./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.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 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 07:56:05,678 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 07:56:05,680 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 07:56:05,739 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 07:56:05,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 07:56:05,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 07:56:05,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 07:56:05,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 07:56:05,753 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 07:56:05,755 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 07:56:05,756 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 07:56:05,757 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 07:56:05,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 07:56:05,762 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 07:56:05,764 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 07:56:05,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 07:56:05,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 07:56:05,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 07:56:05,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 07:56:05,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 07:56:05,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 07:56:05,785 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 07:56:05,786 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 07:56:05,787 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 07:56:05,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 07:56:05,789 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 07:56:05,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 07:56:05,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 07:56:05,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 07:56:05,792 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 07:56:05,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 07:56:05,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 07:56:05,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 07:56:05,794 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 07:56:05,795 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 07:56:05,795 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 07:56:05,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 07:56:05,796 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 07:56:05,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 07:56:05,797 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 07:56:05,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 07:56:05,799 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 07:56:05,818 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 07:56:05,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 07:56:05,821 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 07:56:05,822 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 07:56:05,823 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 07:56:05,823 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 07:56:05,824 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 07:56:05,824 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 07:56:05,824 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 07:56:05,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 07:56:05,826 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 07:56:05,826 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 07:56:05,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 07:56:05,827 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 07:56:05,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 07:56:05,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 07:56:05,827 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 07:56:05,828 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 07:56:05,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 07:56:05,828 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 07:56:05,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 07:56:05,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 07:56:05,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 07:56:05,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 07:56:05,829 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 07:56:05,829 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 07:56:05,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 07:56:05,831 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 07:56:05,831 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 07:56:05,832 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 07:56:05,832 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 07:56:05,832 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de [2021-11-17 07:56:06,064 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 07:56:06,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 07:56:06,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 07:56:06,094 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 07:56:06,095 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 07:56:06,096 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2021-11-17 07:56:06,157 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c91a2c9a5/e9055f82970348ceb9078453773b5eeb/FLAG220f84882 [2021-11-17 07:56:06,909 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 07:56:06,910 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2021-11-17 07:56:06,963 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c91a2c9a5/e9055f82970348ceb9078453773b5eeb/FLAG220f84882 [2021-11-17 07:56:07,003 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c91a2c9a5/e9055f82970348ceb9078453773b5eeb [2021-11-17 07:56:07,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 07:56:07,008 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 07:56:07,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 07:56:07,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 07:56:07,035 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 07:56:07,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:56:07" (1/1) ... [2021-11-17 07:56:07,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b8b7ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:07, skipping insertion in model container [2021-11-17 07:56:07,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:56:07" (1/1) ... [2021-11-17 07:56:07,045 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 07:56:07,191 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 07:56:10,328 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2021-11-17 07:56:10,336 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2021-11-17 07:56:10,338 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2021-11-17 07:56:10,338 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2021-11-17 07:56:10,381 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 07:56:10,428 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 07:56:10,762 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2021-11-17 07:56:10,763 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2021-11-17 07:56:10,763 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2021-11-17 07:56:10,763 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2021-11-17 07:56:10,772 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 07:56:10,935 INFO L208 MainTranslator]: Completed translation [2021-11-17 07:56:10,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:10 WrapperNode [2021-11-17 07:56:10,936 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 07:56:10,937 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 07:56:10,937 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 07:56:10,938 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 07:56:10,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:10" (1/1) ... [2021-11-17 07:56:11,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:10" (1/1) ... [2021-11-17 07:56:11,239 INFO L137 Inliner]: procedures = 430, calls = 1706, calls flagged for inlining = 201, calls inlined = 185, statements flattened = 4082 [2021-11-17 07:56:11,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 07:56:11,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 07:56:11,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 07:56:11,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 07:56:11,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:10" (1/1) ... [2021-11-17 07:56:11,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:10" (1/1) ... [2021-11-17 07:56:11,284 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:10" (1/1) ... [2021-11-17 07:56:11,284 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:10" (1/1) ... [2021-11-17 07:56:11,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:10" (1/1) ... [2021-11-17 07:56:11,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:10" (1/1) ... [2021-11-17 07:56:11,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:10" (1/1) ... [2021-11-17 07:56:11,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 07:56:11,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 07:56:11,532 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 07:56:11,533 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 07:56:11,534 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:10" (1/1) ... [2021-11-17 07:56:11,541 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 07:56:11,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 07:56:11,569 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 07:56:11,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 07:56:11,610 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-11-17 07:56:11,610 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-11-17 07:56:11,610 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-17 07:56:11,611 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-17 07:56:11,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 07:56:11,611 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 07:56:11,611 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-17 07:56:11,611 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-17 07:56:11,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 07:56:11,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 07:56:11,612 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-17 07:56:11,612 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-17 07:56:11,612 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2021-11-17 07:56:11,612 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2021-11-17 07:56:11,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-17 07:56:11,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-17 07:56:11,612 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-17 07:56:11,613 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-17 07:56:11,613 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-11-17 07:56:11,613 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-11-17 07:56:11,613 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2021-11-17 07:56:11,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2021-11-17 07:56:11,613 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-11-17 07:56:11,613 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-11-17 07:56:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-17 07:56:11,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-17 07:56:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-17 07:56:11,614 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-17 07:56:11,615 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2021-11-17 07:56:11,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2021-11-17 07:56:11,615 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2021-11-17 07:56:11,615 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2021-11-17 07:56:11,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-17 07:56:11,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-17 07:56:11,616 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-17 07:56:11,616 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-17 07:56:11,616 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-11-17 07:56:11,616 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-11-17 07:56:11,616 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-17 07:56:11,616 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-17 07:56:11,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 07:56:11,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 07:56:11,617 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-17 07:56:11,617 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-17 07:56:11,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 07:56:11,618 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2021-11-17 07:56:11,618 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2021-11-17 07:56:11,618 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_remove [2021-11-17 07:56:11,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_remove [2021-11-17 07:56:11,618 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 07:56:11,618 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 07:56:11,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 07:56:11,618 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-17 07:56:11,618 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-17 07:56:11,618 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2021-11-17 07:56:11,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2021-11-17 07:56:11,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 07:56:11,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-17 07:56:11,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-17 07:56:11,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 07:56:11,619 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-17 07:56:11,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-17 07:56:11,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 07:56:11,619 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 07:56:11,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-17 07:56:11,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-17 07:56:11,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-17 07:56:11,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-17 07:56:11,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-17 07:56:11,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-17 07:56:11,620 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-17 07:56:11,620 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-17 07:56:11,620 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-17 07:56:11,620 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-17 07:56:11,620 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-17 07:56:11,620 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-17 07:56:11,620 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2021-11-17 07:56:11,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2021-11-17 07:56:11,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-17 07:56:11,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-17 07:56:11,620 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2021-11-17 07:56:11,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2021-11-17 07:56:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 07:56:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-17 07:56:11,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-17 07:56:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-17 07:56:11,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-17 07:56:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 07:56:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 07:56:11,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 07:56:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 07:56:11,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 07:56:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 07:56:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-11-17 07:56:11,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-11-17 07:56:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 07:56:11,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 07:56:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2021-11-17 07:56:11,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2021-11-17 07:56:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-17 07:56:11,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-17 07:56:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-11-17 07:56:11,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-11-17 07:56:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 07:56:11,622 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 07:56:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-17 07:56:11,623 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-17 07:56:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-17 07:56:11,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-17 07:56:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2021-11-17 07:56:11,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2021-11-17 07:56:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2021-11-17 07:56:11,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2021-11-17 07:56:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-11-17 07:56:11,623 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-11-17 07:56:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-17 07:56:11,624 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-17 07:56:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2021-11-17 07:56:11,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2021-11-17 07:56:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-11-17 07:56:11,624 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-11-17 07:56:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 07:56:11,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 07:56:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2021-11-17 07:56:11,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2021-11-17 07:56:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 07:56:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 07:56:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 07:56:11,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 07:56:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2021-11-17 07:56:11,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2021-11-17 07:56:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-17 07:56:11,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-17 07:56:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-17 07:56:11,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-17 07:56:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-17 07:56:11,625 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-17 07:56:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-17 07:56:11,625 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-17 07:56:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-17 07:56:11,625 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-17 07:56:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2021-11-17 07:56:11,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2021-11-17 07:56:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2021-11-17 07:56:11,626 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2021-11-17 07:56:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 07:56:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-17 07:56:11,626 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-17 07:56:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 07:56:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_ipg_nic_private [2021-11-17 07:56:11,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_ipg_nic_private [2021-11-17 07:56:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2021-11-17 07:56:11,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2021-11-17 07:56:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2021-11-17 07:56:11,626 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2021-11-17 07:56:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 07:56:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-17 07:56:11,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-17 07:56:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-17 07:56:11,627 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-17 07:56:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 07:56:11,627 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 07:56:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-17 07:56:11,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-17 07:56:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-17 07:56:11,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-17 07:56:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-17 07:56:11,627 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-17 07:56:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2021-11-17 07:56:11,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2021-11-17 07:56:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2021-11-17 07:56:11,628 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2021-11-17 07:56:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-17 07:56:11,628 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-17 07:56:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-17 07:56:11,629 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-17 07:56:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-17 07:56:11,629 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-17 07:56:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-17 07:56:11,629 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-17 07:56:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 07:56:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-11-17 07:56:11,630 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-11-17 07:56:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 07:56:11,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 07:56:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nway_reset [2021-11-17 07:56:11,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nway_reset [2021-11-17 07:56:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2021-11-17 07:56:11,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2021-11-17 07:56:11,631 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2021-11-17 07:56:11,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2021-11-17 07:56:11,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2021-11-17 07:56:11,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2021-11-17 07:56:11,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_ipg_nic_private [2021-11-17 07:56:11,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_ipg_nic_private [2021-11-17 07:56:11,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-17 07:56:11,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-17 07:56:11,632 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2021-11-17 07:56:11,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2021-11-17 07:56:11,632 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-17 07:56:11,632 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-17 07:56:11,632 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-17 07:56:11,632 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-17 07:56:11,632 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-17 07:56:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 07:56:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2021-11-17 07:56:11,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2021-11-17 07:56:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-17 07:56:11,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-17 07:56:12,425 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 07:56:12,428 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 07:56:13,148 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 07:56:15,416 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-17 07:56:15,472 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 07:56:15,496 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 07:56:15,497 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-17 07:56:15,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 07:56:15 BoogieIcfgContainer [2021-11-17 07:56:15,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 07:56:15,503 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 07:56:15,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 07:56:15,506 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 07:56:15,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:56:07" (1/3) ... [2021-11-17 07:56:15,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4af0d442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:56:15, skipping insertion in model container [2021-11-17 07:56:15,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:10" (2/3) ... [2021-11-17 07:56:15,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4af0d442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:56:15, skipping insertion in model container [2021-11-17 07:56:15,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 07:56:15" (3/3) ... [2021-11-17 07:56:15,509 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2021-11-17 07:56:15,514 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 07:56:15,514 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-17 07:56:15,559 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 07:56:15,565 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 07:56:15,565 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-17 07:56:15,610 INFO L276 IsEmpty]: Start isEmpty. Operand has 1682 states, 1129 states have (on average 1.25066430469442) internal successors, (1412), 1164 states have internal predecessors, (1412), 457 states have call successors, (457), 96 states have call predecessors, (457), 95 states have return successors, (451), 448 states have call predecessors, (451), 451 states have call successors, (451) [2021-11-17 07:56:15,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-17 07:56:15,622 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:56:15,623 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:56:15,624 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:56:15,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:56:15,628 INFO L85 PathProgramCache]: Analyzing trace with hash -434884534, now seen corresponding path program 1 times [2021-11-17 07:56:15,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:56:15,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480190917] [2021-11-17 07:56:15,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:56:15,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:56:15,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:16,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:56:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:16,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:16,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:56:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:16,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:16,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:16,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:56:16,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:16,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:16,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:16,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:56:16,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:16,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:16,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:56:16,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:16,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:16,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:56:16,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:16,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:16,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:16,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:56:16,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:16,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:16,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:56:16,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:16,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:16,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:16,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 07:56:16,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:16,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-17 07:56:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:16,456 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-11-17 07:56:16,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:56:16,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480190917] [2021-11-17 07:56:16,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480190917] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:56:16,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:56:16,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:56:16,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759881508] [2021-11-17 07:56:16,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:56:16,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:56:16,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:56:16,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:56:16,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:56:16,504 INFO L87 Difference]: Start difference. First operand has 1682 states, 1129 states have (on average 1.25066430469442) internal successors, (1412), 1164 states have internal predecessors, (1412), 457 states have call successors, (457), 96 states have call predecessors, (457), 95 states have return successors, (451), 448 states have call predecessors, (451), 451 states have call successors, (451) Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-17 07:56:20,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:56:20,742 INFO L93 Difference]: Finished difference Result 5034 states and 7130 transitions. [2021-11-17 07:56:20,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:56:20,749 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 116 [2021-11-17 07:56:20,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:56:20,790 INFO L225 Difference]: With dead ends: 5034 [2021-11-17 07:56:20,791 INFO L226 Difference]: Without dead ends: 3363 [2021-11-17 07:56:20,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:56:20,811 INFO L933 BasicCegarLoop]: 2401 mSDtfsCounter, 2950 mSDsluCounter, 2387 mSDsCounter, 0 mSdLazyCounter, 1648 mSolverCounterSat, 1415 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3356 SdHoareTripleChecker+Valid, 4788 SdHoareTripleChecker+Invalid, 3063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1415 IncrementalHoareTripleChecker+Valid, 1648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-17 07:56:20,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3356 Valid, 4788 Invalid, 3063 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1415 Valid, 1648 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-11-17 07:56:20,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3363 states. [2021-11-17 07:56:21,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3363 to 3223. [2021-11-17 07:56:21,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3223 states, 2176 states have (on average 1.2440257352941178) internal successors, (2707), 2243 states have internal predecessors, (2707), 858 states have call successors, (858), 187 states have call predecessors, (858), 186 states have return successors, (854), 848 states have call predecessors, (854), 854 states have call successors, (854) [2021-11-17 07:56:21,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3223 states to 3223 states and 4419 transitions. [2021-11-17 07:56:21,124 INFO L78 Accepts]: Start accepts. Automaton has 3223 states and 4419 transitions. Word has length 116 [2021-11-17 07:56:21,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:56:21,125 INFO L470 AbstractCegarLoop]: Abstraction has 3223 states and 4419 transitions. [2021-11-17 07:56:21,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-17 07:56:21,126 INFO L276 IsEmpty]: Start isEmpty. Operand 3223 states and 4419 transitions. [2021-11-17 07:56:21,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-17 07:56:21,130 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:56:21,131 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:56:21,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 07:56:21,131 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:56:21,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:56:21,132 INFO L85 PathProgramCache]: Analyzing trace with hash -16530084, now seen corresponding path program 1 times [2021-11-17 07:56:21,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:56:21,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915207426] [2021-11-17 07:56:21,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:56:21,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:56:21,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:21,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:56:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:21,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:21,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:21,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:56:21,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:21,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:21,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:21,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:56:21,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:21,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:21,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:21,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:56:21,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:21,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:21,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:56:21,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:21,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:21,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:21,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:56:21,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:21,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:21,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:56:21,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:21,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:21,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:21,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:56:21,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:21,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:21,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:21,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 07:56:21,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:21,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 07:56:21,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:21,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-17 07:56:21,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:21,396 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-11-17 07:56:21,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:56:21,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915207426] [2021-11-17 07:56:21,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915207426] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:56:21,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:56:21,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:56:21,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104033853] [2021-11-17 07:56:21,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:56:21,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:56:21,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:56:21,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:56:21,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:56:21,400 INFO L87 Difference]: Start difference. First operand 3223 states and 4419 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-17 07:56:25,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:56:25,157 INFO L93 Difference]: Finished difference Result 9159 states and 12591 transitions. [2021-11-17 07:56:25,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:56:25,157 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 120 [2021-11-17 07:56:25,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:56:25,258 INFO L225 Difference]: With dead ends: 9159 [2021-11-17 07:56:25,259 INFO L226 Difference]: Without dead ends: 5957 [2021-11-17 07:56:25,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:56:25,277 INFO L933 BasicCegarLoop]: 2426 mSDtfsCounter, 2421 mSDsluCounter, 2410 mSDsCounter, 0 mSdLazyCounter, 1534 mSolverCounterSat, 1321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2754 SdHoareTripleChecker+Valid, 4836 SdHoareTripleChecker+Invalid, 2855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1321 IncrementalHoareTripleChecker+Valid, 1534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-17 07:56:25,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2754 Valid, 4836 Invalid, 2855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1321 Valid, 1534 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-11-17 07:56:25,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5957 states. [2021-11-17 07:56:25,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5957 to 5678. [2021-11-17 07:56:25,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5678 states, 3827 states have (on average 1.23281944081526) internal successors, (4718), 3941 states have internal predecessors, (4718), 1503 states have call successors, (1503), 352 states have call predecessors, (1503), 345 states have return successors, (1519), 1470 states have call predecessors, (1519), 1499 states have call successors, (1519) [2021-11-17 07:56:25,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5678 states to 5678 states and 7740 transitions. [2021-11-17 07:56:25,587 INFO L78 Accepts]: Start accepts. Automaton has 5678 states and 7740 transitions. Word has length 120 [2021-11-17 07:56:25,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:56:25,591 INFO L470 AbstractCegarLoop]: Abstraction has 5678 states and 7740 transitions. [2021-11-17 07:56:25,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-17 07:56:25,591 INFO L276 IsEmpty]: Start isEmpty. Operand 5678 states and 7740 transitions. [2021-11-17 07:56:25,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-17 07:56:25,599 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:56:25,599 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 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] [2021-11-17 07:56:25,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 07:56:25,600 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:56:25,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:56:25,601 INFO L85 PathProgramCache]: Analyzing trace with hash -237511787, now seen corresponding path program 1 times [2021-11-17 07:56:25,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:56:25,601 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679765798] [2021-11-17 07:56:25,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:56:25,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:56:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:25,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:56:25,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:25,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:25,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:56:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:25,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:25,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:25,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:56:25,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:25,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:25,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:56:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:25,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:25,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:25,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:56:25,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:25,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:25,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:25,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:56:25,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:25,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:25,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:56:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:25,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:25,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:25,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:56:25,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:25,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:25,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:25,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 07:56:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:26,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 07:56:26,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:26,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 07:56:26,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:26,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:26,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:26,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:26,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 07:56:26,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:26,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 07:56:26,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:26,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 07:56:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:26,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-17 07:56:26,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:26,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-17 07:56:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:26,076 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2021-11-17 07:56:26,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:56:26,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679765798] [2021-11-17 07:56:26,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679765798] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:56:26,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:56:26,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 07:56:26,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352570049] [2021-11-17 07:56:26,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:56:26,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 07:56:26,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:56:26,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 07:56:26,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-17 07:56:26,083 INFO L87 Difference]: Start difference. First operand 5678 states and 7740 transitions. Second operand has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-17 07:56:33,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:56:33,432 INFO L93 Difference]: Finished difference Result 15052 states and 20562 transitions. [2021-11-17 07:56:33,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 07:56:33,434 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 165 [2021-11-17 07:56:33,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:56:33,500 INFO L225 Difference]: With dead ends: 15052 [2021-11-17 07:56:33,500 INFO L226 Difference]: Without dead ends: 9395 [2021-11-17 07:56:33,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-17 07:56:33,536 INFO L933 BasicCegarLoop]: 3245 mSDtfsCounter, 6036 mSDsluCounter, 3854 mSDsCounter, 0 mSdLazyCounter, 4769 mSolverCounterSat, 2863 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6725 SdHoareTripleChecker+Valid, 7099 SdHoareTripleChecker+Invalid, 7632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2863 IncrementalHoareTripleChecker+Valid, 4769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-11-17 07:56:33,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6725 Valid, 7099 Invalid, 7632 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2863 Valid, 4769 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2021-11-17 07:56:33,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9395 states. [2021-11-17 07:56:33,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9395 to 8879. [2021-11-17 07:56:33,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8879 states, 6050 states have (on average 1.2320661157024793) internal successors, (7454), 6220 states have internal predecessors, (7454), 2268 states have call successors, (2268), 570 states have call predecessors, (2268), 558 states have return successors, (2277), 2218 states have call predecessors, (2277), 2264 states have call successors, (2277) [2021-11-17 07:56:34,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8879 states to 8879 states and 11999 transitions. [2021-11-17 07:56:34,034 INFO L78 Accepts]: Start accepts. Automaton has 8879 states and 11999 transitions. Word has length 165 [2021-11-17 07:56:34,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:56:34,037 INFO L470 AbstractCegarLoop]: Abstraction has 8879 states and 11999 transitions. [2021-11-17 07:56:34,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-17 07:56:34,038 INFO L276 IsEmpty]: Start isEmpty. Operand 8879 states and 11999 transitions. [2021-11-17 07:56:34,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-17 07:56:34,042 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:56:34,042 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:56:34,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 07:56:34,043 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:56:34,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:56:34,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1787739659, now seen corresponding path program 1 times [2021-11-17 07:56:34,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:56:34,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548202054] [2021-11-17 07:56:34,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:56:34,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:56:34,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:34,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:56:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:34,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:34,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:56:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:34,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:34,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:34,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:56:34,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:34,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:34,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:56:34,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:34,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:34,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:34,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:56:34,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:34,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:34,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:34,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:56:34,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:34,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:34,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:34,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:56:34,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:34,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:34,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:56:34,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:34,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:34,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:34,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 07:56:34,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:34,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 07:56:34,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:34,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 07:56:34,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:34,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:34,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:34,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:34,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 07:56:34,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:34,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 07:56:34,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:34,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 07:56:34,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:34,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-17 07:56:34,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:34,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-17 07:56:34,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:34,378 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2021-11-17 07:56:34,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:56:34,379 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548202054] [2021-11-17 07:56:34,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548202054] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:56:34,379 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:56:34,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:56:34,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305459939] [2021-11-17 07:56:34,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:56:34,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:56:34,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:56:34,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:56:34,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:56:34,386 INFO L87 Difference]: Start difference. First operand 8879 states and 11999 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-17 07:56:38,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:56:38,333 INFO L93 Difference]: Finished difference Result 21416 states and 29095 transitions. [2021-11-17 07:56:38,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:56:38,334 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 167 [2021-11-17 07:56:38,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:56:38,433 INFO L225 Difference]: With dead ends: 21416 [2021-11-17 07:56:38,433 INFO L226 Difference]: Without dead ends: 12558 [2021-11-17 07:56:38,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:56:38,484 INFO L933 BasicCegarLoop]: 2373 mSDtfsCounter, 2775 mSDsluCounter, 2367 mSDsCounter, 0 mSdLazyCounter, 1643 mSolverCounterSat, 1429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3163 SdHoareTripleChecker+Valid, 4740 SdHoareTripleChecker+Invalid, 3072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1429 IncrementalHoareTripleChecker+Valid, 1643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-17 07:56:38,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3163 Valid, 4740 Invalid, 3072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1429 Valid, 1643 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-11-17 07:56:38,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12558 states. [2021-11-17 07:56:39,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12558 to 11954. [2021-11-17 07:56:39,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11954 states, 8098 states have (on average 1.2325265497653741) internal successors, (9981), 8346 states have internal predecessors, (9981), 3076 states have call successors, (3076), 800 states have call predecessors, (3076), 777 states have return successors, (3094), 2982 states have call predecessors, (3094), 3072 states have call successors, (3094) [2021-11-17 07:56:39,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11954 states to 11954 states and 16151 transitions. [2021-11-17 07:56:39,121 INFO L78 Accepts]: Start accepts. Automaton has 11954 states and 16151 transitions. Word has length 167 [2021-11-17 07:56:39,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:56:39,123 INFO L470 AbstractCegarLoop]: Abstraction has 11954 states and 16151 transitions. [2021-11-17 07:56:39,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-17 07:56:39,124 INFO L276 IsEmpty]: Start isEmpty. Operand 11954 states and 16151 transitions. [2021-11-17 07:56:39,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-11-17 07:56:39,126 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:56:39,126 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:56:39,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 07:56:39,127 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 07:56:39,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:56:39,128 INFO L85 PathProgramCache]: Analyzing trace with hash 557013463, now seen corresponding path program 1 times [2021-11-17 07:56:39,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:56:39,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194534874] [2021-11-17 07:56:39,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:56:39,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:56:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:39,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:56:39,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:39,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:39,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:39,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:56:39,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:39,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:39,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:56:39,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:39,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:39,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:39,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:56:39,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:39,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:39,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:39,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:56:39,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:39,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:39,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:39,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:56:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:39,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:39,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:39,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:56:39,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:39,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:39,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:39,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:56:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:39,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:39,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 07:56:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:39,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 07:56:39,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:39,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 07:56:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:39,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 07:56:39,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:39,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 07:56:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:39,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:39,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:39,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:56:39,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:39,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 07:56:39,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:39,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 07:56:39,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:39,662 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2021-11-17 07:56:39,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:56:39,663 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194534874] [2021-11-17 07:56:39,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194534874] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:56:39,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:56:39,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:56:39,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046979646] [2021-11-17 07:56:39,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:56:39,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:56:39,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:56:39,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:56:39,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:56:39,664 INFO L87 Difference]: Start difference. First operand 11954 states and 16151 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (19), 4 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 07:56:42,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:56:42,293 INFO L93 Difference]: Finished difference Result 12535 states and 17058 transitions. [2021-11-17 07:56:42,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:56:42,294 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (19), 4 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 172 [2021-11-17 07:56:42,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:56:42,351 INFO L225 Difference]: With dead ends: 12535 [2021-11-17 07:56:42,352 INFO L226 Difference]: Without dead ends: 12533 [2021-11-17 07:56:42,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:56:42,359 INFO L933 BasicCegarLoop]: 2109 mSDtfsCounter, 2368 mSDsluCounter, 3977 mSDsCounter, 0 mSdLazyCounter, 1923 mSolverCounterSat, 1002 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2606 SdHoareTripleChecker+Valid, 6086 SdHoareTripleChecker+Invalid, 2925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1002 IncrementalHoareTripleChecker+Valid, 1923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-17 07:56:42,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2606 Valid, 6086 Invalid, 2925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1002 Valid, 1923 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-17 07:56:42,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12533 states. [2021-11-17 07:56:42,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12533 to 11958. [2021-11-17 07:56:42,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11958 states, 8101 states have (on average 1.2324404394519195) internal successors, (9984), 8349 states have internal predecessors, (9984), 3076 states have call successors, (3076), 801 states have call predecessors, (3076), 778 states have return successors, (3094), 2982 states have call predecessors, (3094), 3072 states have call successors, (3094) [2021-11-17 07:56:42,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11958 states to 11958 states and 16154 transitions. [2021-11-17 07:56:42,939 INFO L78 Accepts]: Start accepts. Automaton has 11958 states and 16154 transitions. Word has length 172 [2021-11-17 07:56:42,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:56:42,940 INFO L470 AbstractCegarLoop]: Abstraction has 11958 states and 16154 transitions. [2021-11-17 07:56:42,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (19), 4 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 07:56:42,940 INFO L276 IsEmpty]: Start isEmpty. Operand 11958 states and 16154 transitions. [2021-11-17 07:56:42,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-17 07:56:42,943 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:56:42,943 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:56:42,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 07:56:42,944 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:56:42,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:56:42,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1620405938, now seen corresponding path program 1 times [2021-11-17 07:56:42,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:56:42,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37674781] [2021-11-17 07:56:42,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:56:42,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:56:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:43,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:56:43,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:43,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:43,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:43,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:56:43,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:43,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:43,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:43,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:56:43,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:43,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:43,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:43,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:56:43,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:43,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:43,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:56:43,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:43,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:43,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:43,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:56:43,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:43,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:43,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:56:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:43,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:43,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:43,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:56:43,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:43,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:43,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:43,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 07:56:43,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:43,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 07:56:43,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:43,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 07:56:43,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:43,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 07:56:43,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:43,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 07:56:43,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:43,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:43,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:56:43,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:43,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 07:56:43,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:43,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 07:56:43,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:43,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 07:56:43,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:43,332 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2021-11-17 07:56:43,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:56:43,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37674781] [2021-11-17 07:56:43,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37674781] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:56:43,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:56:43,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:56:43,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129751086] [2021-11-17 07:56:43,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:56:43,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:56:43,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:56:43,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:56:43,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:56:43,335 INFO L87 Difference]: Start difference. First operand 11958 states and 16154 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 07:56:46,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:56:46,316 INFO L93 Difference]: Finished difference Result 12539 states and 17061 transitions. [2021-11-17 07:56:46,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:56:46,317 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 177 [2021-11-17 07:56:46,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:56:46,381 INFO L225 Difference]: With dead ends: 12539 [2021-11-17 07:56:46,381 INFO L226 Difference]: Without dead ends: 12537 [2021-11-17 07:56:46,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:56:46,392 INFO L933 BasicCegarLoop]: 2113 mSDtfsCounter, 2360 mSDsluCounter, 3980 mSDsCounter, 0 mSdLazyCounter, 1923 mSolverCounterSat, 1001 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2597 SdHoareTripleChecker+Valid, 6093 SdHoareTripleChecker+Invalid, 2924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1001 IncrementalHoareTripleChecker+Valid, 1923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-17 07:56:46,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2597 Valid, 6093 Invalid, 2924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1001 Valid, 1923 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-17 07:56:46,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12537 states. [2021-11-17 07:56:46,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12537 to 11962. [2021-11-17 07:56:46,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11962 states, 8104 states have (on average 1.2323543928923988) internal successors, (9987), 8352 states have internal predecessors, (9987), 3076 states have call successors, (3076), 802 states have call predecessors, (3076), 779 states have return successors, (3094), 2982 states have call predecessors, (3094), 3072 states have call successors, (3094) [2021-11-17 07:56:46,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11962 states to 11962 states and 16157 transitions. [2021-11-17 07:56:46,876 INFO L78 Accepts]: Start accepts. Automaton has 11962 states and 16157 transitions. Word has length 177 [2021-11-17 07:56:46,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:56:46,877 INFO L470 AbstractCegarLoop]: Abstraction has 11962 states and 16157 transitions. [2021-11-17 07:56:46,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 07:56:46,878 INFO L276 IsEmpty]: Start isEmpty. Operand 11962 states and 16157 transitions. [2021-11-17 07:56:46,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-11-17 07:56:46,880 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:56:46,881 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:56:46,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 07:56:46,882 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:56:46,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:56:46,882 INFO L85 PathProgramCache]: Analyzing trace with hash 290161655, now seen corresponding path program 1 times [2021-11-17 07:56:46,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:56:46,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652599291] [2021-11-17 07:56:46,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:56:46,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:56:46,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:47,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:56:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:47,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:47,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:47,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:56:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:47,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:47,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:47,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:56:47,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:47,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:47,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:47,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:56:47,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:47,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:47,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:47,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:56:47,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:47,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:47,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:47,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:56:47,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:47,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:47,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:47,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:56:47,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:47,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:47,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:47,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:56:47,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:47,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:47,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 07:56:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:47,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 07:56:47,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:47,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 07:56:47,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:47,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 07:56:47,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:47,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 07:56:47,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:47,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:47,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:47,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:56:47,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:47,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 07:56:47,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:47,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 07:56:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:47,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 07:56:47,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:47,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 07:56:47,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:47,314 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2021-11-17 07:56:47,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:56:47,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652599291] [2021-11-17 07:56:47,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652599291] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:56:47,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:56:47,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:56:47,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9946243] [2021-11-17 07:56:47,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:56:47,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:56:47,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:56:47,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:56:47,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:56:47,317 INFO L87 Difference]: Start difference. First operand 11962 states and 16157 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 07:56:49,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:56:49,750 INFO L93 Difference]: Finished difference Result 12543 states and 17064 transitions. [2021-11-17 07:56:49,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:56:49,750 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 182 [2021-11-17 07:56:49,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:56:49,813 INFO L225 Difference]: With dead ends: 12543 [2021-11-17 07:56:49,814 INFO L226 Difference]: Without dead ends: 12541 [2021-11-17 07:56:49,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:56:49,827 INFO L933 BasicCegarLoop]: 2112 mSDtfsCounter, 2360 mSDsluCounter, 3977 mSDsCounter, 0 mSdLazyCounter, 1923 mSolverCounterSat, 1000 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2598 SdHoareTripleChecker+Valid, 6089 SdHoareTripleChecker+Invalid, 2923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1000 IncrementalHoareTripleChecker+Valid, 1923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-17 07:56:49,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2598 Valid, 6089 Invalid, 2923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1000 Valid, 1923 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-17 07:56:49,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12541 states. [2021-11-17 07:56:50,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12541 to 11966. [2021-11-17 07:56:50,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11966 states, 8107 states have (on average 1.2322684100160355) internal successors, (9990), 8355 states have internal predecessors, (9990), 3076 states have call successors, (3076), 803 states have call predecessors, (3076), 780 states have return successors, (3094), 2982 states have call predecessors, (3094), 3072 states have call successors, (3094) [2021-11-17 07:56:50,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11966 states to 11966 states and 16160 transitions. [2021-11-17 07:56:50,391 INFO L78 Accepts]: Start accepts. Automaton has 11966 states and 16160 transitions. Word has length 182 [2021-11-17 07:56:50,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:56:50,392 INFO L470 AbstractCegarLoop]: Abstraction has 11966 states and 16160 transitions. [2021-11-17 07:56:50,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 07:56:50,392 INFO L276 IsEmpty]: Start isEmpty. Operand 11966 states and 16160 transitions. [2021-11-17 07:56:50,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-17 07:56:50,396 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:56:50,396 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:56:50,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 07:56:50,397 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:56:50,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:56:50,397 INFO L85 PathProgramCache]: Analyzing trace with hash 507826912, now seen corresponding path program 1 times [2021-11-17 07:56:50,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:56:50,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038689052] [2021-11-17 07:56:50,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:56:50,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:56:50,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:56:50,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:56:50,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:56:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:56:50,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:50,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:56:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:56:50,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:50,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:56:50,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:50,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:56:50,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:50,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 07:56:50,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 07:56:50,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 07:56:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 07:56:50,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 07:56:50,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:50,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:56:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 07:56:50,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 07:56:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-17 07:56:50,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 07:56:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 07:56:50,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 07:56:50,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 07:56:50,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:50,667 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2021-11-17 07:56:50,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:56:50,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038689052] [2021-11-17 07:56:50,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038689052] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:56:50,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:56:50,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 07:56:50,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966732127] [2021-11-17 07:56:50,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:56:50,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 07:56:50,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:56:50,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 07:56:50,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:56:50,670 INFO L87 Difference]: Start difference. First operand 11966 states and 16160 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-17 07:56:58,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:56:58,297 INFO L93 Difference]: Finished difference Result 36161 states and 49121 transitions. [2021-11-17 07:56:58,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 07:56:58,300 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 199 [2021-11-17 07:56:58,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:56:58,425 INFO L225 Difference]: With dead ends: 36161 [2021-11-17 07:56:58,425 INFO L226 Difference]: Without dead ends: 24291 [2021-11-17 07:56:58,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 07:56:58,497 INFO L933 BasicCegarLoop]: 2348 mSDtfsCounter, 4321 mSDsluCounter, 2658 mSDsCounter, 0 mSdLazyCounter, 2765 mSolverCounterSat, 3127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4584 SdHoareTripleChecker+Valid, 5006 SdHoareTripleChecker+Invalid, 5892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3127 IncrementalHoareTripleChecker+Valid, 2765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-17 07:56:58,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4584 Valid, 5006 Invalid, 5892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3127 Valid, 2765 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2021-11-17 07:56:58,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24291 states. [2021-11-17 07:56:59,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24291 to 23107. [2021-11-17 07:56:59,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23107 states, 15682 states have (on average 1.2317306466011988) internal successors, (19316), 16132 states have internal predecessors, (19316), 5908 states have call successors, (5908), 1551 states have call predecessors, (5908), 1514 states have return successors, (5948), 5773 states have call predecessors, (5948), 5904 states have call successors, (5948) [2021-11-17 07:56:59,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23107 states to 23107 states and 31172 transitions. [2021-11-17 07:56:59,762 INFO L78 Accepts]: Start accepts. Automaton has 23107 states and 31172 transitions. Word has length 199 [2021-11-17 07:56:59,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:56:59,765 INFO L470 AbstractCegarLoop]: Abstraction has 23107 states and 31172 transitions. [2021-11-17 07:56:59,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-17 07:56:59,765 INFO L276 IsEmpty]: Start isEmpty. Operand 23107 states and 31172 transitions. [2021-11-17 07:56:59,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-17 07:56:59,770 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:56:59,770 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:56:59,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 07:56:59,770 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:56:59,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:56:59,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1030513118, now seen corresponding path program 1 times [2021-11-17 07:56:59,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:56:59,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973711406] [2021-11-17 07:56:59,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:56:59,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:56:59,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:59,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:56:59,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:59,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:59,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:56:59,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:59,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:59,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:56:59,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:59,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:59,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:59,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:56:59,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:59,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:59,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:59,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:56:59,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:59,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:59,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:59,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:56:59,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:59,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:59,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:59,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:56:59,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:59,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:59,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:56:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:59,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:56:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:59,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 07:56:59,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:59,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 07:56:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:59,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 07:56:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:59,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 07:56:59,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:56:59,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 07:56:59,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:00,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:00,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:00,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:57:00,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:00,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 07:57:00,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:00,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 07:57:00,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:00,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-17 07:57:00,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:00,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 07:57:00,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:00,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 07:57:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:00,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 07:57:00,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:00,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 07:57:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:00,280 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2021-11-17 07:57:00,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:57:00,281 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973711406] [2021-11-17 07:57:00,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973711406] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:57:00,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:57:00,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 07:57:00,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40046343] [2021-11-17 07:57:00,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:57:00,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 07:57:00,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:57:00,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 07:57:00,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:57:00,283 INFO L87 Difference]: Start difference. First operand 23107 states and 31172 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-17 07:57:08,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:57:08,440 INFO L93 Difference]: Finished difference Result 58976 states and 79978 transitions. [2021-11-17 07:57:08,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 07:57:08,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 199 [2021-11-17 07:57:08,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:57:08,603 INFO L225 Difference]: With dead ends: 58976 [2021-11-17 07:57:08,603 INFO L226 Difference]: Without dead ends: 35965 [2021-11-17 07:57:08,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 07:57:08,683 INFO L933 BasicCegarLoop]: 3873 mSDtfsCounter, 2986 mSDsluCounter, 3539 mSDsCounter, 0 mSdLazyCounter, 2953 mSolverCounterSat, 2275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3250 SdHoareTripleChecker+Valid, 7412 SdHoareTripleChecker+Invalid, 5228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2275 IncrementalHoareTripleChecker+Valid, 2953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-11-17 07:57:08,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3250 Valid, 7412 Invalid, 5228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2275 Valid, 2953 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2021-11-17 07:57:08,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35965 states. [2021-11-17 07:57:10,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35965 to 34236. [2021-11-17 07:57:10,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34236 states, 23245 states have (on average 1.2316627231662722) internal successors, (28630), 23897 states have internal predecessors, (28630), 8740 states have call successors, (8740), 2299 states have call predecessors, (8740), 2248 states have return successors, (8802), 8564 states have call predecessors, (8802), 8736 states have call successors, (8802) [2021-11-17 07:57:10,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34236 states to 34236 states and 46172 transitions. [2021-11-17 07:57:10,430 INFO L78 Accepts]: Start accepts. Automaton has 34236 states and 46172 transitions. Word has length 199 [2021-11-17 07:57:10,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:57:10,431 INFO L470 AbstractCegarLoop]: Abstraction has 34236 states and 46172 transitions. [2021-11-17 07:57:10,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-17 07:57:10,431 INFO L276 IsEmpty]: Start isEmpty. Operand 34236 states and 46172 transitions. [2021-11-17 07:57:10,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-17 07:57:10,435 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:57:10,435 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 3, 3, 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] [2021-11-17 07:57:10,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 07:57:10,436 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:57:10,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:57:10,436 INFO L85 PathProgramCache]: Analyzing trace with hash -525210962, now seen corresponding path program 1 times [2021-11-17 07:57:10,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:57:10,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137750784] [2021-11-17 07:57:10,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:57:10,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:57:10,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:10,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:57:10,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:10,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:10,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:57:10,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:10,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:10,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:10,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:57:10,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:10,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:10,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:57:10,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:10,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:10,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:57:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:10,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:10,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:10,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:57:10,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:10,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:10,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:10,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:57:10,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:10,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:10,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:10,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:57:10,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:10,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:10,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:10,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 07:57:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:10,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 07:57:10,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:10,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 07:57:10,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:10,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 07:57:10,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:10,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 07:57:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:10,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:10,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:10,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:57:10,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:10,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 07:57:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:10,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 07:57:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:10,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 07:57:10,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:10,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 07:57:10,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:10,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 07:57:11,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:11,004 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2021-11-17 07:57:11,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:57:11,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137750784] [2021-11-17 07:57:11,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137750784] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:57:11,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:57:11,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:57:11,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421467808] [2021-11-17 07:57:11,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:57:11,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:57:11,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:57:11,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:57:11,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:57:11,007 INFO L87 Difference]: Start difference. First operand 34236 states and 46172 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 07:57:14,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:57:14,276 INFO L93 Difference]: Finished difference Result 35967 states and 48867 transitions. [2021-11-17 07:57:14,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:57:14,277 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 187 [2021-11-17 07:57:14,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:57:14,449 INFO L225 Difference]: With dead ends: 35967 [2021-11-17 07:57:14,449 INFO L226 Difference]: Without dead ends: 35965 [2021-11-17 07:57:14,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:57:14,476 INFO L933 BasicCegarLoop]: 2111 mSDtfsCounter, 2360 mSDsluCounter, 3974 mSDsCounter, 0 mSdLazyCounter, 1923 mSolverCounterSat, 999 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2599 SdHoareTripleChecker+Valid, 6085 SdHoareTripleChecker+Invalid, 2922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 999 IncrementalHoareTripleChecker+Valid, 1923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-17 07:57:14,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2599 Valid, 6085 Invalid, 2922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [999 Valid, 1923 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-17 07:57:14,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35965 states. [2021-11-17 07:57:15,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35965 to 34240. [2021-11-17 07:57:16,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34240 states, 23248 states have (on average 1.23163282863042) internal successors, (28633), 23900 states have internal predecessors, (28633), 8740 states have call successors, (8740), 2300 states have call predecessors, (8740), 2249 states have return successors, (8802), 8564 states have call predecessors, (8802), 8736 states have call successors, (8802) [2021-11-17 07:57:16,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34240 states to 34240 states and 46175 transitions. [2021-11-17 07:57:16,386 INFO L78 Accepts]: Start accepts. Automaton has 34240 states and 46175 transitions. Word has length 187 [2021-11-17 07:57:16,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:57:16,387 INFO L470 AbstractCegarLoop]: Abstraction has 34240 states and 46175 transitions. [2021-11-17 07:57:16,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 07:57:16,387 INFO L276 IsEmpty]: Start isEmpty. Operand 34240 states and 46175 transitions. [2021-11-17 07:57:16,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-17 07:57:16,397 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:57:16,398 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:57:16,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 07:57:16,398 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:57:16,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:57:16,399 INFO L85 PathProgramCache]: Analyzing trace with hash 129971735, now seen corresponding path program 1 times [2021-11-17 07:57:16,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:57:16,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117701169] [2021-11-17 07:57:16,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:57:16,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:57:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:16,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:57:16,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:16,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:16,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:16,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:57:16,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:16,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:16,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:16,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:57:16,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:16,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:16,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:16,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:57:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:16,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:16,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:57:16,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:16,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:16,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:16,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:57:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:16,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:16,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:16,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:57:16,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:16,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:16,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:16,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:57:16,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:16,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:16,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:16,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 07:57:16,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:16,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 07:57:16,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:16,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 07:57:16,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:16,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 07:57:16,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:16,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 07:57:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:16,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:16,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:57:16,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:16,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 07:57:16,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:16,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 07:57:16,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:16,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 07:57:16,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:16,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 07:57:16,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:16,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 07:57:16,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:16,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-11-17 07:57:16,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:16,762 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2021-11-17 07:57:16,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:57:16,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117701169] [2021-11-17 07:57:16,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117701169] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:57:16,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:57:16,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:57:16,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622602649] [2021-11-17 07:57:16,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:57:16,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:57:16,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:57:16,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:57:16,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:57:16,766 INFO L87 Difference]: Start difference. First operand 34240 states and 46175 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (23), 4 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 07:57:20,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:57:20,203 INFO L93 Difference]: Finished difference Result 35971 states and 48870 transitions. [2021-11-17 07:57:20,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:57:20,204 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (23), 4 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 192 [2021-11-17 07:57:20,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:57:20,360 INFO L225 Difference]: With dead ends: 35971 [2021-11-17 07:57:20,360 INFO L226 Difference]: Without dead ends: 35969 [2021-11-17 07:57:20,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:57:20,384 INFO L933 BasicCegarLoop]: 2112 mSDtfsCounter, 2360 mSDsluCounter, 3977 mSDsCounter, 0 mSdLazyCounter, 1923 mSolverCounterSat, 998 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2598 SdHoareTripleChecker+Valid, 6089 SdHoareTripleChecker+Invalid, 2921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 998 IncrementalHoareTripleChecker+Valid, 1923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-17 07:57:20,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2598 Valid, 6089 Invalid, 2921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [998 Valid, 1923 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-17 07:57:20,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35969 states. [2021-11-17 07:57:21,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35969 to 34244. [2021-11-17 07:57:21,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34244 states, 23251 states have (on average 1.2316029418089545) internal successors, (28636), 23903 states have internal predecessors, (28636), 8740 states have call successors, (8740), 2301 states have call predecessors, (8740), 2250 states have return successors, (8802), 8564 states have call predecessors, (8802), 8736 states have call successors, (8802) [2021-11-17 07:57:21,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34244 states to 34244 states and 46178 transitions. [2021-11-17 07:57:21,898 INFO L78 Accepts]: Start accepts. Automaton has 34244 states and 46178 transitions. Word has length 192 [2021-11-17 07:57:21,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:57:21,899 INFO L470 AbstractCegarLoop]: Abstraction has 34244 states and 46178 transitions. [2021-11-17 07:57:21,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (23), 4 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 07:57:21,899 INFO L276 IsEmpty]: Start isEmpty. Operand 34244 states and 46178 transitions. [2021-11-17 07:57:21,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-11-17 07:57:21,904 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:57:21,905 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:57:21,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 07:57:21,905 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 07:57:21,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:57:21,906 INFO L85 PathProgramCache]: Analyzing trace with hash -275596274, now seen corresponding path program 1 times [2021-11-17 07:57:21,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:57:21,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331319641] [2021-11-17 07:57:21,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:57:21,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:57:21,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:57:22,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:22,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:57:22,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:22,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:57:22,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:22,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:57:22,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:57:22,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:57:22,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:22,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:57:22,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:22,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:57:22,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:22,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 07:57:22,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 07:57:22,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 07:57:22,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 07:57:22,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 07:57:22,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:57:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 07:57:22,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 07:57:22,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 07:57:22,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 07:57:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 07:57:22,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-11-17 07:57:22,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-17 07:57:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:22,213 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2021-11-17 07:57:22,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:57:22,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331319641] [2021-11-17 07:57:22,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331319641] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:57:22,215 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:57:22,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:57:22,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108231228] [2021-11-17 07:57:22,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:57:22,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:57:22,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:57:22,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:57:22,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:57:22,217 INFO L87 Difference]: Start difference. First operand 34244 states and 46178 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-17 07:57:25,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:57:25,855 INFO L93 Difference]: Finished difference Result 35975 states and 48873 transitions. [2021-11-17 07:57:25,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:57:25,856 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 197 [2021-11-17 07:57:25,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:57:25,971 INFO L225 Difference]: With dead ends: 35975 [2021-11-17 07:57:25,971 INFO L226 Difference]: Without dead ends: 35973 [2021-11-17 07:57:25,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:57:25,987 INFO L933 BasicCegarLoop]: 2113 mSDtfsCounter, 2360 mSDsluCounter, 3980 mSDsCounter, 0 mSdLazyCounter, 1923 mSolverCounterSat, 997 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2597 SdHoareTripleChecker+Valid, 6093 SdHoareTripleChecker+Invalid, 2920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 997 IncrementalHoareTripleChecker+Valid, 1923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-17 07:57:25,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2597 Valid, 6093 Invalid, 2920 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [997 Valid, 1923 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-17 07:57:26,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35973 states. [2021-11-17 07:57:27,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35973 to 34248. [2021-11-17 07:57:27,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34248 states, 23254 states have (on average 1.2315730626988906) internal successors, (28639), 23906 states have internal predecessors, (28639), 8740 states have call successors, (8740), 2302 states have call predecessors, (8740), 2251 states have return successors, (8802), 8564 states have call predecessors, (8802), 8736 states have call successors, (8802) [2021-11-17 07:57:27,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34248 states to 34248 states and 46181 transitions. [2021-11-17 07:57:27,422 INFO L78 Accepts]: Start accepts. Automaton has 34248 states and 46181 transitions. Word has length 197 [2021-11-17 07:57:27,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:57:27,423 INFO L470 AbstractCegarLoop]: Abstraction has 34248 states and 46181 transitions. [2021-11-17 07:57:27,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-17 07:57:27,423 INFO L276 IsEmpty]: Start isEmpty. Operand 34248 states and 46181 transitions. [2021-11-17 07:57:27,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-11-17 07:57:27,428 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:57:27,429 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:57:27,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-17 07:57:27,429 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:57:27,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:57:27,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1916506057, now seen corresponding path program 1 times [2021-11-17 07:57:27,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:57:27,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195667926] [2021-11-17 07:57:27,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:57:27,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:57:27,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:57:27,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:27,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:57:27,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:57:27,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:27,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:57:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:27,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:57:27,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:27,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:57:27,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:57:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:57:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:27,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 07:57:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 07:57:27,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 07:57:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 07:57:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 07:57:27,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:57:27,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 07:57:27,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 07:57:27,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 07:57:27,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 07:57:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 07:57:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-11-17 07:57:27,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-17 07:57:27,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 07:57:27,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:27,751 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2021-11-17 07:57:27,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:57:27,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195667926] [2021-11-17 07:57:27,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195667926] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:57:27,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:57:27,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:57:27,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433503251] [2021-11-17 07:57:27,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:57:27,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:57:27,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:57:27,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:57:27,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:57:27,754 INFO L87 Difference]: Start difference. First operand 34248 states and 46181 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 07:57:32,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:57:32,157 INFO L93 Difference]: Finished difference Result 43074 states and 57930 transitions. [2021-11-17 07:57:32,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 07:57:32,158 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 202 [2021-11-17 07:57:32,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:57:32,336 INFO L225 Difference]: With dead ends: 43074 [2021-11-17 07:57:32,337 INFO L226 Difference]: Without dead ends: 43072 [2021-11-17 07:57:32,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:57:32,364 INFO L933 BasicCegarLoop]: 2280 mSDtfsCounter, 2147 mSDsluCounter, 4766 mSDsCounter, 0 mSdLazyCounter, 2645 mSolverCounterSat, 1001 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2396 SdHoareTripleChecker+Valid, 7046 SdHoareTripleChecker+Invalid, 3646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1001 IncrementalHoareTripleChecker+Valid, 2645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-17 07:57:32,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2396 Valid, 7046 Invalid, 3646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1001 Valid, 2645 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-17 07:57:32,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43072 states. [2021-11-17 07:57:33,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43072 to 40897. [2021-11-17 07:57:33,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40897 states, 27391 states have (on average 1.2226643788105582) internal successors, (33490), 28094 states have internal predecessors, (33490), 10528 states have call successors, (10528), 3026 states have call predecessors, (10528), 2975 states have return successors, (10590), 10352 states have call predecessors, (10590), 10524 states have call successors, (10590) [2021-11-17 07:57:34,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40897 states to 40897 states and 54608 transitions. [2021-11-17 07:57:34,103 INFO L78 Accepts]: Start accepts. Automaton has 40897 states and 54608 transitions. Word has length 202 [2021-11-17 07:57:34,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:57:34,103 INFO L470 AbstractCegarLoop]: Abstraction has 40897 states and 54608 transitions. [2021-11-17 07:57:34,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 07:57:34,104 INFO L276 IsEmpty]: Start isEmpty. Operand 40897 states and 54608 transitions. [2021-11-17 07:57:34,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-17 07:57:34,109 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:57:34,110 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 8, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:57:34,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-17 07:57:34,110 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:57:34,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:57:34,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1802042002, now seen corresponding path program 1 times [2021-11-17 07:57:34,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:57:34,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489263552] [2021-11-17 07:57:34,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:57:34,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:57:34,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:57:34,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:57:34,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:57:34,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:34,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:57:34,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:57:34,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:34,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:57:34,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:57:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:34,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:57:34,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 07:57:34,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 07:57:34,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 07:57:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 07:57:34,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 07:57:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:57:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 07:57:34,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 07:57:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 07:57:34,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 07:57:34,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 07:57:34,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-11-17 07:57:34,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-17 07:57:34,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 07:57:34,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 07:57:34,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:34,595 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2021-11-17 07:57:34,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:57:34,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489263552] [2021-11-17 07:57:34,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489263552] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:57:34,596 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:57:34,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:57:34,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338916648] [2021-11-17 07:57:34,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:57:34,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:57:34,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:57:34,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:57:34,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:57:34,598 INFO L87 Difference]: Start difference. First operand 40897 states and 54608 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 07:57:38,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:57:38,221 INFO L93 Difference]: Finished difference Result 43078 states and 57933 transitions. [2021-11-17 07:57:38,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:57:38,222 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 207 [2021-11-17 07:57:38,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:57:38,368 INFO L225 Difference]: With dead ends: 43078 [2021-11-17 07:57:38,369 INFO L226 Difference]: Without dead ends: 43076 [2021-11-17 07:57:38,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:57:38,389 INFO L933 BasicCegarLoop]: 2112 mSDtfsCounter, 2360 mSDsluCounter, 3977 mSDsCounter, 0 mSdLazyCounter, 1923 mSolverCounterSat, 995 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2598 SdHoareTripleChecker+Valid, 6089 SdHoareTripleChecker+Invalid, 2918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 995 IncrementalHoareTripleChecker+Valid, 1923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-17 07:57:38,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2598 Valid, 6089 Invalid, 2918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [995 Valid, 1923 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-17 07:57:38,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43076 states. [2021-11-17 07:57:40,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43076 to 40901. [2021-11-17 07:57:40,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40901 states, 27394 states have (on average 1.222639994159305) internal successors, (33493), 28097 states have internal predecessors, (33493), 10528 states have call successors, (10528), 3027 states have call predecessors, (10528), 2976 states have return successors, (10590), 10352 states have call predecessors, (10590), 10524 states have call successors, (10590) [2021-11-17 07:57:40,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40901 states to 40901 states and 54611 transitions. [2021-11-17 07:57:40,448 INFO L78 Accepts]: Start accepts. Automaton has 40901 states and 54611 transitions. Word has length 207 [2021-11-17 07:57:40,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:57:40,449 INFO L470 AbstractCegarLoop]: Abstraction has 40901 states and 54611 transitions. [2021-11-17 07:57:40,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 07:57:40,449 INFO L276 IsEmpty]: Start isEmpty. Operand 40901 states and 54611 transitions. [2021-11-17 07:57:40,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-11-17 07:57:40,455 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:57:40,456 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 9, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:57:40,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-17 07:57:40,456 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 07:57:40,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:57:40,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1592708521, now seen corresponding path program 1 times [2021-11-17 07:57:40,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:57:40,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037558468] [2021-11-17 07:57:40,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:57:40,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:57:40,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:57:40,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:40,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:57:40,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:40,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:57:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:40,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:57:40,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:40,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:57:40,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:40,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:57:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:40,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:57:40,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:40,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:57:40,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 07:57:40,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 07:57:40,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 07:57:40,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 07:57:40,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 07:57:40,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:57:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 07:57:40,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 07:57:40,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 07:57:40,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 07:57:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 07:57:40,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-11-17 07:57:40,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-17 07:57:40,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 07:57:40,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 07:57:40,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 07:57:40,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:40,782 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2021-11-17 07:57:40,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:57:40,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037558468] [2021-11-17 07:57:40,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037558468] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:57:40,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:57:40,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:57:40,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617395240] [2021-11-17 07:57:40,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:57:40,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:57:40,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:57:40,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:57:40,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:57:40,785 INFO L87 Difference]: Start difference. First operand 40901 states and 54611 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-17 07:57:44,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:57:44,521 INFO L93 Difference]: Finished difference Result 43082 states and 57936 transitions. [2021-11-17 07:57:44,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:57:44,522 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 212 [2021-11-17 07:57:44,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:57:44,669 INFO L225 Difference]: With dead ends: 43082 [2021-11-17 07:57:44,669 INFO L226 Difference]: Without dead ends: 43080 [2021-11-17 07:57:44,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:57:44,691 INFO L933 BasicCegarLoop]: 2113 mSDtfsCounter, 2360 mSDsluCounter, 3980 mSDsCounter, 0 mSdLazyCounter, 1923 mSolverCounterSat, 994 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2597 SdHoareTripleChecker+Valid, 6093 SdHoareTripleChecker+Invalid, 2917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 994 IncrementalHoareTripleChecker+Valid, 1923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-17 07:57:44,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2597 Valid, 6093 Invalid, 2917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [994 Valid, 1923 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-17 07:57:44,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43080 states. [2021-11-17 07:57:46,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43080 to 40905. [2021-11-17 07:57:46,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40905 states, 27397 states have (on average 1.2226156148483411) internal successors, (33496), 28100 states have internal predecessors, (33496), 10528 states have call successors, (10528), 3028 states have call predecessors, (10528), 2977 states have return successors, (10590), 10352 states have call predecessors, (10590), 10524 states have call successors, (10590) [2021-11-17 07:57:46,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40905 states to 40905 states and 54614 transitions. [2021-11-17 07:57:46,499 INFO L78 Accepts]: Start accepts. Automaton has 40905 states and 54614 transitions. Word has length 212 [2021-11-17 07:57:46,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:57:46,499 INFO L470 AbstractCegarLoop]: Abstraction has 40905 states and 54614 transitions. [2021-11-17 07:57:46,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-17 07:57:46,500 INFO L276 IsEmpty]: Start isEmpty. Operand 40905 states and 54614 transitions. [2021-11-17 07:57:46,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-11-17 07:57:46,507 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:57:46,507 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 10, 9, 9, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:57:46,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-17 07:57:46,508 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:57:46,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:57:46,508 INFO L85 PathProgramCache]: Analyzing trace with hash -204945714, now seen corresponding path program 1 times [2021-11-17 07:57:46,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:57:46,508 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030332882] [2021-11-17 07:57:46,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:57:46,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:57:46,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:46,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:57:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:46,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:46,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:57:46,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:46,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:46,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:46,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:57:46,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:46,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:46,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:46,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:57:46,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:46,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:46,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:57:46,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:46,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:46,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:46,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:57:46,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:46,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:46,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:46,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:57:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:46,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:46,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:57:46,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:46,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:46,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:46,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 07:57:46,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:46,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 07:57:46,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:46,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 07:57:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:46,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 07:57:46,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:46,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 07:57:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:46,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:46,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:47,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:57:47,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:47,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 07:57:47,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:47,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 07:57:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:47,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 07:57:47,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:47,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 07:57:47,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:47,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 07:57:47,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:47,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-11-17 07:57:47,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:47,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-17 07:57:47,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:47,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 07:57:47,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:47,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 07:57:47,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:47,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 07:57:47,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:47,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-11-17 07:57:47,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:47,102 INFO L134 CoverageAnalysis]: Checked inductivity of 562 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-17 07:57:47,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:57:47,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030332882] [2021-11-17 07:57:47,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030332882] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:57:47,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:57:47,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:57:47,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352542760] [2021-11-17 07:57:47,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:57:47,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:57:47,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:57:47,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:57:47,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:57:47,107 INFO L87 Difference]: Start difference. First operand 40905 states and 54614 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-17 07:57:51,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:57:51,085 INFO L93 Difference]: Finished difference Result 43086 states and 57939 transitions. [2021-11-17 07:57:51,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:57:51,086 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 217 [2021-11-17 07:57:51,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:57:51,291 INFO L225 Difference]: With dead ends: 43086 [2021-11-17 07:57:51,291 INFO L226 Difference]: Without dead ends: 43084 [2021-11-17 07:57:51,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:57:51,327 INFO L933 BasicCegarLoop]: 2112 mSDtfsCounter, 2360 mSDsluCounter, 3977 mSDsCounter, 0 mSdLazyCounter, 1923 mSolverCounterSat, 993 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2598 SdHoareTripleChecker+Valid, 6089 SdHoareTripleChecker+Invalid, 2916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 993 IncrementalHoareTripleChecker+Valid, 1923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-17 07:57:51,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2598 Valid, 6089 Invalid, 2916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [993 Valid, 1923 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-17 07:57:51,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43084 states. [2021-11-17 07:57:53,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43084 to 40909. [2021-11-17 07:57:53,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40909 states, 27400 states have (on average 1.2225912408759123) internal successors, (33499), 28103 states have internal predecessors, (33499), 10528 states have call successors, (10528), 3029 states have call predecessors, (10528), 2978 states have return successors, (10590), 10352 states have call predecessors, (10590), 10524 states have call successors, (10590) [2021-11-17 07:57:53,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40909 states to 40909 states and 54617 transitions. [2021-11-17 07:57:53,273 INFO L78 Accepts]: Start accepts. Automaton has 40909 states and 54617 transitions. Word has length 217 [2021-11-17 07:57:53,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:57:53,274 INFO L470 AbstractCegarLoop]: Abstraction has 40909 states and 54617 transitions. [2021-11-17 07:57:53,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-17 07:57:53,274 INFO L276 IsEmpty]: Start isEmpty. Operand 40909 states and 54617 transitions. [2021-11-17 07:57:53,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-11-17 07:57:53,281 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:57:53,281 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 10, 10, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:57:53,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-17 07:57:53,282 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 07:57:53,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:57:53,282 INFO L85 PathProgramCache]: Analyzing trace with hash 333151351, now seen corresponding path program 1 times [2021-11-17 07:57:53,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:57:53,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345139196] [2021-11-17 07:57:53,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:57:53,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:57:53,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:57:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:57:53,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:53,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:57:53,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:53,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:57:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:53,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:57:53,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:53,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:57:53,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:57:53,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:53,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:57:53,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:53,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 07:57:53,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 07:57:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 07:57:53,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 07:57:53,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 07:57:53,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:57:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:57:53,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 07:57:53,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 07:57:53,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 07:57:53,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 07:57:53,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 07:57:53,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-11-17 07:57:53,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-17 07:57:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 07:57:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 07:57:53,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 07:57:53,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-11-17 07:57:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 07:57:53,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:57:53,601 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2021-11-17 07:57:53,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:57:53,601 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345139196] [2021-11-17 07:57:53,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345139196] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:57:53,602 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:57:53,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:57:53,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258739466] [2021-11-17 07:57:53,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:57:53,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:57:53,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:57:53,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:57:53,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:57:53,604 INFO L87 Difference]: Start difference. First operand 40909 states and 54617 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-17 07:57:57,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:57:57,843 INFO L93 Difference]: Finished difference Result 43090 states and 57942 transitions. [2021-11-17 07:57:57,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:57:57,844 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 222 [2021-11-17 07:57:57,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:57:58,026 INFO L225 Difference]: With dead ends: 43090 [2021-11-17 07:57:58,026 INFO L226 Difference]: Without dead ends: 43086 [2021-11-17 07:57:58,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:57:58,053 INFO L933 BasicCegarLoop]: 2113 mSDtfsCounter, 2360 mSDsluCounter, 3980 mSDsCounter, 0 mSdLazyCounter, 1923 mSolverCounterSat, 992 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2597 SdHoareTripleChecker+Valid, 6093 SdHoareTripleChecker+Invalid, 2915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 992 IncrementalHoareTripleChecker+Valid, 1923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-17 07:57:58,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2597 Valid, 6093 Invalid, 2915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [992 Valid, 1923 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-17 07:57:58,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43086 states. [2021-11-17 07:57:59,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43086 to 40911. [2021-11-17 07:57:59,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40911 states, 27402 states have (on average 1.2225385008393548) internal successors, (33500), 28104 states have internal predecessors, (33500), 10528 states have call successors, (10528), 3030 states have call predecessors, (10528), 2978 states have return successors, (10590), 10352 states have call predecessors, (10590), 10524 states have call successors, (10590) [2021-11-17 07:57:59,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40911 states to 40911 states and 54618 transitions. [2021-11-17 07:57:59,898 INFO L78 Accepts]: Start accepts. Automaton has 40911 states and 54618 transitions. Word has length 222 [2021-11-17 07:57:59,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:57:59,898 INFO L470 AbstractCegarLoop]: Abstraction has 40911 states and 54618 transitions. [2021-11-17 07:57:59,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-17 07:57:59,899 INFO L276 IsEmpty]: Start isEmpty. Operand 40911 states and 54618 transitions. [2021-11-17 07:57:59,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-11-17 07:57:59,905 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:57:59,906 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 12, 11, 11, 8, 8, 8, 8, 8, 8, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:57:59,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-17 07:57:59,906 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:57:59,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:57:59,907 INFO L85 PathProgramCache]: Analyzing trace with hash -632123141, now seen corresponding path program 1 times [2021-11-17 07:57:59,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:57:59,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526325461] [2021-11-17 07:57:59,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:57:59,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:58:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:58:00,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:58:00,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:58:00,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:58:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:58:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:58:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:58:00,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:58:00,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:58:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:58:00,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:58:00,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:58:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:58:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:58:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:58:00,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:58:00,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 07:58:00,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 07:58:00,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 07:58:00,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 07:58:00,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 07:58:00,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:58:00,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:58:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 07:58:00,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 07:58:00,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 07:58:00,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 07:58:00,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 07:58:00,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 07:58:00,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 07:58:00,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 07:58:00,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-11-17 07:58:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 07:58:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-17 07:58:00,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 07:58:00,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-17 07:58:00,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-17 07:58:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-17 07:58:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-17 07:58:00,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 07:58:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-11-17 07:58:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:58:00,362 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 730 trivial. 0 not checked. [2021-11-17 07:58:00,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:58:00,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526325461] [2021-11-17 07:58:00,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526325461] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:58:00,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:58:00,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 07:58:00,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611608010] [2021-11-17 07:58:00,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:58:00,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 07:58:00,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:58:00,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 07:58:00,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:58:00,365 INFO L87 Difference]: Start difference. First operand 40911 states and 54618 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (35), 4 states have call predecessors, (35), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-17 07:58:09,909 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []