return successors, (67), 3 states have call predecessors, (67), 2 states have call successors, (67) [2021-11-17 09:46:57,184 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 7388 transitions. [2021-11-17 09:46:57,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 730 [2021-11-17 09:46:57,194 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:46:57,194 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:46:57,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-17 09:46:57,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-11-17 09:46:57,415 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:46:57,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:46:57,416 INFO L85 PathProgramCache]: Analyzing trace with hash -585486141, now seen corresponding path program 1 times [2021-11-17 09:46:57,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:46:57,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000503200] [2021-11-17 09:46:57,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:46:57,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:46:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:46:58,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:46:58,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:46:58,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:58,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:46:58,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:46:58,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-17 09:46:58,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:46:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:46:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 09:46:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:58,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:46:58,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:46:58,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-17 09:46:58,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 09:46:58,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-17 09:46:58,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 09:46:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-11-17 09:46:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 09:46:58,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:58,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 09:46:58,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 09:46:58,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 09:46:58,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 09:46:58,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 09:46:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 09:46:58,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:58,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:58,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-17 09:46:58,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:58,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:58,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-11-17 09:46:58,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 09:46:58,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-17 09:46:58,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-17 09:46:58,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-11-17 09:46:58,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-17 09:46:58,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-17 09:46:58,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-11-17 09:46:58,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 09:46:58,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:46:58,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 09:46:58,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-17 09:46:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-11-17 09:46:58,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2021-11-17 09:46:58,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 09:46:58,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:46:58,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-11-17 09:46:58,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:58,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:58,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-11-17 09:46:58,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:58,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:58,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2021-11-17 09:46:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:58,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:46:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:58,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:58,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2021-11-17 09:46:58,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:58,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:58,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:58,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:46:58,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:58,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:58,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2021-11-17 09:46:59,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:46:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:59,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:59,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:46:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:59,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 09:46:59,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:59,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:59,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:46:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:59,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:59,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2021-11-17 09:46:59,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:59,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:46:59,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:59,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:59,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 563 [2021-11-17 09:46:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:59,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:59,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:59,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:46:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 609 [2021-11-17 09:46:59,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:59,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:46:59,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:59,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2021-11-17 09:46:59,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:59,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:59,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:59,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:46:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:59,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:46:59,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 685 [2021-11-17 09:46:59,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 09:46:59,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 697 [2021-11-17 09:46:59,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 710 [2021-11-17 09:46:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 718 [2021-11-17 09:46:59,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:46:59,362 INFO L134 CoverageAnalysis]: Checked inductivity of 2245 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2242 trivial. 0 not checked. [2021-11-17 09:46:59,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:46:59,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000503200] [2021-11-17 09:46:59,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000503200] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 09:46:59,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269600566] [2021-11-17 09:46:59,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:46:59,363 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 09:46:59,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 09:46:59,364 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 09:46:59,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-17 09:47:01,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:47:01,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 16453 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-17 09:47:01,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 09:47:07,853 INFO L134 CoverageAnalysis]: Checked inductivity of 2245 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2236 trivial. 0 not checked. [2021-11-17 09:47:07,854 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 09:47:07,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269600566] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:47:07,854 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 09:47:07,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2021-11-17 09:47:07,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620341427] [2021-11-17 09:47:07,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:47:07,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:47:07,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:47:07,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:47:07,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-17 09:47:07,855 INFO L87 Difference]: Start difference. First operand 5251 states and 7388 transitions. Second operand has 5 states, 5 states have (on average 46.0) internal successors, (230), 4 states have internal predecessors, (230), 2 states have call successors, (71), 3 states have call predecessors, (71), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2021-11-17 09:47:08,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:47:08,399 INFO L93 Difference]: Finished difference Result 5251 states and 7388 transitions. [2021-11-17 09:47:08,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 09:47:08,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 46.0) internal successors, (230), 4 states have internal predecessors, (230), 2 states have call successors, (71), 3 states have call predecessors, (71), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 729 [2021-11-17 09:47:08,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:47:08,401 INFO L225 Difference]: With dead ends: 5251 [2021-11-17 09:47:08,402 INFO L226 Difference]: Without dead ends: 0 [2021-11-17 09:47:08,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 978 GetRequests, 967 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-11-17 09:47:08,416 INFO L933 BasicCegarLoop]: 4448 mSDtfsCounter, 3838 mSDsluCounter, 9427 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3839 SdHoareTripleChecker+Valid, 13875 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-17 09:47:08,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3839 Valid, 13875 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-17 09:47:08,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-17 09:47:08,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-17 09:47:08,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-17 09:47:08,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-17 09:47:08,419 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 729 [2021-11-17 09:47:08,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:47:08,419 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-17 09:47:08,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.0) internal successors, (230), 4 states have internal predecessors, (230), 2 states have call successors, (71), 3 states have call predecessors, (71), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2021-11-17 09:47:08,428 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-17 09:47:08,428 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-17 09:47:08,431 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-17 09:47:08,431 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-11-17 09:47:08,431 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-11-17 09:47:08,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-17 09:47:08,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-11-17 09:47:08,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. Killed by 15