./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-packetengines-hamachi.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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-packetengines-hamachi.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 141cc550f279b59aa80e553b6a405c5654c50ab0a30e94ad7616006c63d0c81e --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 13:51:51,652 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 13:51:51,653 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 13:51:51,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 13:51:51,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 13:51:51,694 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 13:51:51,697 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 13:51:51,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 13:51:51,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 13:51:51,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 13:51:51,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 13:51:51,709 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 13:51:51,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 13:51:51,711 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 13:51:51,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 13:51:51,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 13:51:51,719 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 13:51:51,720 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 13:51:51,722 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 13:51:51,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 13:51:51,728 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 13:51:51,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 13:51:51,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 13:51:51,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 13:51:51,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 13:51:51,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 13:51:51,741 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 13:51:51,741 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 13:51:51,742 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 13:51:51,743 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 13:51:51,743 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 13:51:51,744 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 13:51:51,745 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 13:51:51,746 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 13:51:51,747 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 13:51:51,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 13:51:51,748 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 13:51:51,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 13:51:51,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 13:51:51,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 13:51:51,750 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 13:51:51,751 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 13:51:51,755 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 13:51:51,793 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 13:51:51,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 13:51:51,794 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 13:51:51,794 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 13:51:51,795 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 13:51:51,795 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 13:51:51,796 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 13:51:51,796 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 13:51:51,796 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 13:51:51,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 13:51:51,797 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 13:51:51,798 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 13:51:51,798 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 13:51:51,798 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 13:51:51,798 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 13:51:51,798 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 13:51:51,806 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 13:51:51,806 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 13:51:51,806 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 13:51:51,806 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 13:51:51,807 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 13:51:51,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 13:51:51,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 13:51:51,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 13:51:51,807 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 13:51:51,808 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 13:51:51,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 13:51:51,808 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 13:51:51,808 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 13:51:51,808 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 13:51:51,809 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 141cc550f279b59aa80e553b6a405c5654c50ab0a30e94ad7616006c63d0c81e [2022-07-21 13:51:52,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 13:51:52,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 13:51:52,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 13:51:52,141 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 13:51:52,143 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 13:51:52,145 INFO L432 ainManager$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-packetengines-hamachi.cil.i [2022-07-21 13:51:52,212 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc902950e/fc9aef4c10874f609d94da29ca62f5a7/FLAG08829ac09 [2022-07-21 13:51:53,017 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 13:51:53,018 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-packetengines-hamachi.cil.i [2022-07-21 13:51:53,075 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc902950e/fc9aef4c10874f609d94da29ca62f5a7/FLAG08829ac09 [2022-07-21 13:51:53,558 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc902950e/fc9aef4c10874f609d94da29ca62f5a7 [2022-07-21 13:51:53,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 13:51:53,561 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 13:51:53,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 13:51:53,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 13:51:53,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 13:51:53,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:51:53" (1/1) ... [2022-07-21 13:51:53,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@133f96ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:53, skipping insertion in model container [2022-07-21 13:51:53,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:51:53" (1/1) ... [2022-07-21 13:51:53,575 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 13:51:53,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 13:51:55,891 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-packetengines-hamachi.cil.i[322818,322831] [2022-07-21 13:51:55,893 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-packetengines-hamachi.cil.i[322987,323000] [2022-07-21 13:51:55,893 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-packetengines-hamachi.cil.i[323154,323167] [2022-07-21 13:51:55,894 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-packetengines-hamachi.cil.i[323322,323335] [2022-07-21 13:51:55,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 13:51:56,015 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 13:51:56,357 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-packetengines-hamachi.cil.i[322818,322831] [2022-07-21 13:51:56,358 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-packetengines-hamachi.cil.i[322987,323000] [2022-07-21 13:51:56,358 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-packetengines-hamachi.cil.i[323154,323167] [2022-07-21 13:51:56,359 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-packetengines-hamachi.cil.i[323322,323335] [2022-07-21 13:51:56,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 13:51:56,601 INFO L208 MainTranslator]: Completed translation [2022-07-21 13:51:56,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:56 WrapperNode [2022-07-21 13:51:56,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 13:51:56,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 13:51:56,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 13:51:56,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 13:51:56,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:56" (1/1) ... [2022-07-21 13:51:56,706 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:56" (1/1) ... [2022-07-21 13:51:56,890 INFO L137 Inliner]: procedures = 412, calls = 1826, calls flagged for inlining = 207, calls inlined = 191, statements flattened = 4785 [2022-07-21 13:51:56,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 13:51:56,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 13:51:56,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 13:51:56,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 13:51:56,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:56" (1/1) ... [2022-07-21 13:51:56,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:56" (1/1) ... [2022-07-21 13:51:56,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:56" (1/1) ... [2022-07-21 13:51:56,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:56" (1/1) ... [2022-07-21 13:51:57,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:56" (1/1) ... [2022-07-21 13:51:57,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:56" (1/1) ... [2022-07-21 13:51:57,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:56" (1/1) ... [2022-07-21 13:51:57,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 13:51:57,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 13:51:57,282 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 13:51:57,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 13:51:57,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:56" (1/1) ... [2022-07-21 13:51:57,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 13:51:57,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 13:51:57,349 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) [2022-07-21 13:51:57,393 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 [2022-07-21 13:51:57,410 INFO L130 BoogieDeclarations]: Found specification of procedure check_if_running [2022-07-21 13:51:57,410 INFO L138 BoogieDeclarations]: Found implementation of procedure check_if_running [2022-07-21 13:51:57,410 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-21 13:51:57,410 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-21 13:51:57,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 13:51:57,410 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 13:51:57,410 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-21 13:51:57,410 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-21 13:51:57,410 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-21 13:51:57,410 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-21 13:51:57,411 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_close [2022-07-21 13:51:57,411 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_close [2022-07-21 13:51:57,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 13:51:57,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 13:51:57,411 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2022-07-21 13:51:57,411 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2022-07-21 13:51:57,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 13:51:57,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 13:51:57,411 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-21 13:51:57,411 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-21 13:51:57,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_hamachi_private [2022-07-21 13:51:57,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_hamachi_private [2022-07-21 13:51:57,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-21 13:51:57,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-21 13:51:57,412 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-21 13:51:57,412 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-21 13:51:57,412 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-21 13:51:57,412 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-21 13:51:57,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-21 13:51:57,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-21 13:51:57,412 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-21 13:51:57,412 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-21 13:51:57,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 13:51:57,413 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-21 13:51:57,413 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-21 13:51:57,413 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-21 13:51:57,413 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-21 13:51:57,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-21 13:51:57,413 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-21 13:51:57,413 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-21 13:51:57,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-21 13:51:57,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-21 13:51:57,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-21 13:51:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 13:51:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-07-21 13:51:57,414 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-07-21 13:51:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-21 13:51:57,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-21 13:51:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-21 13:51:57,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-21 13:51:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-21 13:51:57,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-21 13:51:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-21 13:51:57,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-21 13:51:57,415 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-07-21 13:51:57,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-07-21 13:51:57,415 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-21 13:51:57,416 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-21 13:51:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 13:51:57,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 13:51:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 13:51:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-21 13:51:57,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-21 13:51:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-21 13:51:57,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-21 13:51:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-07-21 13:51:57,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-07-21 13:51:57,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 13:51:57,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 13:51:57,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 13:51:57,418 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-21 13:51:57,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-21 13:51:57,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 13:51:57,418 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 13:51:57,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 13:51:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-21 13:51:57,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-21 13:51:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_hamachi_private [2022-07-21 13:51:57,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_hamachi_private [2022-07-21 13:51:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-07-21 13:51:57,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-07-21 13:51:57,420 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-21 13:51:57,420 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-21 13:51:57,420 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-21 13:51:57,420 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-21 13:51:57,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-21 13:51:57,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-21 13:51:57,421 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-21 13:51:57,421 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-21 13:51:57,421 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-07-21 13:51:57,421 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-07-21 13:51:57,421 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-07-21 13:51:57,421 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-07-21 13:51:57,421 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_nway_reset [2022-07-21 13:51:57,422 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_nway_reset [2022-07-21 13:51:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-07-21 13:51:57,422 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-07-21 13:51:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 13:51:57,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 13:51:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 13:51:57,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 13:51:57,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 13:51:57,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 13:51:57,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 13:51:57,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 13:51:57,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_hamachi_exit_15_2 [2022-07-21 13:51:57,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_hamachi_exit_15_2 [2022-07-21 13:51:57,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-21 13:51:57,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-21 13:51:57,424 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-21 13:51:57,424 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-21 13:51:57,424 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_open [2022-07-21 13:51:57,424 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_open [2022-07-21 13:51:57,425 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-21 13:51:57,425 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-21 13:51:57,425 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-21 13:51:57,425 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-21 13:51:57,425 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-21 13:51:57,425 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-21 13:51:57,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 13:51:57,426 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-21 13:51:57,426 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-21 13:51:57,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 13:51:57,426 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-21 13:51:57,426 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-21 13:51:57,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 13:51:57,427 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-21 13:51:57,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-21 13:51:57,427 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-21 13:51:57,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-21 13:51:57,427 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-21 13:51:57,427 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-21 13:51:57,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_68 [2022-07-21 13:51:57,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_68 [2022-07-21 13:51:57,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-21 13:51:57,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-21 13:51:57,428 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-21 13:51:57,428 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-21 13:51:57,428 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-21 13:51:57,429 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-21 13:51:57,429 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-21 13:51:57,429 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-21 13:51:57,429 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_remove_one [2022-07-21 13:51:57,429 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_remove_one [2022-07-21 13:51:57,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 13:51:57,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 13:51:57,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 13:51:57,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_69 [2022-07-21 13:51:57,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_69 [2022-07-21 13:51:57,430 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_get_stats [2022-07-21 13:51:57,430 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_get_stats [2022-07-21 13:51:57,430 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_tx_timeout [2022-07-21 13:51:57,430 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_tx_timeout [2022-07-21 13:51:57,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-21 13:51:57,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-21 13:51:57,431 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-07-21 13:51:57,431 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-07-21 13:51:57,431 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-21 13:51:57,431 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-21 13:51:57,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 13:51:57,432 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_timer [2022-07-21 13:51:57,432 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_timer [2022-07-21 13:51:57,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-21 13:51:57,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-21 13:51:57,432 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-07-21 13:51:57,432 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-07-21 13:51:58,201 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 13:51:58,203 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 13:51:58,337 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 13:52:00,589 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-21 13:52:00,639 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 13:52:00,662 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 13:52:00,663 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 13:52:00,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:52:00 BoogieIcfgContainer [2022-07-21 13:52:00,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 13:52:00,669 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 13:52:00,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 13:52:00,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 13:52:00,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:51:53" (1/3) ... [2022-07-21 13:52:00,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63207389 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:52:00, skipping insertion in model container [2022-07-21 13:52:00,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:56" (2/3) ... [2022-07-21 13:52:00,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63207389 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:52:00, skipping insertion in model container [2022-07-21 13:52:00,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:52:00" (3/3) ... [2022-07-21 13:52:00,674 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2022-07-21 13:52:00,687 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 13:52:00,687 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-21 13:52:00,831 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 13:52:00,836 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1f0945d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@46f87aff [2022-07-21 13:52:00,836 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-21 13:52:00,847 INFO L276 IsEmpty]: Start isEmpty. Operand has 1643 states, 1169 states have (on average 1.3267750213857998) internal successors, (1551), 1196 states have internal predecessors, (1551), 397 states have call successors, (397), 75 states have call predecessors, (397), 74 states have return successors, (390), 377 states have call predecessors, (390), 390 states have call successors, (390) [2022-07-21 13:52:00,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-07-21 13:52:00,866 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:52:00,867 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:52:00,867 INFO L420 AbstractCegarLoop]: === Iteration 1 === 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)] === [2022-07-21 13:52:00,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:52:00,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1951327462, now seen corresponding path program 1 times [2022-07-21 13:52:00,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:52:00,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684581071] [2022-07-21 13:52:00,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:52:00,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:52:01,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:01,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:52:01,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:01,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:01,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:01,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:52:01,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:01,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:01,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:52:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:01,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:01,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:52:01,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:01,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:01,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:01,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:52:01,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:01,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:01,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:01,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:52:01,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:01,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:01,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:01,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:52:01,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:01,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:01,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:52:01,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:01,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:01,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:01,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 13:52:01,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:01,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:01,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:01,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 13:52:01,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:01,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 13:52:01,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:01,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-21 13:52:01,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:01,757 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-21 13:52:01,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:52:01,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684581071] [2022-07-21 13:52:01,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684581071] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:52:01,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:52:01,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 13:52:01,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783462536] [2022-07-21 13:52:01,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:52:01,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 13:52:01,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:52:01,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 13:52:01,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 13:52:01,802 INFO L87 Difference]: Start difference. First operand has 1643 states, 1169 states have (on average 1.3267750213857998) internal successors, (1551), 1196 states have internal predecessors, (1551), 397 states have call successors, (397), 75 states have call predecessors, (397), 74 states have return successors, (390), 377 states have call predecessors, (390), 390 states have call successors, (390) Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-21 13:52:05,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:52:05,054 INFO L93 Difference]: Finished difference Result 4635 states and 6726 transitions. [2022-07-21 13:52:05,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 13:52:05,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 129 [2022-07-21 13:52:05,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:52:05,090 INFO L225 Difference]: With dead ends: 4635 [2022-07-21 13:52:05,090 INFO L226 Difference]: Without dead ends: 2999 [2022-07-21 13:52:05,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:52:05,105 INFO L413 NwaCegarLoop]: 2453 mSDtfsCounter, 2473 mSDsluCounter, 2341 mSDsCounter, 0 mSdLazyCounter, 1664 mSolverCounterSat, 1113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2783 SdHoareTripleChecker+Valid, 4794 SdHoareTripleChecker+Invalid, 2777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1113 IncrementalHoareTripleChecker+Valid, 1664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-21 13:52:05,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2783 Valid, 4794 Invalid, 2777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1113 Valid, 1664 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-21 13:52:05,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2999 states. [2022-07-21 13:52:05,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2999 to 2939. [2022-07-21 13:52:05,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2939 states, 2086 states have (on average 1.2780441035474592) internal successors, (2666), 2144 states have internal predecessors, (2666), 703 states have call successors, (703), 142 states have call predecessors, (703), 147 states have return successors, (725), 670 states have call predecessors, (725), 699 states have call successors, (725) [2022-07-21 13:52:05,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2939 states to 2939 states and 4094 transitions. [2022-07-21 13:52:05,332 INFO L78 Accepts]: Start accepts. Automaton has 2939 states and 4094 transitions. Word has length 129 [2022-07-21 13:52:05,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:52:05,333 INFO L495 AbstractCegarLoop]: Abstraction has 2939 states and 4094 transitions. [2022-07-21 13:52:05,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-21 13:52:05,334 INFO L276 IsEmpty]: Start isEmpty. Operand 2939 states and 4094 transitions. [2022-07-21 13:52:05,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-07-21 13:52:05,340 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:52:05,340 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:52:05,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 13:52:05,341 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:52:05,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:52:05,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1004302406, now seen corresponding path program 1 times [2022-07-21 13:52:05,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:52:05,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455680557] [2022-07-21 13:52:05,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:52:05,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:52:05,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:05,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:52:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:05,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:05,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:05,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:52:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:05,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:05,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:05,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:52:05,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:05,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:05,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:05,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:52:05,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:05,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:05,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:05,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:52:05,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:05,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:05,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:05,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:52:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:05,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:05,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:05,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:52:05,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:05,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:05,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:05,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:52:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:05,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:05,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 13:52:05,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:05,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:05,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 13:52:05,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:05,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-21 13:52:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:05,631 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-21 13:52:05,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:52:05,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455680557] [2022-07-21 13:52:05,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455680557] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:52:05,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:52:05,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 13:52:05,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586103612] [2022-07-21 13:52:05,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:52:05,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 13:52:05,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:52:05,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 13:52:05,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 13:52:05,638 INFO L87 Difference]: Start difference. First operand 2939 states and 4094 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-21 13:52:08,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:52:08,723 INFO L93 Difference]: Finished difference Result 8694 states and 12136 transitions. [2022-07-21 13:52:08,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 13:52:08,724 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 129 [2022-07-21 13:52:08,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:52:08,768 INFO L225 Difference]: With dead ends: 8694 [2022-07-21 13:52:08,768 INFO L226 Difference]: Without dead ends: 5778 [2022-07-21 13:52:08,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:52:08,788 INFO L413 NwaCegarLoop]: 2380 mSDtfsCounter, 2752 mSDsluCounter, 2256 mSDsCounter, 0 mSdLazyCounter, 1748 mSolverCounterSat, 1120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3104 SdHoareTripleChecker+Valid, 4636 SdHoareTripleChecker+Invalid, 2868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1120 IncrementalHoareTripleChecker+Valid, 1748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-21 13:52:08,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3104 Valid, 4636 Invalid, 2868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1120 Valid, 1748 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-21 13:52:08,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5778 states. [2022-07-21 13:52:09,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5778 to 5708. [2022-07-21 13:52:09,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5708 states, 4070 states have (on average 1.278869778869779) internal successors, (5205), 4178 states have internal predecessors, (5205), 1344 states have call successors, (1344), 280 states have call predecessors, (1344), 291 states have return successors, (1392), 1285 states have call predecessors, (1392), 1340 states have call successors, (1392) [2022-07-21 13:52:09,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5708 states to 5708 states and 7941 transitions. [2022-07-21 13:52:09,116 INFO L78 Accepts]: Start accepts. Automaton has 5708 states and 7941 transitions. Word has length 129 [2022-07-21 13:52:09,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:52:09,119 INFO L495 AbstractCegarLoop]: Abstraction has 5708 states and 7941 transitions. [2022-07-21 13:52:09,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-21 13:52:09,120 INFO L276 IsEmpty]: Start isEmpty. Operand 5708 states and 7941 transitions. [2022-07-21 13:52:09,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-21 13:52:09,126 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:52:09,126 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:52:09,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 13:52:09,127 INFO L420 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)] === [2022-07-21 13:52:09,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:52:09,127 INFO L85 PathProgramCache]: Analyzing trace with hash 671909059, now seen corresponding path program 1 times [2022-07-21 13:52:09,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:52:09,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022499827] [2022-07-21 13:52:09,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:52:09,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:52:09,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:09,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:52:09,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:09,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:09,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:09,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:52:09,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:09,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:09,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:52:09,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:09,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:09,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:52:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:09,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:09,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:09,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:52:09,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:09,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:09,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:52:09,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:09,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:09,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:52:09,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:09,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:09,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:52:09,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:09,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:09,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:09,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 13:52:09,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:09,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:09,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:09,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 13:52:09,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:09,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 13:52:09,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:09,474 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-21 13:52:09,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:52:09,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022499827] [2022-07-21 13:52:09,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022499827] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:52:09,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:52:09,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 13:52:09,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152444461] [2022-07-21 13:52:09,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:52:09,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 13:52:09,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:52:09,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 13:52:09,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 13:52:09,480 INFO L87 Difference]: Start difference. First operand 5708 states and 7941 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-21 13:52:12,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:52:12,690 INFO L93 Difference]: Finished difference Result 16228 states and 22630 transitions. [2022-07-21 13:52:12,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 13:52:12,691 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 134 [2022-07-21 13:52:12,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:52:12,758 INFO L225 Difference]: With dead ends: 16228 [2022-07-21 13:52:12,758 INFO L226 Difference]: Without dead ends: 10543 [2022-07-21 13:52:12,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:52:12,787 INFO L413 NwaCegarLoop]: 2359 mSDtfsCounter, 2495 mSDsluCounter, 2249 mSDsCounter, 0 mSdLazyCounter, 1745 mSolverCounterSat, 1138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2817 SdHoareTripleChecker+Valid, 4608 SdHoareTripleChecker+Invalid, 2883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1138 IncrementalHoareTripleChecker+Valid, 1745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-21 13:52:12,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2817 Valid, 4608 Invalid, 2883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1138 Valid, 1745 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-21 13:52:12,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10543 states. [2022-07-21 13:52:13,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10543 to 10326. [2022-07-21 13:52:13,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10326 states, 7326 states have (on average 1.27996177996178) internal successors, (9377), 7528 states have internal predecessors, (9377), 2452 states have call successors, (2452), 532 states have call predecessors, (2452), 545 states have return successors, (2530), 2329 states have call predecessors, (2530), 2448 states have call successors, (2530) [2022-07-21 13:52:13,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10326 states to 10326 states and 14359 transitions. [2022-07-21 13:52:13,256 INFO L78 Accepts]: Start accepts. Automaton has 10326 states and 14359 transitions. Word has length 134 [2022-07-21 13:52:13,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:52:13,259 INFO L495 AbstractCegarLoop]: Abstraction has 10326 states and 14359 transitions. [2022-07-21 13:52:13,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-21 13:52:13,260 INFO L276 IsEmpty]: Start isEmpty. Operand 10326 states and 14359 transitions. [2022-07-21 13:52:13,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-21 13:52:13,267 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:52:13,267 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:52:13,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 13:52:13,268 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:52:13,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:52:13,268 INFO L85 PathProgramCache]: Analyzing trace with hash 298418147, now seen corresponding path program 1 times [2022-07-21 13:52:13,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:52:13,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291088105] [2022-07-21 13:52:13,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:52:13,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:52:13,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:13,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:52:13,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:13,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:13,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:13,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:52:13,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:13,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:13,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:13,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:52:13,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:13,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:13,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:13,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:52:13,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:13,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:13,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:13,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:52:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:13,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:13,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:13,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:52:13,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:13,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:13,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:13,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:52:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:13,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:13,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:13,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:52:13,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:13,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:13,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:13,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 13:52:13,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:13,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:13,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:13,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 13:52:13,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:13,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:52:13,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:13,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 13:52:13,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:13,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-21 13:52:13,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:13,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 13:52:13,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:13,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:13,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:13,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-21 13:52:13,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:13,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 13:52:13,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:13,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-21 13:52:13,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:13,652 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2022-07-21 13:52:13,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:52:13,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291088105] [2022-07-21 13:52:13,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291088105] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:52:13,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:52:13,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 13:52:13,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303745958] [2022-07-21 13:52:13,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:52:13,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 13:52:13,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:52:13,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 13:52:13,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 13:52:13,656 INFO L87 Difference]: Start difference. First operand 10326 states and 14359 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-21 13:52:16,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:52:16,743 INFO L93 Difference]: Finished difference Result 20956 states and 29202 transitions. [2022-07-21 13:52:16,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 13:52:16,744 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 187 [2022-07-21 13:52:16,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:52:16,847 INFO L225 Difference]: With dead ends: 20956 [2022-07-21 13:52:16,848 INFO L226 Difference]: Without dead ends: 15622 [2022-07-21 13:52:16,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:52:16,881 INFO L413 NwaCegarLoop]: 4113 mSDtfsCounter, 2219 mSDsluCounter, 3161 mSDsCounter, 0 mSdLazyCounter, 1771 mSolverCounterSat, 768 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2568 SdHoareTripleChecker+Valid, 7274 SdHoareTripleChecker+Invalid, 2539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 768 IncrementalHoareTripleChecker+Valid, 1771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-21 13:52:16,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2568 Valid, 7274 Invalid, 2539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [768 Valid, 1771 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-21 13:52:16,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15622 states. [2022-07-21 13:52:17,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15622 to 15339. [2022-07-21 13:52:17,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15339 states, 10893 states have (on average 1.2801799320664646) internal successors, (13945), 11189 states have internal predecessors, (13945), 3628 states have call successors, (3628), 795 states have call predecessors, (3628), 815 states have return successors, (3747), 3450 states have call predecessors, (3747), 3624 states have call successors, (3747) [2022-07-21 13:52:17,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15339 states to 15339 states and 21320 transitions. [2022-07-21 13:52:17,510 INFO L78 Accepts]: Start accepts. Automaton has 15339 states and 21320 transitions. Word has length 187 [2022-07-21 13:52:17,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:52:17,512 INFO L495 AbstractCegarLoop]: Abstraction has 15339 states and 21320 transitions. [2022-07-21 13:52:17,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-21 13:52:17,513 INFO L276 IsEmpty]: Start isEmpty. Operand 15339 states and 21320 transitions. [2022-07-21 13:52:17,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-21 13:52:17,519 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:52:17,519 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:52:17,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 13:52:17,520 INFO L420 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)] === [2022-07-21 13:52:17,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:52:17,520 INFO L85 PathProgramCache]: Analyzing trace with hash -2073321115, now seen corresponding path program 1 times [2022-07-21 13:52:17,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:52:17,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236530595] [2022-07-21 13:52:17,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:52:17,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:52:17,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:17,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:52:17,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:17,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:17,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:17,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:52:17,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:17,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:17,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:17,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:52:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:17,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:17,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:17,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:52:17,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:17,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:17,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:17,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:52:17,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:17,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:17,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:17,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:52:17,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:17,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:17,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:17,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:52:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:17,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:17,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:52:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:17,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:17,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:17,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 13:52:17,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:17,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:17,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 13:52:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:17,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:52:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:17,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 13:52:17,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:17,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-21 13:52:17,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:17,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 13:52:17,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:17,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:17,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:17,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-21 13:52:17,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:17,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 13:52:17,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:17,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-21 13:52:17,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:17,954 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2022-07-21 13:52:17,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:52:17,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236530595] [2022-07-21 13:52:17,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236530595] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:52:17,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:52:17,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:52:17,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263187851] [2022-07-21 13:52:17,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:52:17,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:52:17,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:52:17,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:52:17,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:52:17,956 INFO L87 Difference]: Start difference. First operand 15339 states and 21320 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) [2022-07-21 13:52:20,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:52:20,670 INFO L93 Difference]: Finished difference Result 15624 states and 21775 transitions. [2022-07-21 13:52:20,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:52:20,671 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 187 [2022-07-21 13:52:20,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:52:20,746 INFO L225 Difference]: With dead ends: 15624 [2022-07-21 13:52:20,746 INFO L226 Difference]: Without dead ends: 15622 [2022-07-21 13:52:20,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:52:20,763 INFO L413 NwaCegarLoop]: 2129 mSDtfsCounter, 2301 mSDsluCounter, 3630 mSDsCounter, 0 mSdLazyCounter, 2294 mSolverCounterSat, 794 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2533 SdHoareTripleChecker+Valid, 5759 SdHoareTripleChecker+Invalid, 3088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 794 IncrementalHoareTripleChecker+Valid, 2294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-21 13:52:20,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2533 Valid, 5759 Invalid, 3088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [794 Valid, 2294 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-21 13:52:20,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15622 states. [2022-07-21 13:52:21,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15622 to 15343. [2022-07-21 13:52:21,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15343 states, 10896 states have (on average 1.2801027900146842) internal successors, (13948), 11192 states have internal predecessors, (13948), 3628 states have call successors, (3628), 796 states have call predecessors, (3628), 816 states have return successors, (3747), 3450 states have call predecessors, (3747), 3624 states have call successors, (3747) [2022-07-21 13:52:21,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15343 states to 15343 states and 21323 transitions. [2022-07-21 13:52:21,434 INFO L78 Accepts]: Start accepts. Automaton has 15343 states and 21323 transitions. Word has length 187 [2022-07-21 13:52:21,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:52:21,435 INFO L495 AbstractCegarLoop]: Abstraction has 15343 states and 21323 transitions. [2022-07-21 13:52:21,436 INFO L496 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) [2022-07-21 13:52:21,436 INFO L276 IsEmpty]: Start isEmpty. Operand 15343 states and 21323 transitions. [2022-07-21 13:52:21,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-07-21 13:52:21,444 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:52:21,444 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:52:21,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 13:52:21,445 INFO L420 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)] === [2022-07-21 13:52:21,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:52:21,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1429998640, now seen corresponding path program 1 times [2022-07-21 13:52:21,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:52:21,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509298328] [2022-07-21 13:52:21,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:52:21,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:52:21,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:21,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:52:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:21,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:21,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:21,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:52:21,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:21,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:21,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:52:21,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:21,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:21,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:21,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:52:21,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:21,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:21,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:21,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:52:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:21,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:21,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:21,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:52:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:21,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:21,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:21,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:52:21,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:21,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:21,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:21,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:52:21,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:21,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:21,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:21,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 13:52:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:21,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:21,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:21,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 13:52:21,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:21,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:52:21,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:21,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 13:52:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:21,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-21 13:52:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:21,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 13:52:21,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:21,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:21,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-21 13:52:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:21,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 13:52:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:21,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-21 13:52:21,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:21,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 13:52:21,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:21,833 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2022-07-21 13:52:21,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:52:21,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509298328] [2022-07-21 13:52:21,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509298328] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:52:21,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:52:21,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:52:21,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298016585] [2022-07-21 13:52:21,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:52:21,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:52:21,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:52:21,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:52:21,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:52:21,837 INFO L87 Difference]: Start difference. First operand 15343 states and 21323 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-21 13:52:24,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:52:24,089 INFO L93 Difference]: Finished difference Result 15628 states and 21778 transitions. [2022-07-21 13:52:24,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:52:24,091 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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 192 [2022-07-21 13:52:24,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:52:24,285 INFO L225 Difference]: With dead ends: 15628 [2022-07-21 13:52:24,286 INFO L226 Difference]: Without dead ends: 15626 [2022-07-21 13:52:24,295 INFO L412 NwaCegarLoop]: 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 [2022-07-21 13:52:24,296 INFO L413 NwaCegarLoop]: 2131 mSDtfsCounter, 2293 mSDsluCounter, 3627 mSDsCounter, 0 mSdLazyCounter, 2294 mSolverCounterSat, 793 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2526 SdHoareTripleChecker+Valid, 5758 SdHoareTripleChecker+Invalid, 3087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 793 IncrementalHoareTripleChecker+Valid, 2294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-21 13:52:24,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2526 Valid, 5758 Invalid, 3087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [793 Valid, 2294 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-21 13:52:24,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15626 states. [2022-07-21 13:52:24,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15626 to 15347. [2022-07-21 13:52:24,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15347 states, 10899 states have (on average 1.2800256904303147) internal successors, (13951), 11195 states have internal predecessors, (13951), 3628 states have call successors, (3628), 797 states have call predecessors, (3628), 817 states have return successors, (3747), 3450 states have call predecessors, (3747), 3624 states have call successors, (3747) [2022-07-21 13:52:24,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15347 states to 15347 states and 21326 transitions. [2022-07-21 13:52:24,831 INFO L78 Accepts]: Start accepts. Automaton has 15347 states and 21326 transitions. Word has length 192 [2022-07-21 13:52:24,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:52:24,832 INFO L495 AbstractCegarLoop]: Abstraction has 15347 states and 21326 transitions. [2022-07-21 13:52:24,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-21 13:52:24,832 INFO L276 IsEmpty]: Start isEmpty. Operand 15347 states and 21326 transitions. [2022-07-21 13:52:24,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-07-21 13:52:24,840 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:52:24,841 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:52:24,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 13:52:24,841 INFO L420 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)] === [2022-07-21 13:52:24,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:52:24,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1847429142, now seen corresponding path program 1 times [2022-07-21 13:52:24,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:52:24,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458015995] [2022-07-21 13:52:24,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:52:24,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:52:24,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:24,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:52:24,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:24,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:24,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:52:24,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:24,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:24,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:24,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:52:24,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:24,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:24,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:24,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:52:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:25,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:25,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:52:25,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:25,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:25,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:25,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:52:25,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:25,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:25,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:25,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:52:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:25,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:25,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:52:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:25,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:25,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 13:52:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:25,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:25,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 13:52:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:25,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:52:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:25,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 13:52:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:25,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-21 13:52:25,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:25,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 13:52:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:25,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:25,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-21 13:52:25,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:25,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 13:52:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:25,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-21 13:52:25,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:25,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 13:52:25,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:25,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:52:25,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:25,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 13:52:25,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:25,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-21 13:52:25,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:25,124 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2022-07-21 13:52:25,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:52:25,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458015995] [2022-07-21 13:52:25,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458015995] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:52:25,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:52:25,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 13:52:25,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760683804] [2022-07-21 13:52:25,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:52:25,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:52:25,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:52:25,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:52:25,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:52:25,127 INFO L87 Difference]: Start difference. First operand 15347 states and 21326 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, (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) [2022-07-21 13:52:29,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:52:29,798 INFO L93 Difference]: Finished difference Result 31121 states and 43325 transitions. [2022-07-21 13:52:29,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 13:52:29,798 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 3 states have internal predecessors, (72), 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 207 [2022-07-21 13:52:29,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:52:29,897 INFO L225 Difference]: With dead ends: 31121 [2022-07-21 13:52:29,898 INFO L226 Difference]: Without dead ends: 20766 [2022-07-21 13:52:29,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 13:52:29,952 INFO L413 NwaCegarLoop]: 3994 mSDtfsCounter, 2786 mSDsluCounter, 4183 mSDsCounter, 0 mSdLazyCounter, 2941 mSolverCounterSat, 1825 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3027 SdHoareTripleChecker+Valid, 8177 SdHoareTripleChecker+Invalid, 4766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1825 IncrementalHoareTripleChecker+Valid, 2941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-07-21 13:52:29,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3027 Valid, 8177 Invalid, 4766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1825 Valid, 2941 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-07-21 13:52:29,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20766 states. [2022-07-21 13:52:30,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20766 to 20364. [2022-07-21 13:52:30,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20364 states, 14470 states have (on average 1.2800967519004838) internal successors, (18523), 14860 states have internal predecessors, (18523), 4804 states have call successors, (4804), 1060 states have call predecessors, (4804), 1087 states have return successors, (4964), 4571 states have call predecessors, (4964), 4800 states have call successors, (4964) [2022-07-21 13:52:30,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20364 states to 20364 states and 28291 transitions. [2022-07-21 13:52:30,909 INFO L78 Accepts]: Start accepts. Automaton has 20364 states and 28291 transitions. Word has length 207 [2022-07-21 13:52:30,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:52:30,910 INFO L495 AbstractCegarLoop]: Abstraction has 20364 states and 28291 transitions. [2022-07-21 13:52:30,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 3 states have internal predecessors, (72), 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) [2022-07-21 13:52:30,910 INFO L276 IsEmpty]: Start isEmpty. Operand 20364 states and 28291 transitions. [2022-07-21 13:52:30,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-07-21 13:52:30,919 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:52:30,920 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-21 13:52:30,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 13:52:30,920 INFO L420 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)] === [2022-07-21 13:52:30,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:52:30,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1602388997, now seen corresponding path program 1 times [2022-07-21 13:52:30,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:52:30,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740172540] [2022-07-21 13:52:30,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:52:30,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:52:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:31,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:52:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:31,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:31,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:31,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:52:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:31,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:31,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:31,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:52:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:31,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:31,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:52:31,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:31,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:31,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:31,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:52:31,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:31,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:31,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:52:31,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:31,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:31,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:31,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:52:31,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:31,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:31,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:52:31,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:31,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:31,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:31,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 13:52:31,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:31,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:31,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:31,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 13:52:31,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:31,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:52:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:31,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 13:52:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:31,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-21 13:52:31,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:31,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 13:52:31,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:31,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:31,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:31,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-21 13:52:31,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:31,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 13:52:31,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:31,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-21 13:52:31,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:31,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 13:52:31,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:31,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 13:52:31,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:31,457 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2022-07-21 13:52:31,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:52:31,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740172540] [2022-07-21 13:52:31,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740172540] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:52:31,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:52:31,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:52:31,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762769509] [2022-07-21 13:52:31,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:52:31,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:52:31,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:52:31,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:52:31,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:52:31,460 INFO L87 Difference]: Start difference. First operand 20364 states and 28291 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-21 13:52:34,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:52:34,090 INFO L93 Difference]: Finished difference Result 20742 states and 28893 transitions. [2022-07-21 13:52:34,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:52:34,091 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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 197 [2022-07-21 13:52:34,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:52:34,187 INFO L225 Difference]: With dead ends: 20742 [2022-07-21 13:52:34,187 INFO L226 Difference]: Without dead ends: 20740 [2022-07-21 13:52:34,208 INFO L412 NwaCegarLoop]: 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 [2022-07-21 13:52:34,209 INFO L413 NwaCegarLoop]: 2136 mSDtfsCounter, 2291 mSDsluCounter, 3640 mSDsCounter, 0 mSdLazyCounter, 2297 mSolverCounterSat, 791 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2521 SdHoareTripleChecker+Valid, 5776 SdHoareTripleChecker+Invalid, 3088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 791 IncrementalHoareTripleChecker+Valid, 2297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:52:34,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2521 Valid, 5776 Invalid, 3088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [791 Valid, 2297 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-21 13:52:34,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20740 states. [2022-07-21 13:52:35,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20740 to 20368. [2022-07-21 13:52:35,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20368 states, 14473 states have (on average 1.2800386927382021) internal successors, (18526), 14863 states have internal predecessors, (18526), 4804 states have call successors, (4804), 1061 states have call predecessors, (4804), 1088 states have return successors, (4964), 4571 states have call predecessors, (4964), 4800 states have call successors, (4964) [2022-07-21 13:52:35,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20368 states to 20368 states and 28294 transitions. [2022-07-21 13:52:35,205 INFO L78 Accepts]: Start accepts. Automaton has 20368 states and 28294 transitions. Word has length 197 [2022-07-21 13:52:35,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:52:35,206 INFO L495 AbstractCegarLoop]: Abstraction has 20368 states and 28294 transitions. [2022-07-21 13:52:35,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-21 13:52:35,206 INFO L276 IsEmpty]: Start isEmpty. Operand 20368 states and 28294 transitions. [2022-07-21 13:52:35,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-07-21 13:52:35,216 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:52:35,216 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:52:35,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 13:52:35,217 INFO L420 AbstractCegarLoop]: === Iteration 9 === 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)] === [2022-07-21 13:52:35,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:52:35,217 INFO L85 PathProgramCache]: Analyzing trace with hash 269118704, now seen corresponding path program 1 times [2022-07-21 13:52:35,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:52:35,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34912737] [2022-07-21 13:52:35,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:52:35,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:52:35,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:35,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:52:35,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:35,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:35,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:35,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:52:35,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:35,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:35,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:52:35,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:35,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:35,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:35,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:52:35,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:35,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:35,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:35,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:52:35,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:35,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:35,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:35,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:52:35,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:35,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:35,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:35,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:52:35,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:35,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:35,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:35,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:52:35,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:35,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:35,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 13:52:35,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:35,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:35,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:35,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 13:52:35,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:35,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-21 13:52:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:35,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 13:52:35,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:35,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:35,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:35,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 13:52:35,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:35,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:52:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:35,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 13:52:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:35,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-21 13:52:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:35,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-21 13:52:35,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:35,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-21 13:52:35,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:35,578 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2022-07-21 13:52:35,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:52:35,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34912737] [2022-07-21 13:52:35,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34912737] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:52:35,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:52:35,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:52:35,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502163215] [2022-07-21 13:52:35,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:52:35,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:52:35,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:52:35,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:52:35,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:52:35,581 INFO L87 Difference]: Start difference. First operand 20368 states and 28294 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-21 13:52:42,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:52:42,535 INFO L93 Difference]: Finished difference Result 43793 states and 60688 transitions. [2022-07-21 13:52:42,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:52:42,536 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 194 [2022-07-21 13:52:42,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:52:42,628 INFO L225 Difference]: With dead ends: 43793 [2022-07-21 13:52:42,629 INFO L226 Difference]: Without dead ends: 23448 [2022-07-21 13:52:42,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-21 13:52:42,684 INFO L413 NwaCegarLoop]: 2629 mSDtfsCounter, 1703 mSDsluCounter, 3943 mSDsCounter, 0 mSdLazyCounter, 3500 mSolverCounterSat, 847 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1954 SdHoareTripleChecker+Valid, 6572 SdHoareTripleChecker+Invalid, 4347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 847 IncrementalHoareTripleChecker+Valid, 3500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-07-21 13:52:42,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1954 Valid, 6572 Invalid, 4347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [847 Valid, 3500 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-07-21 13:52:42,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23448 states. [2022-07-21 13:52:43,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23448 to 22772. [2022-07-21 13:52:43,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22772 states, 16414 states have (on average 1.2737297429024004) internal successors, (20907), 16795 states have internal predecessors, (20907), 5092 states have call successors, (5092), 1247 states have call predecessors, (5092), 1263 states have return successors, (5211), 4858 states have call predecessors, (5211), 5088 states have call successors, (5211) [2022-07-21 13:52:43,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22772 states to 22772 states and 31210 transitions. [2022-07-21 13:52:43,853 INFO L78 Accepts]: Start accepts. Automaton has 22772 states and 31210 transitions. Word has length 194 [2022-07-21 13:52:43,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:52:43,854 INFO L495 AbstractCegarLoop]: Abstraction has 22772 states and 31210 transitions. [2022-07-21 13:52:43,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-21 13:52:43,854 INFO L276 IsEmpty]: Start isEmpty. Operand 22772 states and 31210 transitions. [2022-07-21 13:52:43,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-07-21 13:52:43,861 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:52:43,861 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:52:43,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 13:52:43,862 INFO L420 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)] === [2022-07-21 13:52:43,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:52:43,862 INFO L85 PathProgramCache]: Analyzing trace with hash 99345584, now seen corresponding path program 1 times [2022-07-21 13:52:43,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:52:43,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325242650] [2022-07-21 13:52:43,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:52:43,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:52:43,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:52:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:44,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:52:44,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:52:44,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:52:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:44,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:52:44,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:44,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:52:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:44,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:52:44,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:52:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:44,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 13:52:44,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:44,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 13:52:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:52:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 13:52:44,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-21 13:52:44,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 13:52:44,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-21 13:52:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 13:52:44,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-21 13:52:44,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 13:52:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 13:52:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 13:52:44,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:44,191 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2022-07-21 13:52:44,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:52:44,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325242650] [2022-07-21 13:52:44,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325242650] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:52:44,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:52:44,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:52:44,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110469516] [2022-07-21 13:52:44,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:52:44,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:52:44,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:52:44,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:52:44,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:52:44,194 INFO L87 Difference]: Start difference. First operand 22772 states and 31210 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-21 13:52:46,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:52:46,949 INFO L93 Difference]: Finished difference Result 23270 states and 31983 transitions. [2022-07-21 13:52:46,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:52:46,949 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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 202 [2022-07-21 13:52:46,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:52:47,023 INFO L225 Difference]: With dead ends: 23270 [2022-07-21 13:52:47,023 INFO L226 Difference]: Without dead ends: 23268 [2022-07-21 13:52:47,037 INFO L412 NwaCegarLoop]: 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 [2022-07-21 13:52:47,038 INFO L413 NwaCegarLoop]: 2133 mSDtfsCounter, 2291 mSDsluCounter, 3631 mSDsCounter, 0 mSdLazyCounter, 2297 mSolverCounterSat, 790 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2524 SdHoareTripleChecker+Valid, 5764 SdHoareTripleChecker+Invalid, 3087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 790 IncrementalHoareTripleChecker+Valid, 2297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-21 13:52:47,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2524 Valid, 5764 Invalid, 3087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [790 Valid, 2297 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-21 13:52:47,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23268 states. [2022-07-21 13:52:47,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23268 to 22776. [2022-07-21 13:52:47,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22776 states, 16417 states have (on average 1.2736797222391423) internal successors, (20910), 16798 states have internal predecessors, (20910), 5092 states have call successors, (5092), 1248 states have call predecessors, (5092), 1264 states have return successors, (5211), 4858 states have call predecessors, (5211), 5088 states have call successors, (5211) [2022-07-21 13:52:47,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22776 states to 22776 states and 31213 transitions. [2022-07-21 13:52:47,962 INFO L78 Accepts]: Start accepts. Automaton has 22776 states and 31213 transitions. Word has length 202 [2022-07-21 13:52:47,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:52:47,963 INFO L495 AbstractCegarLoop]: Abstraction has 22776 states and 31213 transitions. [2022-07-21 13:52:47,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-21 13:52:47,963 INFO L276 IsEmpty]: Start isEmpty. Operand 22776 states and 31213 transitions. [2022-07-21 13:52:47,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-07-21 13:52:47,969 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:52:47,969 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:52:47,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 13:52:47,970 INFO L420 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)] === [2022-07-21 13:52:47,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:52:47,970 INFO L85 PathProgramCache]: Analyzing trace with hash -297251163, now seen corresponding path program 1 times [2022-07-21 13:52:47,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:52:47,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158738974] [2022-07-21 13:52:47,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:52:47,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:52:48,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:52:48,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:48,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:52:48,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:48,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:52:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:48,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:52:48,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:48,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:52:48,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:48,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:52:48,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:48,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:52:48,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:52:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:48,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 13:52:48,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:48,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 13:52:48,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:52:48,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 13:52:48,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-21 13:52:48,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 13:52:48,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:48,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-21 13:52:48,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 13:52:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-21 13:52:48,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 13:52:48,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 13:52:48,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 13:52:48,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-21 13:52:48,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,293 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2022-07-21 13:52:48,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:52:48,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158738974] [2022-07-21 13:52:48,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158738974] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:52:48,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:52:48,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:52:48,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397377040] [2022-07-21 13:52:48,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:52:48,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:52:48,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:52:48,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:52:48,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:52:48,297 INFO L87 Difference]: Start difference. First operand 22776 states and 31213 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-21 13:52:51,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:52:51,261 INFO L93 Difference]: Finished difference Result 23274 states and 31986 transitions. [2022-07-21 13:52:51,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:52:51,262 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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 207 [2022-07-21 13:52:51,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:52:51,357 INFO L225 Difference]: With dead ends: 23274 [2022-07-21 13:52:51,372 INFO L226 Difference]: Without dead ends: 23272 [2022-07-21 13:52:51,391 INFO L412 NwaCegarLoop]: 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 [2022-07-21 13:52:51,392 INFO L413 NwaCegarLoop]: 2133 mSDtfsCounter, 2291 mSDsluCounter, 3631 mSDsCounter, 0 mSdLazyCounter, 2297 mSolverCounterSat, 789 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2524 SdHoareTripleChecker+Valid, 5764 SdHoareTripleChecker+Invalid, 3086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 789 IncrementalHoareTripleChecker+Valid, 2297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-21 13:52:51,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2524 Valid, 5764 Invalid, 3086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [789 Valid, 2297 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-21 13:52:51,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23272 states. [2022-07-21 13:52:52,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23272 to 22780. [2022-07-21 13:52:52,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22780 states, 16420 states have (on average 1.2736297198538369) internal successors, (20913), 16801 states have internal predecessors, (20913), 5092 states have call successors, (5092), 1249 states have call predecessors, (5092), 1265 states have return successors, (5211), 4858 states have call predecessors, (5211), 5088 states have call successors, (5211) [2022-07-21 13:52:52,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22780 states to 22780 states and 31216 transitions. [2022-07-21 13:52:52,423 INFO L78 Accepts]: Start accepts. Automaton has 22780 states and 31216 transitions. Word has length 207 [2022-07-21 13:52:52,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:52:52,424 INFO L495 AbstractCegarLoop]: Abstraction has 22780 states and 31216 transitions. [2022-07-21 13:52:52,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-21 13:52:52,425 INFO L276 IsEmpty]: Start isEmpty. Operand 22780 states and 31216 transitions. [2022-07-21 13:52:52,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-07-21 13:52:52,432 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:52:52,432 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:52:52,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 13:52:52,433 INFO L420 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)] === [2022-07-21 13:52:52,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:52:52,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1368003184, now seen corresponding path program 1 times [2022-07-21 13:52:52,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:52:52,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707221447] [2022-07-21 13:52:52,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:52:52,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:52:52,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:52:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:52:52,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:52,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:52:52,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:52,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:52:52,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:52,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:52:52,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:52,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:52:52,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:52,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:52:52,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:52:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:52,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 13:52:52,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:52,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 13:52:52,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:52:52,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 13:52:52,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-21 13:52:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 13:52:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-21 13:52:52,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 13:52:52,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-21 13:52:52,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 13:52:52,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 13:52:52,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 13:52:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-21 13:52:52,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-21 13:52:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:52,745 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 526 trivial. 0 not checked. [2022-07-21 13:52:52,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:52:52,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707221447] [2022-07-21 13:52:52,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707221447] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:52:52,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:52:52,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:52:52,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322238066] [2022-07-21 13:52:52,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:52:52,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:52:52,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:52:52,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:52:52,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:52:52,748 INFO L87 Difference]: Start difference. First operand 22780 states and 31216 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-21 13:52:55,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:52:55,463 INFO L93 Difference]: Finished difference Result 23278 states and 31989 transitions. [2022-07-21 13:52:55,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:52:55,464 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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 212 [2022-07-21 13:52:55,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:52:55,533 INFO L225 Difference]: With dead ends: 23278 [2022-07-21 13:52:55,533 INFO L226 Difference]: Without dead ends: 23276 [2022-07-21 13:52:55,548 INFO L412 NwaCegarLoop]: 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 [2022-07-21 13:52:55,549 INFO L413 NwaCegarLoop]: 2131 mSDtfsCounter, 2293 mSDsluCounter, 3627 mSDsCounter, 0 mSdLazyCounter, 2294 mSolverCounterSat, 789 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2526 SdHoareTripleChecker+Valid, 5758 SdHoareTripleChecker+Invalid, 3083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 789 IncrementalHoareTripleChecker+Valid, 2294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-21 13:52:55,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2526 Valid, 5758 Invalid, 3083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [789 Valid, 2294 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-21 13:52:55,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23276 states. [2022-07-21 13:52:56,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23276 to 22784. [2022-07-21 13:52:56,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22784 states, 16423 states have (on average 1.273579735736467) internal successors, (20916), 16804 states have internal predecessors, (20916), 5092 states have call successors, (5092), 1250 states have call predecessors, (5092), 1266 states have return successors, (5211), 4858 states have call predecessors, (5211), 5088 states have call successors, (5211) [2022-07-21 13:52:56,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22784 states to 22784 states and 31219 transitions. [2022-07-21 13:52:56,500 INFO L78 Accepts]: Start accepts. Automaton has 22784 states and 31219 transitions. Word has length 212 [2022-07-21 13:52:56,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:52:56,500 INFO L495 AbstractCegarLoop]: Abstraction has 22784 states and 31219 transitions. [2022-07-21 13:52:56,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-21 13:52:56,501 INFO L276 IsEmpty]: Start isEmpty. Operand 22784 states and 31219 transitions. [2022-07-21 13:52:56,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-07-21 13:52:56,508 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:52:56,509 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:52:56,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 13:52:56,509 INFO L420 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)] === [2022-07-21 13:52:56,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:52:56,510 INFO L85 PathProgramCache]: Analyzing trace with hash 825950533, now seen corresponding path program 1 times [2022-07-21 13:52:56,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:52:56,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648018177] [2022-07-21 13:52:56,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:52:56,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:52:56,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:52:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:52:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:52:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:56,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:52:56,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:56,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:52:56,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:52:56,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:56,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:52:56,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:56,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:52:56,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 13:52:56,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:56,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 13:52:56,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:52:56,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 13:52:56,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-21 13:52:56,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 13:52:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:56,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-21 13:52:56,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 13:52:56,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-21 13:52:56,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 13:52:56,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 13:52:56,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 13:52:56,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-21 13:52:56,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-21 13:52:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-21 13:52:56,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,839 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2022-07-21 13:52:56,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:52:56,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648018177] [2022-07-21 13:52:56,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648018177] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:52:56,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:52:56,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:52:56,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427418414] [2022-07-21 13:52:56,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:52:56,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:52:56,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:52:56,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:52:56,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:52:56,842 INFO L87 Difference]: Start difference. First operand 22784 states and 31219 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-21 13:53:00,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:53:00,102 INFO L93 Difference]: Finished difference Result 24680 states and 33504 transitions. [2022-07-21 13:53:00,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 13:53:00,103 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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 217 [2022-07-21 13:53:00,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:53:00,190 INFO L225 Difference]: With dead ends: 24680 [2022-07-21 13:53:00,190 INFO L226 Difference]: Without dead ends: 24678 [2022-07-21 13:53:00,209 INFO L412 NwaCegarLoop]: 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 [2022-07-21 13:53:00,210 INFO L413 NwaCegarLoop]: 2158 mSDtfsCounter, 2076 mSDsluCounter, 3934 mSDsCounter, 0 mSdLazyCounter, 2647 mSolverCounterSat, 793 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2292 SdHoareTripleChecker+Valid, 6092 SdHoareTripleChecker+Invalid, 3440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 793 IncrementalHoareTripleChecker+Valid, 2647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-21 13:53:00,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2292 Valid, 6092 Invalid, 3440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [793 Valid, 2647 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-21 13:53:00,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24678 states. [2022-07-21 13:53:01,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24678 to 24087. [2022-07-21 13:53:01,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24087 states, 17305 states have (on average 1.2643166714822305) internal successors, (21879), 17695 states have internal predecessors, (21879), 5305 states have call successors, (5305), 1458 states have call predecessors, (5305), 1474 states have return successors, (5424), 5071 states have call predecessors, (5424), 5301 states have call successors, (5424) [2022-07-21 13:53:01,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24087 states to 24087 states and 32608 transitions. [2022-07-21 13:53:01,285 INFO L78 Accepts]: Start accepts. Automaton has 24087 states and 32608 transitions. Word has length 217 [2022-07-21 13:53:01,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:53:01,285 INFO L495 AbstractCegarLoop]: Abstraction has 24087 states and 32608 transitions. [2022-07-21 13:53:01,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-21 13:53:01,286 INFO L276 IsEmpty]: Start isEmpty. Operand 24087 states and 32608 transitions. [2022-07-21 13:53:01,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-07-21 13:53:01,294 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:53:01,294 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 8, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:53:01,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 13:53:01,295 INFO L420 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)] === [2022-07-21 13:53:01,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:53:01,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1118047856, now seen corresponding path program 1 times [2022-07-21 13:53:01,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:53:01,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115624329] [2022-07-21 13:53:01,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:53:01,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:53:01,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:53:01,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:01,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:53:01,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:01,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:53:01,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:01,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:53:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:01,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:53:01,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:01,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:53:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:53:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:01,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:53:01,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 13:53:01,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:01,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 13:53:01,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:53:01,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 13:53:01,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-21 13:53:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 13:53:01,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:01,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-21 13:53:01,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 13:53:01,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-21 13:53:01,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 13:53:01,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 13:53:01,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 13:53:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-21 13:53:01,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-21 13:53:01,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-21 13:53:01,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-21 13:53:01,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:01,810 INFO L134 CoverageAnalysis]: Checked inductivity of 584 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2022-07-21 13:53:01,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:53:01,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115624329] [2022-07-21 13:53:01,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115624329] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:53:01,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:53:01,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:53:01,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355072130] [2022-07-21 13:53:01,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:53:01,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:53:01,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:53:01,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:53:01,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:53:01,812 INFO L87 Difference]: Start difference. First operand 24087 states and 32608 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-21 13:53:04,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:53:04,757 INFO L93 Difference]: Finished difference Result 24684 states and 33507 transitions. [2022-07-21 13:53:04,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:53:04,757 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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 222 [2022-07-21 13:53:04,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:53:04,824 INFO L225 Difference]: With dead ends: 24684 [2022-07-21 13:53:04,824 INFO L226 Difference]: Without dead ends: 24682 [2022-07-21 13:53:04,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:53:04,836 INFO L413 NwaCegarLoop]: 2135 mSDtfsCounter, 2291 mSDsluCounter, 3637 mSDsCounter, 0 mSdLazyCounter, 2297 mSolverCounterSat, 786 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2522 SdHoareTripleChecker+Valid, 5772 SdHoareTripleChecker+Invalid, 3083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 786 IncrementalHoareTripleChecker+Valid, 2297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-21 13:53:04,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2522 Valid, 5772 Invalid, 3083 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [786 Valid, 2297 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-21 13:53:04,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24682 states. [2022-07-21 13:53:05,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24682 to 24091. [2022-07-21 13:53:05,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24091 states, 17308 states have (on average 1.2642708574069794) internal successors, (21882), 17698 states have internal predecessors, (21882), 5305 states have call successors, (5305), 1459 states have call predecessors, (5305), 1475 states have return successors, (5424), 5071 states have call predecessors, (5424), 5301 states have call successors, (5424) [2022-07-21 13:53:05,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24091 states to 24091 states and 32611 transitions. [2022-07-21 13:53:05,960 INFO L78 Accepts]: Start accepts. Automaton has 24091 states and 32611 transitions. Word has length 222 [2022-07-21 13:53:05,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:53:05,961 INFO L495 AbstractCegarLoop]: Abstraction has 24091 states and 32611 transitions. [2022-07-21 13:53:05,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-21 13:53:05,961 INFO L276 IsEmpty]: Start isEmpty. Operand 24091 states and 32611 transitions. [2022-07-21 13:53:05,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-07-21 13:53:05,976 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:53:05,977 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 9, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:53:05,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 13:53:05,977 INFO L420 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)] === [2022-07-21 13:53:05,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:53:05,978 INFO L85 PathProgramCache]: Analyzing trace with hash 593009637, now seen corresponding path program 1 times [2022-07-21 13:53:05,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:53:05,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182808846] [2022-07-21 13:53:05,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:53:05,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:53:06,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:53:06,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:06,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:53:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:53:06,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:53:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:06,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:53:06,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:53:06,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:06,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:53:06,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:06,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:53:06,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 13:53:06,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:06,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 13:53:06,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:53:06,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 13:53:06,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-21 13:53:06,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 13:53:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-21 13:53:06,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 13:53:06,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-21 13:53:06,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 13:53:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 13:53:06,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 13:53:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-21 13:53:06,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-21 13:53:06,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-21 13:53:06,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-21 13:53:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 13:53:06,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,379 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 598 trivial. 0 not checked. [2022-07-21 13:53:06,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:53:06,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182808846] [2022-07-21 13:53:06,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182808846] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:53:06,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:53:06,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:53:06,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559765123] [2022-07-21 13:53:06,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:53:06,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:53:06,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:53:06,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:53:06,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:53:06,382 INFO L87 Difference]: Start difference. First operand 24091 states and 32611 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-21 13:53:09,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:53:09,509 INFO L93 Difference]: Finished difference Result 24688 states and 33510 transitions. [2022-07-21 13:53:09,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:53:09,510 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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 227 [2022-07-21 13:53:09,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:53:09,582 INFO L225 Difference]: With dead ends: 24688 [2022-07-21 13:53:09,582 INFO L226 Difference]: Without dead ends: 24686 [2022-07-21 13:53:09,595 INFO L412 NwaCegarLoop]: 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 [2022-07-21 13:53:09,596 INFO L413 NwaCegarLoop]: 2135 mSDtfsCounter, 2291 mSDsluCounter, 3637 mSDsCounter, 0 mSdLazyCounter, 2297 mSolverCounterSat, 785 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2522 SdHoareTripleChecker+Valid, 5772 SdHoareTripleChecker+Invalid, 3082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 785 IncrementalHoareTripleChecker+Valid, 2297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:53:09,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2522 Valid, 5772 Invalid, 3082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [785 Valid, 2297 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-21 13:53:09,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24686 states. [2022-07-21 13:53:10,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24686 to 24095. [2022-07-21 13:53:10,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24095 states, 17311 states have (on average 1.2642250592109063) internal successors, (21885), 17701 states have internal predecessors, (21885), 5305 states have call successors, (5305), 1460 states have call predecessors, (5305), 1476 states have return successors, (5424), 5071 states have call predecessors, (5424), 5301 states have call successors, (5424) [2022-07-21 13:53:10,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24095 states to 24095 states and 32614 transitions. [2022-07-21 13:53:10,761 INFO L78 Accepts]: Start accepts. Automaton has 24095 states and 32614 transitions. Word has length 227 [2022-07-21 13:53:10,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:53:10,762 INFO L495 AbstractCegarLoop]: Abstraction has 24095 states and 32614 transitions. [2022-07-21 13:53:10,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-21 13:53:10,762 INFO L276 IsEmpty]: Start isEmpty. Operand 24095 states and 32614 transitions. [2022-07-21 13:53:10,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-07-21 13:53:10,768 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:53:10,768 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 10, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:53:10,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-21 13:53:10,769 INFO L420 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)] === [2022-07-21 13:53:10,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:53:10,769 INFO L85 PathProgramCache]: Analyzing trace with hash -164083888, now seen corresponding path program 1 times [2022-07-21 13:53:10,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:53:10,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478701770] [2022-07-21 13:53:10,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:53:10,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:53:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:10,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:53:10,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:10,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:10,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:53:10,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:10,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:10,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:10,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:53:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:10,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:10,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:53:10,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:10,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:10,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:10,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:53:11,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:11,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:11,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:11,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:53:11,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:11,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:11,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:11,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:53:11,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:11,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:11,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:11,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:53:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:11,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:11,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 13:53:11,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:11,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:11,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 13:53:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:11,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:53:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:11,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 13:53:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:11,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-21 13:53:11,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:11,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 13:53:11,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:11,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:11,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:11,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-21 13:53:11,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:11,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 13:53:11,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:11,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-21 13:53:11,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:11,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 13:53:11,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:11,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 13:53:11,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:11,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 13:53:11,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:11,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-21 13:53:11,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:11,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-21 13:53:11,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:11,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-21 13:53:11,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:11,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-21 13:53:11,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:11,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 13:53:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:11,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-21 13:53:11,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:11,161 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2022-07-21 13:53:11,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:53:11,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478701770] [2022-07-21 13:53:11,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478701770] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:53:11,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:53:11,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:53:11,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676760942] [2022-07-21 13:53:11,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:53:11,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:53:11,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:53:11,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:53:11,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:53:11,165 INFO L87 Difference]: Start difference. First operand 24095 states and 32614 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-21 13:53:14,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:53:14,326 INFO L93 Difference]: Finished difference Result 24692 states and 33513 transitions. [2022-07-21 13:53:14,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:53:14,327 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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 232 [2022-07-21 13:53:14,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:53:14,406 INFO L225 Difference]: With dead ends: 24692 [2022-07-21 13:53:14,406 INFO L226 Difference]: Without dead ends: 24690 [2022-07-21 13:53:14,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:53:14,420 INFO L413 NwaCegarLoop]: 2135 mSDtfsCounter, 2291 mSDsluCounter, 3637 mSDsCounter, 0 mSdLazyCounter, 2297 mSolverCounterSat, 784 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2522 SdHoareTripleChecker+Valid, 5772 SdHoareTripleChecker+Invalid, 3081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 784 IncrementalHoareTripleChecker+Valid, 2297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-21 13:53:14,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2522 Valid, 5772 Invalid, 3081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [784 Valid, 2297 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-21 13:53:14,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24690 states. [2022-07-21 13:53:15,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24690 to 24099. [2022-07-21 13:53:15,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24099 states, 17314 states have (on average 1.2641792768857572) internal successors, (21888), 17704 states have internal predecessors, (21888), 5305 states have call successors, (5305), 1461 states have call predecessors, (5305), 1477 states have return successors, (5424), 5071 states have call predecessors, (5424), 5301 states have call successors, (5424) [2022-07-21 13:53:15,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24099 states to 24099 states and 32617 transitions. [2022-07-21 13:53:15,631 INFO L78 Accepts]: Start accepts. Automaton has 24099 states and 32617 transitions. Word has length 232 [2022-07-21 13:53:15,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:53:15,632 INFO L495 AbstractCegarLoop]: Abstraction has 24099 states and 32617 transitions. [2022-07-21 13:53:15,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-21 13:53:15,632 INFO L276 IsEmpty]: Start isEmpty. Operand 24099 states and 32617 transitions. [2022-07-21 13:53:15,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-07-21 13:53:15,639 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:53:15,639 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 10, 10, 9, 9, 9, 9, 9, 9, 6, 6, 6, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:53:15,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-21 13:53:15,640 INFO L420 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)] === [2022-07-21 13:53:15,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:53:15,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1934399128, now seen corresponding path program 1 times [2022-07-21 13:53:15,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:53:15,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626723070] [2022-07-21 13:53:15,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:53:15,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:53:15,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:53:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:15,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:53:15,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:53:15,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:53:15,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:15,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:53:15,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:15,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:53:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:15,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:53:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:15,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:53:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:15,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 13:53:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 13:53:15,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:53:15,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 13:53:15,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-21 13:53:15,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 13:53:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-21 13:53:15,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 13:53:15,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 13:53:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-21 13:53:15,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 13:53:15,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-21 13:53:15,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-21 13:53:15,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:53:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-21 13:53:15,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 13:53:15,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-07-21 13:53:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-07-21 13:53:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-21 13:53:15,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-21 13:53:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-21 13:53:15,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-21 13:53:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-07-21 13:53:15,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:15,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-07-21 13:53:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:16,003 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 795 trivial. 0 not checked. [2022-07-21 13:53:16,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:53:16,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626723070] [2022-07-21 13:53:16,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626723070] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:53:16,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:53:16,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 13:53:16,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529058544] [2022-07-21 13:53:16,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:53:16,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 13:53:16,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:53:16,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 13:53:16,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:53:16,006 INFO L87 Difference]: Start difference. First operand 24099 states and 32617 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (34), 5 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-21 13:53:20,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:53:20,161 INFO L93 Difference]: Finished difference Result 24696 states and 33516 transitions. [2022-07-21 13:53:20,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 13:53:20,162 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (34), 5 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 273 [2022-07-21 13:53:20,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:53:20,242 INFO L225 Difference]: With dead ends: 24696 [2022-07-21 13:53:20,242 INFO L226 Difference]: Without dead ends: 24692 [2022-07-21 13:53:20,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-07-21 13:53:20,257 INFO L413 NwaCegarLoop]: 2072 mSDtfsCounter, 2835 mSDsluCounter, 3763 mSDsCounter, 0 mSdLazyCounter, 3295 mSolverCounterSat, 1515 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3023 SdHoareTripleChecker+Valid, 5835 SdHoareTripleChecker+Invalid, 4810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1515 IncrementalHoareTripleChecker+Valid, 3295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:53:20,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3023 Valid, 5835 Invalid, 4810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1515 Valid, 3295 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-21 13:53:20,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24692 states. [2022-07-21 13:53:21,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24692 to 24101. [2022-07-21 13:53:21,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24101 states, 17316 states have (on average 1.264091014091014) internal successors, (21889), 17705 states have internal predecessors, (21889), 5305 states have call successors, (5305), 1462 states have call predecessors, (5305), 1477 states have return successors, (5424), 5071 states have call predecessors, (5424), 5301 states have call successors, (5424) [2022-07-21 13:53:21,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24101 states to 24101 states and 32618 transitions. [2022-07-21 13:53:21,447 INFO L78 Accepts]: Start accepts. Automaton has 24101 states and 32618 transitions. Word has length 273 [2022-07-21 13:53:21,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:53:21,447 INFO L495 AbstractCegarLoop]: Abstraction has 24101 states and 32618 transitions. [2022-07-21 13:53:21,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (34), 5 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-21 13:53:21,448 INFO L276 IsEmpty]: Start isEmpty. Operand 24101 states and 32618 transitions. [2022-07-21 13:53:21,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-07-21 13:53:21,454 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:53:21,455 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 11, 11, 9, 9, 9, 9, 9, 9, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:53:21,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-21 13:53:21,455 INFO L420 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)] === [2022-07-21 13:53:21,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:53:21,455 INFO L85 PathProgramCache]: Analyzing trace with hash 728272172, now seen corresponding path program 1 times [2022-07-21 13:53:21,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:53:21,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536684357] [2022-07-21 13:53:21,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:53:21,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:53:21,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:53:21,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:21,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:53:21,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:21,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:53:21,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:21,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:53:21,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:21,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:53:21,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:21,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:53:21,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:21,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:53:21,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:21,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:53:21,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:21,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 13:53:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 13:53:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:53:21,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 13:53:21,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-21 13:53:21,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 13:53:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:21,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-21 13:53:21,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 13:53:21,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 13:53:21,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-21 13:53:21,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 13:53:21,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-21 13:53:21,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-21 13:53:21,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:53:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 13:53:21,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-21 13:53:21,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-07-21 13:53:21,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-21 13:53:21,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-21 13:53:21,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-21 13:53:21,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-21 13:53:21,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-07-21 13:53:21,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-21 13:53:21,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-07-21 13:53:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-21 13:53:21,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,731 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 822 trivial. 0 not checked. [2022-07-21 13:53:21,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:53:21,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536684357] [2022-07-21 13:53:21,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536684357] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:53:21,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:53:21,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 13:53:21,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621457960] [2022-07-21 13:53:21,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:53:21,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:53:21,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:53:21,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:53:21,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:53:21,733 INFO L87 Difference]: Start difference. First operand 24101 states and 32618 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (36), 4 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-21 13:53:27,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:53:27,243 INFO L93 Difference]: Finished difference Result 56640 states and 76768 transitions. [2022-07-21 13:53:27,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 13:53:27,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (36), 4 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 277 [2022-07-21 13:53:27,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:53:27,338 INFO L225 Difference]: With dead ends: 56640 [2022-07-21 13:53:27,338 INFO L226 Difference]: Without dead ends: 32731 [2022-07-21 13:53:27,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-21 13:53:27,398 INFO L413 NwaCegarLoop]: 4015 mSDtfsCounter, 2785 mSDsluCounter, 4182 mSDsCounter, 0 mSdLazyCounter, 2912 mSolverCounterSat, 1806 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3028 SdHoareTripleChecker+Valid, 8197 SdHoareTripleChecker+Invalid, 4718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1806 IncrementalHoareTripleChecker+Valid, 2912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-07-21 13:53:27,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3028 Valid, 8197 Invalid, 4718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1806 Valid, 2912 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-07-21 13:53:27,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32731 states. [2022-07-21 13:53:28,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32731 to 31879. [2022-07-21 13:53:28,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31879 states, 22908 states have (on average 1.2642744892613933) internal successors, (28962), 23417 states have internal predecessors, (28962), 7010 states have call successors, (7010), 1940 states have call predecessors, (7010), 1958 states have return successors, (7170), 6705 states have call predecessors, (7170), 7006 states have call successors, (7170) [2022-07-21 13:53:28,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31879 states to 31879 states and 43142 transitions. [2022-07-21 13:53:28,998 INFO L78 Accepts]: Start accepts. Automaton has 31879 states and 43142 transitions. Word has length 277 [2022-07-21 13:53:28,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:53:28,999 INFO L495 AbstractCegarLoop]: Abstraction has 31879 states and 43142 transitions. [2022-07-21 13:53:28,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (36), 4 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-21 13:53:28,999 INFO L276 IsEmpty]: Start isEmpty. Operand 31879 states and 43142 transitions. [2022-07-21 13:53:29,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-07-21 13:53:29,007 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:53:29,008 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 11, 11, 9, 9, 9, 9, 9, 9, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:53:29,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-21 13:53:29,008 INFO L420 AbstractCegarLoop]: === Iteration 19 === 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)] === [2022-07-21 13:53:29,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:53:29,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1212309842, now seen corresponding path program 1 times [2022-07-21 13:53:29,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:53:29,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892903906] [2022-07-21 13:53:29,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:53:29,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:53:29,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:53:29,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:29,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:53:29,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:29,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:53:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:29,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:53:29,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:29,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:53:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:29,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:53:29,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:29,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:53:29,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:29,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:53:29,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:29,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 13:53:29,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:29,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 13:53:29,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:53:29,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 13:53:29,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-21 13:53:29,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 13:53:29,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:29,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-21 13:53:29,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 13:53:29,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 13:53:29,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-21 13:53:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 13:53:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-21 13:53:29,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-21 13:53:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:53:29,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 13:53:29,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-21 13:53:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-07-21 13:53:29,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-21 13:53:29,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-21 13:53:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-21 13:53:29,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-21 13:53:29,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-07-21 13:53:29,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-21 13:53:29,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-07-21 13:53:29,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-21 13:53:29,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,277 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 822 trivial. 0 not checked. [2022-07-21 13:53:29,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:53:29,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892903906] [2022-07-21 13:53:29,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892903906] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:53:29,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:53:29,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 13:53:29,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484622500] [2022-07-21 13:53:29,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:53:29,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:53:29,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:53:29,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:53:29,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:53:29,280 INFO L87 Difference]: Start difference. First operand 31879 states and 43142 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (36), 4 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-21 13:53:35,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:53:35,311 INFO L93 Difference]: Finished difference Result 72309 states and 98056 transitions. [2022-07-21 13:53:35,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 13:53:35,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (36), 4 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 277 [2022-07-21 13:53:35,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:53:35,451 INFO L225 Difference]: With dead ends: 72309 [2022-07-21 13:53:35,451 INFO L226 Difference]: Without dead ends: 40622 [2022-07-21 13:53:35,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 13:53:35,529 INFO L413 NwaCegarLoop]: 3990 mSDtfsCounter, 2773 mSDsluCounter, 4182 mSDsCounter, 0 mSdLazyCounter, 2919 mSolverCounterSat, 1758 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3014 SdHoareTripleChecker+Valid, 8172 SdHoareTripleChecker+Invalid, 4677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1758 IncrementalHoareTripleChecker+Valid, 2919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-07-21 13:53:35,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3014 Valid, 8172 Invalid, 4677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1758 Valid, 2919 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-07-21 13:53:35,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40622 states. [2022-07-21 13:53:37,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40622 to 39633. [2022-07-21 13:53:37,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39633 states, 28488 states have (on average 1.2644973322100534) internal successors, (36023), 29117 states have internal predecessors, (36023), 8707 states have call successors, (8707), 2410 states have call predecessors, (8707), 2435 states have return successors, (8908), 8335 states have call predecessors, (8908), 8703 states have call successors, (8908) [2022-07-21 13:53:37,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39633 states to 39633 states and 53638 transitions. [2022-07-21 13:53:37,602 INFO L78 Accepts]: Start accepts. Automaton has 39633 states and 53638 transitions. Word has length 277 [2022-07-21 13:53:37,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:53:37,603 INFO L495 AbstractCegarLoop]: Abstraction has 39633 states and 53638 transitions. [2022-07-21 13:53:37,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (36), 4 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-21 13:53:37,604 INFO L276 IsEmpty]: Start isEmpty. Operand 39633 states and 53638 transitions. [2022-07-21 13:53:37,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-07-21 13:53:37,616 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:53:37,616 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 11, 11, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:53:37,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-21 13:53:37,617 INFO L420 AbstractCegarLoop]: === Iteration 20 === 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)] === [2022-07-21 13:53:37,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:53:37,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1300981712, now seen corresponding path program 1 times [2022-07-21 13:53:37,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:53:37,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580087734] [2022-07-21 13:53:37,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:53:37,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:53:37,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:53:37,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:37,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:53:37,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:37,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:53:37,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:37,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:53:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:37,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:53:37,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:37,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:53:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:53:37,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:53:37,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:37,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 13:53:37,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 13:53:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:53:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 13:53:37,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-21 13:53:37,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 13:53:37,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:37,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-21 13:53:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 13:53:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-21 13:53:37,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 13:53:37,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 13:53:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 13:53:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-21 13:53:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-21 13:53:37,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-21 13:53:37,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-21 13:53:37,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 13:53:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-21 13:53:37,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-07-21 13:53:37,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-21 13:53:37,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:37,988 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 706 trivial. 0 not checked. [2022-07-21 13:53:37,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:53:37,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580087734] [2022-07-21 13:53:37,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580087734] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:53:37,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:53:37,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:53:37,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37510321] [2022-07-21 13:53:37,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:53:37,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:53:37,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:53:37,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:53:37,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:53:37,990 INFO L87 Difference]: Start difference. First operand 39633 states and 53638 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-21 13:53:41,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:53:41,851 INFO L93 Difference]: Finished difference Result 40618 states and 55122 transitions. [2022-07-21 13:53:41,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:53:41,852 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 242 [2022-07-21 13:53:41,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:53:41,989 INFO L225 Difference]: With dead ends: 40618 [2022-07-21 13:53:41,989 INFO L226 Difference]: Without dead ends: 39953 [2022-07-21 13:53:42,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:53:42,012 INFO L413 NwaCegarLoop]: 2127 mSDtfsCounter, 2287 mSDsluCounter, 3624 mSDsCounter, 0 mSdLazyCounter, 2289 mSolverCounterSat, 783 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2521 SdHoareTripleChecker+Valid, 5751 SdHoareTripleChecker+Invalid, 3072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 783 IncrementalHoareTripleChecker+Valid, 2289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-21 13:53:42,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2521 Valid, 5751 Invalid, 3072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [783 Valid, 2289 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-21 13:53:42,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39953 states. [2022-07-21 13:53:43,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39953 to 31447. [2022-07-21 13:53:43,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31447 states, 22610 states have (on average 1.264484741264927) internal successors, (28590), 23095 states have internal predecessors, (28590), 6905 states have call successors, (6905), 1902 states have call predecessors, (6905), 1930 states have return successors, (7069), 6633 states have call predecessors, (7069), 6905 states have call successors, (7069) [2022-07-21 13:53:43,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31447 states to 31447 states and 42564 transitions. [2022-07-21 13:53:43,798 INFO L78 Accepts]: Start accepts. Automaton has 31447 states and 42564 transitions. Word has length 242 [2022-07-21 13:53:43,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:53:43,798 INFO L495 AbstractCegarLoop]: Abstraction has 31447 states and 42564 transitions. [2022-07-21 13:53:43,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-21 13:53:43,798 INFO L276 IsEmpty]: Start isEmpty. Operand 31447 states and 42564 transitions. [2022-07-21 13:53:43,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-07-21 13:53:43,808 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:53:43,809 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 9, 9, 9, 9, 9, 9, 6, 6, 6, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:53:43,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-21 13:53:43,809 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:53:43,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:53:43,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1562466934, now seen corresponding path program 1 times [2022-07-21 13:53:43,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:53:43,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910168333] [2022-07-21 13:53:43,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:53:43,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:53:43,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:43,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:53:43,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:43,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:43,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:43,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:53:43,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:43,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:43,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:43,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:53:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:43,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:43,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:43,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:53:43,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:43,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:43,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:53:43,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:43,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:43,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:43,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:53:43,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:43,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:43,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:43,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:53:43,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:43,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:43,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:43,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:53:43,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:43,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:43,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:43,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 13:53:43,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:43,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:43,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:44,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 13:53:44,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:44,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:53:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:44,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 13:53:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:44,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-21 13:53:44,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:44,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-21 13:53:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:44,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-21 13:53:44,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:44,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:44,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:44,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-21 13:53:44,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:44,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-21 13:53:44,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:44,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-07-21 13:53:44,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:44,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 13:53:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:44,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:44,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:44,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 13:53:44,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:44,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:53:44,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:44,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 13:53:44,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:44,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-21 13:53:44,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:44,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-07-21 13:53:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:44,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-21 13:53:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:44,179 INFO L134 CoverageAnalysis]: Checked inductivity of 604 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2022-07-21 13:53:44,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:53:44,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910168333] [2022-07-21 13:53:44,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910168333] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:53:44,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:53:44,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:53:44,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744147214] [2022-07-21 13:53:44,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:53:44,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:53:44,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:53:44,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:53:44,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:53:44,181 INFO L87 Difference]: Start difference. First operand 31447 states and 42564 transitions. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-21 13:53:51,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:53:51,531 INFO L93 Difference]: Finished difference Result 74306 states and 100528 transitions. [2022-07-21 13:53:51,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:53:51,531 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 260 [2022-07-21 13:53:51,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:53:51,677 INFO L225 Difference]: With dead ends: 74306 [2022-07-21 13:53:51,677 INFO L226 Difference]: Without dead ends: 43051 [2022-07-21 13:53:51,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-21 13:53:51,751 INFO L413 NwaCegarLoop]: 3204 mSDtfsCounter, 1578 mSDsluCounter, 3851 mSDsCounter, 0 mSdLazyCounter, 2913 mSolverCounterSat, 657 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1816 SdHoareTripleChecker+Valid, 7055 SdHoareTripleChecker+Invalid, 3570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 657 IncrementalHoareTripleChecker+Valid, 2913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-07-21 13:53:51,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1816 Valid, 7055 Invalid, 3570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [657 Valid, 2913 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-07-21 13:53:51,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43051 states. [2022-07-21 13:53:53,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43051 to 41639. [2022-07-21 13:53:53,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41639 states, 30106 states have (on average 1.2610775260745366) internal successors, (37966), 30691 states have internal predecessors, (37966), 8913 states have call successors, (8913), 2590 states have call predecessors, (8913), 2618 states have return successors, (9077), 8589 states have call predecessors, (9077), 8913 states have call successors, (9077) [2022-07-21 13:53:53,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41639 states to 41639 states and 55956 transitions. [2022-07-21 13:53:53,926 INFO L78 Accepts]: Start accepts. Automaton has 41639 states and 55956 transitions. Word has length 260 [2022-07-21 13:53:53,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:53:53,927 INFO L495 AbstractCegarLoop]: Abstraction has 41639 states and 55956 transitions. [2022-07-21 13:53:53,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-21 13:53:53,927 INFO L276 IsEmpty]: Start isEmpty. Operand 41639 states and 55956 transitions. [2022-07-21 13:53:53,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2022-07-21 13:53:53,937 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:53:53,937 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 10, 10, 10, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:53:53,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-21 13:53:53,937 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:53:53,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:53:53,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1960838, now seen corresponding path program 1 times [2022-07-21 13:53:53,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:53:53,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488022690] [2022-07-21 13:53:53,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:53:53,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:53:54,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:53:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:54,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:53:54,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:54,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:53:54,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:53:54,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:53:54,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:53:54,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:54,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:53:54,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:54,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:53:54,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:54,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 13:53:54,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:54,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 13:53:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:53:54,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 13:53:54,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-21 13:53:54,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-21 13:53:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-21 13:53:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-21 13:53:54,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-21 13:53:54,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-21 13:53:54,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:53:54,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 13:53:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-21 13:53:54,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:54,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:53:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 13:53:54,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-21 13:53:54,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-21 13:53:54,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-21 13:53:54,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 13:53:54,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:53:54,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 13:53:54,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:53:54,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 13:53:54,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-07-21 13:53:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-21 13:53:54,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-07-21 13:53:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:54,564 INFO L134 CoverageAnalysis]: Checked inductivity of 848 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 821 trivial. 0 not checked. [2022-07-21 13:53:54,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:53:54,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488022690] [2022-07-21 13:53:54,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488022690] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:53:54,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:53:54,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:53:54,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533102705] [2022-07-21 13:53:54,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:53:54,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:53:54,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:53:54,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:53:54,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:53:54,567 INFO L87 Difference]: Start difference. First operand 41639 states and 55956 transitions. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 3 states have internal predecessors, (140), 3 states have call successors, (36), 5 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34)